/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 17:06:01,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 17:06:01,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 17:06:01,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 17:06:01,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 17:06:01,405 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 17:06:01,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 17:06:01,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 17:06:01,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 17:06:01,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 17:06:01,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 17:06:01,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 17:06:01,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 17:06:01,407 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 17:06:01,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 17:06:01,408 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 17:06:01,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 17:06:01,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 17:06:01,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 17:06:01,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 17:06:01,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 17:06:01,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 17:06:01,409 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 17:06:01,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 17:06:01,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 17:06:01,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 17:06:01,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 17:06:01,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 17:06:01,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 17:06:01,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 17:06:01,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 17:06:01,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 17:06:01,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 17:06:01,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 17:06:01,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 17:06:01,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 17:06:01,412 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 17:06:01,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 17:06:01,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 17:06:01,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 17:06:01,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 17:06:01,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 17:06:01,645 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 17:06:01,646 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 17:06:01,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl [2022-03-15 17:06:01,647 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl' [2022-03-15 17:06:01,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 17:06:01,684 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 17:06:01,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 17:06:01,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 17:06:01,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 17:06:01,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,714 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 17:06:01,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 17:06:01,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 17:06:01,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 17:06:01,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 17:06:01,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 17:06:01,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 17:06:01,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 17:06:01,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 17:06:01,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/1) ... [2022-03-15 17:06:01,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 17:06:01,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 17:06:01,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 17:06:01,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 17:06:01,785 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-15 17:06:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 17:06:01,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 17:06:01,786 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-15 17:06:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 17:06:01,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 17:06:01,786 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 17:06:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 17:06:01,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 17:06:01,787 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-15 17:06:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 17:06:01,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 17:06:01,787 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-15 17:06:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 17:06:01,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 17:06:01,791 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 17:06:01,827 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 17:06:01,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 17:06:01,904 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 17:06:01,911 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 17:06:01,911 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 17:06:01,913 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 05:06:01 BoogieIcfgContainer [2022-03-15 17:06:01,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 17:06:01,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 17:06:01,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 17:06:01,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 17:06:01,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 05:06:01" (1/2) ... [2022-03-15 17:06:01,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd35e6c and model type easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 05:06:01, skipping insertion in model container [2022-03-15 17:06:01,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 05:06:01" (2/2) ... [2022-03-15 17:06:01,920 INFO L111 eAbstractionObserver]: Analyzing ICFG easy10.wvr.bpl [2022-03-15 17:06:01,924 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 17:06:01,924 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 17:06:01,924 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 17:06:01,924 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 17:06:01,961 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 17:06:01,995 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 17:06:02,022 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 17:06:02,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 17:06:02,030 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 45 transitions, 122 flow [2022-03-15 17:06:02,330 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5269 states, 5268 states have (on average 3.4994305239179955) internal successors, (18435), 5268 states have internal predecessors, (18435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:02,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 5269 states, 5268 states have (on average 3.4994305239179955) internal successors, (18435), 5268 states have internal predecessors, (18435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:02,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:02,413 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:02,413 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] [2022-03-15 17:06:02,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:02,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:02,418 INFO L85 PathProgramCache]: Analyzing trace with hash -505665144, now seen corresponding path program 1 times [2022-03-15 17:06:02,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:02,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422618539] [2022-03-15 17:06:02,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:02,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:02,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:02,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:02,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422618539] [2022-03-15 17:06:02,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422618539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:02,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:02,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:06:02,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424652493] [2022-03-15 17:06:02,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:02,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 17:06:02,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:02,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 17:06:02,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 17:06:02,628 INFO L87 Difference]: Start difference. First operand has 5269 states, 5268 states have (on average 3.4994305239179955) internal successors, (18435), 5268 states have internal predecessors, (18435), 0 states have call successors, (0), 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 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:02,760 INFO L93 Difference]: Finished difference Result 4197 states and 14419 transitions. [2022-03-15 17:06:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 17:06:02,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:02,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:02,815 INFO L225 Difference]: With dead ends: 4197 [2022-03-15 17:06:02,815 INFO L226 Difference]: Without dead ends: 4197 [2022-03-15 17:06:02,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 17:06:02,822 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 19 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:02,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 56 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:06:02,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2022-03-15 17:06:03,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 4197. [2022-03-15 17:06:03,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4197 states, 4196 states have (on average 3.436367969494757) internal successors, (14419), 4196 states have internal predecessors, (14419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4197 states to 4197 states and 14419 transitions. [2022-03-15 17:06:03,125 INFO L78 Accepts]: Start accepts. Automaton has 4197 states and 14419 transitions. Word has length 39 [2022-03-15 17:06:03,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:03,126 INFO L470 AbstractCegarLoop]: Abstraction has 4197 states and 14419 transitions. [2022-03-15 17:06:03,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:03,126 INFO L276 IsEmpty]: Start isEmpty. Operand 4197 states and 14419 transitions. [2022-03-15 17:06:03,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:03,139 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:03,139 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] [2022-03-15 17:06:03,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 17:06:03,140 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:03,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:03,145 INFO L85 PathProgramCache]: Analyzing trace with hash -436205732, now seen corresponding path program 2 times [2022-03-15 17:06:03,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:03,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969101487] [2022-03-15 17:06:03,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:03,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:03,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:03,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969101487] [2022-03-15 17:06:03,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969101487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:03,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:03,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:06:03,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379585060] [2022-03-15 17:06:03,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:03,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 17:06:03,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:03,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 17:06:03,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 17:06:03,205 INFO L87 Difference]: Start difference. First operand 4197 states and 14419 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:03,327 INFO L93 Difference]: Finished difference Result 3290 states and 11077 transitions. [2022-03-15 17:06:03,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 17:06:03,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:03,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:03,352 INFO L225 Difference]: With dead ends: 3290 [2022-03-15 17:06:03,352 INFO L226 Difference]: Without dead ends: 3290 [2022-03-15 17:06:03,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 17:06:03,363 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:03,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 56 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 17:06:03,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2022-03-15 17:06:03,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3290. [2022-03-15 17:06:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3290 states, 3289 states have (on average 3.367892976588629) internal successors, (11077), 3289 states have internal predecessors, (11077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:03,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 11077 transitions. [2022-03-15 17:06:03,487 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 11077 transitions. Word has length 39 [2022-03-15 17:06:03,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:03,487 INFO L470 AbstractCegarLoop]: Abstraction has 3290 states and 11077 transitions. [2022-03-15 17:06:03,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:03,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 11077 transitions. [2022-03-15 17:06:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:03,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:03,499 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] [2022-03-15 17:06:03,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 17:06:03,500 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:03,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:03,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1669039620, now seen corresponding path program 3 times [2022-03-15 17:06:03,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:03,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325787113] [2022-03-15 17:06:03,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:03,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:04,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:04,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325787113] [2022-03-15 17:06:04,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325787113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:04,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:04,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 17:06:04,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585913165] [2022-03-15 17:06:04,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:04,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 17:06:04,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:04,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 17:06:04,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-15 17:06:04,116 INFO L87 Difference]: Start difference. First operand 3290 states and 11077 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:06,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:06,838 INFO L93 Difference]: Finished difference Result 6515 states and 22109 transitions. [2022-03-15 17:06:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 17:06:06,839 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:06,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:06,878 INFO L225 Difference]: With dead ends: 6515 [2022-03-15 17:06:06,878 INFO L226 Difference]: Without dead ends: 6448 [2022-03-15 17:06:06,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=319, Invalid=3221, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:06:06,880 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 437 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:06,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2263 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:06:06,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6448 states. [2022-03-15 17:06:06,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6448 to 3506. [2022-03-15 17:06:06,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3506 states, 3505 states have (on average 3.3703281027104137) internal successors, (11813), 3505 states have internal predecessors, (11813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:06,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3506 states to 3506 states and 11813 transitions. [2022-03-15 17:06:06,992 INFO L78 Accepts]: Start accepts. Automaton has 3506 states and 11813 transitions. Word has length 39 [2022-03-15 17:06:06,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:06,993 INFO L470 AbstractCegarLoop]: Abstraction has 3506 states and 11813 transitions. [2022-03-15 17:06:06,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:06,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3506 states and 11813 transitions. [2022-03-15 17:06:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:07,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:07,003 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] [2022-03-15 17:06:07,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 17:06:07,003 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:07,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:07,004 INFO L85 PathProgramCache]: Analyzing trace with hash 906311706, now seen corresponding path program 4 times [2022-03-15 17:06:07,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:07,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346774593] [2022-03-15 17:06:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:07,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:07,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:07,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346774593] [2022-03-15 17:06:07,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346774593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:07,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:07,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 17:06:07,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70142426] [2022-03-15 17:06:07,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:07,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 17:06:07,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 17:06:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-15 17:06:07,350 INFO L87 Difference]: Start difference. First operand 3506 states and 11813 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:10,910 INFO L93 Difference]: Finished difference Result 8000 states and 27131 transitions. [2022-03-15 17:06:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-15 17:06:10,910 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:10,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:10,942 INFO L225 Difference]: With dead ends: 8000 [2022-03-15 17:06:10,942 INFO L226 Difference]: Without dead ends: 7957 [2022-03-15 17:06:10,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2118 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=558, Invalid=6084, Unknown=0, NotChecked=0, Total=6642 [2022-03-15 17:06:10,945 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 549 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 3633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:10,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 2592 Invalid, 3633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:06:10,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7957 states. [2022-03-15 17:06:11,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7957 to 3706. [2022-03-15 17:06:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3705 states have (on average 3.3748987854251014) internal successors, (12504), 3705 states have internal predecessors, (12504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:11,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 12504 transitions. [2022-03-15 17:06:11,097 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 12504 transitions. Word has length 39 [2022-03-15 17:06:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:11,097 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 12504 transitions. [2022-03-15 17:06:11,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:11,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 12504 transitions. [2022-03-15 17:06:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:11,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:11,117 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] [2022-03-15 17:06:11,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 17:06:11,117 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:11,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:11,119 INFO L85 PathProgramCache]: Analyzing trace with hash -874286596, now seen corresponding path program 5 times [2022-03-15 17:06:11,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:11,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950934307] [2022-03-15 17:06:11,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:11,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:11,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:11,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950934307] [2022-03-15 17:06:11,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950934307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:11,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:11,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 17:06:11,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557976537] [2022-03-15 17:06:11,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:11,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 17:06:11,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:11,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 17:06:11,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-15 17:06:11,431 INFO L87 Difference]: Start difference. First operand 3706 states and 12504 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:14,497 INFO L93 Difference]: Finished difference Result 8573 states and 29254 transitions. [2022-03-15 17:06:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-15 17:06:14,497 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:14,527 INFO L225 Difference]: With dead ends: 8573 [2022-03-15 17:06:14,528 INFO L226 Difference]: Without dead ends: 8509 [2022-03-15 17:06:14,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2177 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=568, Invalid=6238, Unknown=0, NotChecked=0, Total=6806 [2022-03-15 17:06:14,530 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 565 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 3634 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 3634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:14,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2561 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 3634 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:06:14,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2022-03-15 17:06:14,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 3688. [2022-03-15 17:06:14,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3688 states, 3687 states have (on average 3.375915378356387) internal successors, (12447), 3687 states have internal predecessors, (12447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:14,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 12447 transitions. [2022-03-15 17:06:14,663 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 12447 transitions. Word has length 39 [2022-03-15 17:06:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:14,731 INFO L470 AbstractCegarLoop]: Abstraction has 3688 states and 12447 transitions. [2022-03-15 17:06:14,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 12447 transitions. [2022-03-15 17:06:14,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:14,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:14,739 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] [2022-03-15 17:06:14,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 17:06:14,740 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:14,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:14,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1283102212, now seen corresponding path program 6 times [2022-03-15 17:06:14,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:14,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746071725] [2022-03-15 17:06:14,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:14,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:15,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:15,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:15,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746071725] [2022-03-15 17:06:15,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746071725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:15,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:15,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 17:06:15,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320839560] [2022-03-15 17:06:15,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:15,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 17:06:15,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:15,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 17:06:15,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-15 17:06:15,077 INFO L87 Difference]: Start difference. First operand 3688 states and 12447 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:18,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:18,307 INFO L93 Difference]: Finished difference Result 8145 states and 27755 transitions. [2022-03-15 17:06:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-15 17:06:18,307 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:18,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:18,333 INFO L225 Difference]: With dead ends: 8145 [2022-03-15 17:06:18,334 INFO L226 Difference]: Without dead ends: 8015 [2022-03-15 17:06:18,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2505 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=626, Invalid=7030, Unknown=0, NotChecked=0, Total=7656 [2022-03-15 17:06:18,336 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 569 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 4076 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 4172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:18,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 2840 Invalid, 4172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 4076 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:06:18,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8015 states. [2022-03-15 17:06:18,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8015 to 3664. [2022-03-15 17:06:18,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 3663 states have (on average 3.375102375102375) internal successors, (12363), 3663 states have internal predecessors, (12363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 12363 transitions. [2022-03-15 17:06:18,460 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 12363 transitions. Word has length 39 [2022-03-15 17:06:18,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:18,461 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 12363 transitions. [2022-03-15 17:06:18,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:18,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 12363 transitions. [2022-03-15 17:06:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:18,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:18,471 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] [2022-03-15 17:06:18,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 17:06:18,471 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:18,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:18,472 INFO L85 PathProgramCache]: Analyzing trace with hash 554849640, now seen corresponding path program 7 times [2022-03-15 17:06:18,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:18,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913478381] [2022-03-15 17:06:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:18,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:18,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:18,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:18,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913478381] [2022-03-15 17:06:18,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913478381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:18,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:18,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:18,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419833292] [2022-03-15 17:06:18,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:18,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:18,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:18,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:18,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:18,797 INFO L87 Difference]: Start difference. First operand 3664 states and 12363 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:21,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:21,036 INFO L93 Difference]: Finished difference Result 6771 states and 22942 transitions. [2022-03-15 17:06:21,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-15 17:06:21,037 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:21,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:21,057 INFO L225 Difference]: With dead ends: 6771 [2022-03-15 17:06:21,057 INFO L226 Difference]: Without dead ends: 6704 [2022-03-15 17:06:21,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=371, Invalid=4051, Unknown=0, NotChecked=0, Total=4422 [2022-03-15 17:06:21,059 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 449 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:21,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 2542 Invalid, 3204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3149 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:06:21,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2022-03-15 17:06:21,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 3680. [2022-03-15 17:06:21,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.371296547974993) internal successors, (12403), 3679 states have internal predecessors, (12403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:21,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12403 transitions. [2022-03-15 17:06:21,177 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12403 transitions. Word has length 39 [2022-03-15 17:06:21,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:21,177 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12403 transitions. [2022-03-15 17:06:21,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:21,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12403 transitions. [2022-03-15 17:06:21,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:21,186 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:21,186 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] [2022-03-15 17:06:21,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 17:06:21,186 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:21,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:21,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1164766330, now seen corresponding path program 8 times [2022-03-15 17:06:21,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:21,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518205130] [2022-03-15 17:06:21,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:21,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:21,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:21,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:21,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518205130] [2022-03-15 17:06:21,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518205130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:21,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:21,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:21,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150749727] [2022-03-15 17:06:21,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:21,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:21,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:21,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:21,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:21,492 INFO L87 Difference]: Start difference. First operand 3680 states and 12403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:24,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:24,734 INFO L93 Difference]: Finished difference Result 8010 states and 27138 transitions. [2022-03-15 17:06:24,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-15 17:06:24,735 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:24,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:24,756 INFO L225 Difference]: With dead ends: 8010 [2022-03-15 17:06:24,756 INFO L226 Difference]: Without dead ends: 7967 [2022-03-15 17:06:24,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2522 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=617, Invalid=7215, Unknown=0, NotChecked=0, Total=7832 [2022-03-15 17:06:24,758 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 560 mSDsluCounter, 2976 mSDsCounter, 0 mSdLazyCounter, 3890 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 3980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 3890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:24,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 2916 Invalid, 3980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 3890 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:06:24,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7967 states. [2022-03-15 17:06:24,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7967 to 3702. [2022-03-15 17:06:24,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3702 states, 3701 states have (on average 3.368819238043772) internal successors, (12468), 3701 states have internal predecessors, (12468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 12468 transitions. [2022-03-15 17:06:24,863 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 12468 transitions. Word has length 39 [2022-03-15 17:06:24,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:24,863 INFO L470 AbstractCegarLoop]: Abstraction has 3702 states and 12468 transitions. [2022-03-15 17:06:24,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:24,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 12468 transitions. [2022-03-15 17:06:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:24,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:24,872 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] [2022-03-15 17:06:24,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 17:06:24,872 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:24,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:24,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1349602664, now seen corresponding path program 9 times [2022-03-15 17:06:24,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:24,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786625540] [2022-03-15 17:06:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:24,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:25,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:25,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:25,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786625540] [2022-03-15 17:06:25,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786625540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:25,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:25,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:25,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662559417] [2022-03-15 17:06:25,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:25,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:25,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:25,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:25,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:25,175 INFO L87 Difference]: Start difference. First operand 3702 states and 12468 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:28,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:28,369 INFO L93 Difference]: Finished difference Result 8583 states and 29261 transitions. [2022-03-15 17:06:28,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-15 17:06:28,370 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:28,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:28,415 INFO L225 Difference]: With dead ends: 8583 [2022-03-15 17:06:28,416 INFO L226 Difference]: Without dead ends: 8519 [2022-03-15 17:06:28,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2448 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=606, Invalid=7050, Unknown=0, NotChecked=0, Total=7656 [2022-03-15 17:06:28,417 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 574 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 3958 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 4068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 3958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:28,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 2850 Invalid, 4068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 3958 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:06:28,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8519 states. [2022-03-15 17:06:28,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8519 to 3672. [2022-03-15 17:06:28,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3671 states have (on average 3.374284935984745) internal successors, (12387), 3671 states have internal predecessors, (12387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 12387 transitions. [2022-03-15 17:06:28,524 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 12387 transitions. Word has length 39 [2022-03-15 17:06:28,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:28,524 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 12387 transitions. [2022-03-15 17:06:28,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:28,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 12387 transitions. [2022-03-15 17:06:28,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:28,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:28,533 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] [2022-03-15 17:06:28,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 17:06:28,534 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:28,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:28,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1970037064, now seen corresponding path program 10 times [2022-03-15 17:06:28,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:28,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765991661] [2022-03-15 17:06:28,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:28,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:28,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:28,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:28,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765991661] [2022-03-15 17:06:28,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765991661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:28,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:28,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:28,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739712015] [2022-03-15 17:06:28,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:28,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:28,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:28,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:28,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:28,837 INFO L87 Difference]: Start difference. First operand 3672 states and 12387 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:30,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:30,261 INFO L93 Difference]: Finished difference Result 5369 states and 18355 transitions. [2022-03-15 17:06:30,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 17:06:30,262 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:30,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:30,276 INFO L225 Difference]: With dead ends: 5369 [2022-03-15 17:06:30,277 INFO L226 Difference]: Without dead ends: 5302 [2022-03-15 17:06:30,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 17:06:30,278 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 324 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 2145 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:30,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 1508 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2145 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:06:30,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-03-15 17:06:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 3680. [2022-03-15 17:06:30,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.371296547974993) internal successors, (12403), 3679 states have internal predecessors, (12403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12403 transitions. [2022-03-15 17:06:30,368 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12403 transitions. Word has length 39 [2022-03-15 17:06:30,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:30,368 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12403 transitions. [2022-03-15 17:06:30,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:30,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12403 transitions. [2022-03-15 17:06:30,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:30,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:30,376 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] [2022-03-15 17:06:30,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 17:06:30,376 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:30,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:30,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1839442216, now seen corresponding path program 11 times [2022-03-15 17:06:30,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:30,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300804040] [2022-03-15 17:06:30,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:30,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:30,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:30,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300804040] [2022-03-15 17:06:30,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300804040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:30,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:30,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:30,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543860403] [2022-03-15 17:06:30,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:30,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:30,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:30,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:30,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:30,674 INFO L87 Difference]: Start difference. First operand 3680 states and 12403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:32,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:32,024 INFO L93 Difference]: Finished difference Result 5357 states and 18315 transitions. [2022-03-15 17:06:32,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-15 17:06:32,024 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:32,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:32,036 INFO L225 Difference]: With dead ends: 5357 [2022-03-15 17:06:32,036 INFO L226 Difference]: Without dead ends: 5294 [2022-03-15 17:06:32,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 17:06:32,037 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 338 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:32,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 1519 Invalid, 2173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:06:32,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-03-15 17:06:32,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 3672. [2022-03-15 17:06:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3671 states have (on average 3.3731953146281666) internal successors, (12383), 3671 states have internal predecessors, (12383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:32,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 12383 transitions. [2022-03-15 17:06:32,124 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 12383 transitions. Word has length 39 [2022-03-15 17:06:32,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:32,124 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 12383 transitions. [2022-03-15 17:06:32,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:32,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 12383 transitions. [2022-03-15 17:06:32,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:32,132 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:32,132 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] [2022-03-15 17:06:32,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 17:06:32,133 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:32,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:32,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1703763624, now seen corresponding path program 12 times [2022-03-15 17:06:32,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:32,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592251457] [2022-03-15 17:06:32,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:32,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:32,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:32,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:32,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592251457] [2022-03-15 17:06:32,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592251457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:32,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:32,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:32,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416395487] [2022-03-15 17:06:32,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:32,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:32,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:32,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:32,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:32,419 INFO L87 Difference]: Start difference. First operand 3672 states and 12383 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:34,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:34,363 INFO L93 Difference]: Finished difference Result 5886 states and 20058 transitions. [2022-03-15 17:06:34,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-15 17:06:34,364 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:34,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:34,378 INFO L225 Difference]: With dead ends: 5886 [2022-03-15 17:06:34,378 INFO L226 Difference]: Without dead ends: 5843 [2022-03-15 17:06:34,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=372, Invalid=3788, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 17:06:34,380 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 455 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:34,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 1668 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:06:34,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2022-03-15 17:06:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 3680. [2022-03-15 17:06:34,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.371296547974993) internal successors, (12403), 3679 states have internal predecessors, (12403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12403 transitions. [2022-03-15 17:06:34,473 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12403 transitions. Word has length 39 [2022-03-15 17:06:34,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:34,473 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12403 transitions. [2022-03-15 17:06:34,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12403 transitions. [2022-03-15 17:06:34,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:34,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:34,482 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] [2022-03-15 17:06:34,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 17:06:34,482 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:34,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:34,483 INFO L85 PathProgramCache]: Analyzing trace with hash -76834678, now seen corresponding path program 13 times [2022-03-15 17:06:34,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:34,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350418076] [2022-03-15 17:06:34,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:34,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:34,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:34,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:34,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350418076] [2022-03-15 17:06:34,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350418076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:34,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:34,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:34,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501623972] [2022-03-15 17:06:34,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:34,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:34,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:34,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:34,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:34,779 INFO L87 Difference]: Start difference. First operand 3680 states and 12403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:37,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:37,003 INFO L93 Difference]: Finished difference Result 6732 states and 22949 transitions. [2022-03-15 17:06:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-15 17:06:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:37,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:37,018 INFO L225 Difference]: With dead ends: 6732 [2022-03-15 17:06:37,018 INFO L226 Difference]: Without dead ends: 6680 [2022-03-15 17:06:37,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1378 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=407, Invalid=4423, Unknown=0, NotChecked=0, Total=4830 [2022-03-15 17:06:37,020 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 497 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 2756 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:37,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 1983 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2756 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:06:37,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2022-03-15 17:06:37,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 3674. [2022-03-15 17:06:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3727198475360742) internal successors, (12388), 3673 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:37,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12388 transitions. [2022-03-15 17:06:37,119 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12388 transitions. Word has length 39 [2022-03-15 17:06:37,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:37,119 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12388 transitions. [2022-03-15 17:06:37,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12388 transitions. [2022-03-15 17:06:37,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:37,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:37,128 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] [2022-03-15 17:06:37,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 17:06:37,128 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:37,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:37,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1672720102, now seen corresponding path program 14 times [2022-03-15 17:06:37,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:37,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104512427] [2022-03-15 17:06:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:37,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:37,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:37,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104512427] [2022-03-15 17:06:37,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104512427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:37,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:37,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:37,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864971637] [2022-03-15 17:06:37,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:37,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:37,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:37,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:37,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:37,438 INFO L87 Difference]: Start difference. First operand 3674 states and 12388 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:38,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:38,855 INFO L93 Difference]: Finished difference Result 5446 states and 18508 transitions. [2022-03-15 17:06:38,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 17:06:38,855 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:38,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:38,866 INFO L225 Difference]: With dead ends: 5446 [2022-03-15 17:06:38,866 INFO L226 Difference]: Without dead ends: 5391 [2022-03-15 17:06:38,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=240, Invalid=2210, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 17:06:38,867 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 367 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:38,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1515 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:06:38,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5391 states. [2022-03-15 17:06:38,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5391 to 3676. [2022-03-15 17:06:38,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3675 states have (on average 3.371700680272109) internal successors, (12391), 3675 states have internal predecessors, (12391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12391 transitions. [2022-03-15 17:06:38,967 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12391 transitions. Word has length 39 [2022-03-15 17:06:38,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:38,968 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12391 transitions. [2022-03-15 17:06:38,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12391 transitions. [2022-03-15 17:06:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:38,976 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:38,976 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] [2022-03-15 17:06:38,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 17:06:38,977 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:38,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:38,977 INFO L85 PathProgramCache]: Analyzing trace with hash -500067880, now seen corresponding path program 15 times [2022-03-15 17:06:38,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:38,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351772236] [2022-03-15 17:06:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:38,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:39,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:39,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351772236] [2022-03-15 17:06:39,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351772236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:39,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:39,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:39,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176890983] [2022-03-15 17:06:39,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:39,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:39,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:39,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:39,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:39,274 INFO L87 Difference]: Start difference. First operand 3676 states and 12391 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:40,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:40,860 INFO L93 Difference]: Finished difference Result 6214 states and 21239 transitions. [2022-03-15 17:06:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 17:06:40,860 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:40,872 INFO L225 Difference]: With dead ends: 6214 [2022-03-15 17:06:40,872 INFO L226 Difference]: Without dead ends: 6150 [2022-03-15 17:06:40,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=267, Invalid=2595, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:06:40,874 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 364 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:40,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1854 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:06:40,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2022-03-15 17:06:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 3670. [2022-03-15 17:06:40,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 3669 states have (on average 3.373671300081766) internal successors, (12378), 3669 states have internal predecessors, (12378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:40,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 12378 transitions. [2022-03-15 17:06:40,953 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 12378 transitions. Word has length 39 [2022-03-15 17:06:40,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:40,954 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 12378 transitions. [2022-03-15 17:06:40,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 12378 transitions. [2022-03-15 17:06:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:40,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:40,962 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] [2022-03-15 17:06:40,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 17:06:40,962 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:40,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1741980442, now seen corresponding path program 16 times [2022-03-15 17:06:40,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:40,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926859267] [2022-03-15 17:06:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:40,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:41,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:41,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926859267] [2022-03-15 17:06:41,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926859267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:41,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:41,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:41,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491664159] [2022-03-15 17:06:41,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:41,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:41,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:41,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:41,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:41,252 INFO L87 Difference]: Start difference. First operand 3670 states and 12378 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:44,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:44,747 INFO L93 Difference]: Finished difference Result 8269 states and 28029 transitions. [2022-03-15 17:06:44,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-15 17:06:44,747 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:44,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:44,765 INFO L225 Difference]: With dead ends: 8269 [2022-03-15 17:06:44,765 INFO L226 Difference]: Without dead ends: 8132 [2022-03-15 17:06:44,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2947 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=681, Invalid=8249, Unknown=0, NotChecked=0, Total=8930 [2022-03-15 17:06:44,767 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 618 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 4565 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 4673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 4565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:44,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 3195 Invalid, 4673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 4565 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:06:44,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8132 states. [2022-03-15 17:06:44,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8132 to 3674. [2022-03-15 17:06:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3727198475360742) internal successors, (12388), 3673 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12388 transitions. [2022-03-15 17:06:44,846 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12388 transitions. Word has length 39 [2022-03-15 17:06:44,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:44,846 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12388 transitions. [2022-03-15 17:06:44,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:44,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12388 transitions. [2022-03-15 17:06:44,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:44,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:44,853 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] [2022-03-15 17:06:44,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 17:06:44,853 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:44,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:44,854 INFO L85 PathProgramCache]: Analyzing trace with hash 247089542, now seen corresponding path program 17 times [2022-03-15 17:06:44,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:44,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164513664] [2022-03-15 17:06:44,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:44,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:45,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:45,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:45,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164513664] [2022-03-15 17:06:45,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164513664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:45,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:45,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:45,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407893858] [2022-03-15 17:06:45,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:45,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:45,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:45,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:45,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:45,121 INFO L87 Difference]: Start difference. First operand 3674 states and 12388 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:46,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:46,991 INFO L93 Difference]: Finished difference Result 5915 states and 20130 transitions. [2022-03-15 17:06:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-15 17:06:46,992 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:46,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:47,004 INFO L225 Difference]: With dead ends: 5915 [2022-03-15 17:06:47,004 INFO L226 Difference]: Without dead ends: 5851 [2022-03-15 17:06:47,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=347, Invalid=3559, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 17:06:47,005 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 457 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:47,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1650 Invalid, 2571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:06:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2022-03-15 17:06:47,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 3674. [2022-03-15 17:06:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3727198475360742) internal successors, (12388), 3673 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12388 transitions. [2022-03-15 17:06:47,072 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12388 transitions. Word has length 39 [2022-03-15 17:06:47,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:47,072 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12388 transitions. [2022-03-15 17:06:47,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:47,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12388 transitions. [2022-03-15 17:06:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:47,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:47,077 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] [2022-03-15 17:06:47,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 17:06:47,077 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:47,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:47,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1165573112, now seen corresponding path program 18 times [2022-03-15 17:06:47,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:47,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095242543] [2022-03-15 17:06:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:47,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:47,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:47,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:47,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095242543] [2022-03-15 17:06:47,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095242543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:47,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:47,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:47,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234038414] [2022-03-15 17:06:47,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:47,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:47,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:47,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:47,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:47,365 INFO L87 Difference]: Start difference. First operand 3674 states and 12388 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:48,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:48,762 INFO L93 Difference]: Finished difference Result 5506 states and 18666 transitions. [2022-03-15 17:06:48,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:06:48,762 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:48,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:48,773 INFO L225 Difference]: With dead ends: 5506 [2022-03-15 17:06:48,773 INFO L226 Difference]: Without dead ends: 5451 [2022-03-15 17:06:48,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=2130, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 17:06:48,774 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 366 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:48,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1583 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:06:48,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2022-03-15 17:06:48,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 3680. [2022-03-15 17:06:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.3707529219896712) internal successors, (12401), 3679 states have internal predecessors, (12401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:48,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12401 transitions. [2022-03-15 17:06:48,841 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12401 transitions. Word has length 39 [2022-03-15 17:06:48,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:48,841 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12401 transitions. [2022-03-15 17:06:48,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:48,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12401 transitions. [2022-03-15 17:06:48,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:48,848 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:48,848 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] [2022-03-15 17:06:48,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 17:06:48,848 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:48,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:48,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1956741962, now seen corresponding path program 19 times [2022-03-15 17:06:48,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:48,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189653883] [2022-03-15 17:06:48,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:48,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:49,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:49,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189653883] [2022-03-15 17:06:49,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189653883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:49,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:49,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:49,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825541799] [2022-03-15 17:06:49,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:49,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:49,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:49,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:49,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:49,103 INFO L87 Difference]: Start difference. First operand 3680 states and 12401 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:50,741 INFO L93 Difference]: Finished difference Result 6334 states and 21534 transitions. [2022-03-15 17:06:50,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:06:50,742 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:50,754 INFO L225 Difference]: With dead ends: 6334 [2022-03-15 17:06:50,754 INFO L226 Difference]: Without dead ends: 6274 [2022-03-15 17:06:50,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=268, Invalid=2702, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 17:06:50,755 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 408 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:50,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1857 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:06:50,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6274 states. [2022-03-15 17:06:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6274 to 3678. [2022-03-15 17:06:50,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 3677 states have (on average 3.3712265433777535) internal successors, (12396), 3677 states have internal predecessors, (12396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 12396 transitions. [2022-03-15 17:06:50,818 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 12396 transitions. Word has length 39 [2022-03-15 17:06:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:50,818 INFO L470 AbstractCegarLoop]: Abstraction has 3678 states and 12396 transitions. [2022-03-15 17:06:50,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 12396 transitions. [2022-03-15 17:06:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:50,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:50,823 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] [2022-03-15 17:06:50,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 17:06:50,823 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:50,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash 258658792, now seen corresponding path program 20 times [2022-03-15 17:06:50,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:50,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131645205] [2022-03-15 17:06:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:50,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:51,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:51,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131645205] [2022-03-15 17:06:51,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131645205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:51,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:51,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 17:06:51,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289975370] [2022-03-15 17:06:51,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:51,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 17:06:51,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:51,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 17:06:51,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-15 17:06:51,067 INFO L87 Difference]: Start difference. First operand 3678 states and 12396 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:52,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:52,562 INFO L93 Difference]: Finished difference Result 6245 states and 21321 transitions. [2022-03-15 17:06:52,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 17:06:52,562 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:52,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:52,574 INFO L225 Difference]: With dead ends: 6245 [2022-03-15 17:06:52,574 INFO L226 Difference]: Without dead ends: 6169 [2022-03-15 17:06:52,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=243, Invalid=2307, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 17:06:52,575 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 362 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:52,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1691 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:06:52,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-03-15 17:06:52,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 3686. [2022-03-15 17:06:52,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3686 states, 3685 states have (on average 3.368249660786974) internal successors, (12412), 3685 states have internal predecessors, (12412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:52,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 12412 transitions. [2022-03-15 17:06:52,661 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 12412 transitions. Word has length 39 [2022-03-15 17:06:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:52,661 INFO L470 AbstractCegarLoop]: Abstraction has 3686 states and 12412 transitions. [2022-03-15 17:06:52,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:52,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 12412 transitions. [2022-03-15 17:06:52,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:52,666 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:52,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:06:52,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 17:06:52,666 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:52,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:52,667 INFO L85 PathProgramCache]: Analyzing trace with hash -759394820, now seen corresponding path program 21 times [2022-03-15 17:06:52,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:52,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070892380] [2022-03-15 17:06:52,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:52,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:52,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:52,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:52,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070892380] [2022-03-15 17:06:52,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070892380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:52,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:52,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:52,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202595632] [2022-03-15 17:06:52,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:52,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:52,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:52,976 INFO L87 Difference]: Start difference. First operand 3686 states and 12412 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:54,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:54,594 INFO L93 Difference]: Finished difference Result 6227 states and 21267 transitions. [2022-03-15 17:06:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:06:54,595 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:54,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:54,610 INFO L225 Difference]: With dead ends: 6227 [2022-03-15 17:06:54,611 INFO L226 Difference]: Without dead ends: 6149 [2022-03-15 17:06:54,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=259, Invalid=2603, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:06:54,612 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 393 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:54,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [393 Valid, 1850 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:06:54,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6149 states. [2022-03-15 17:06:54,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6149 to 3666. [2022-03-15 17:06:54,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3665 states have (on average 3.3735334242837656) internal successors, (12364), 3665 states have internal predecessors, (12364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 12364 transitions. [2022-03-15 17:06:54,673 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 12364 transitions. Word has length 39 [2022-03-15 17:06:54,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:54,673 INFO L470 AbstractCegarLoop]: Abstraction has 3666 states and 12364 transitions. [2022-03-15 17:06:54,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:54,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 12364 transitions. [2022-03-15 17:06:54,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:54,679 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:54,679 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] [2022-03-15 17:06:54,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 17:06:54,679 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:54,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:54,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1124716894, now seen corresponding path program 22 times [2022-03-15 17:06:54,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:54,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578768921] [2022-03-15 17:06:54,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:54,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:54,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:54,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578768921] [2022-03-15 17:06:54,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578768921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:54,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:54,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:54,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866009954] [2022-03-15 17:06:54,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:54,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:54,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:54,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:54,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:54,966 INFO L87 Difference]: Start difference. First operand 3666 states and 12364 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:57,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:06:57,197 INFO L93 Difference]: Finished difference Result 6811 states and 23006 transitions. [2022-03-15 17:06:57,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-15 17:06:57,197 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:06:57,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:06:57,212 INFO L225 Difference]: With dead ends: 6811 [2022-03-15 17:06:57,212 INFO L226 Difference]: Without dead ends: 6744 [2022-03-15 17:06:57,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1119 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=354, Invalid=3806, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 17:06:57,213 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 461 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 3317 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:06:57,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 2653 Invalid, 3369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3317 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:06:57,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2022-03-15 17:06:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 3744. [2022-03-15 17:06:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 3743 states have (on average 3.3745658562650283) internal successors, (12631), 3743 states have internal predecessors, (12631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 12631 transitions. [2022-03-15 17:06:57,276 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 12631 transitions. Word has length 39 [2022-03-15 17:06:57,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:06:57,277 INFO L470 AbstractCegarLoop]: Abstraction has 3744 states and 12631 transitions. [2022-03-15 17:06:57,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:06:57,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 12631 transitions. [2022-03-15 17:06:57,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:06:57,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:06:57,282 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] [2022-03-15 17:06:57,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 17:06:57,282 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:06:57,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:06:57,283 INFO L85 PathProgramCache]: Analyzing trace with hash -594899076, now seen corresponding path program 23 times [2022-03-15 17:06:57,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:06:57,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846376988] [2022-03-15 17:06:57,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:06:57,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:06:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:06:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:06:57,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:06:57,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846376988] [2022-03-15 17:06:57,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846376988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:06:57,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:06:57,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:06:57,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645081188] [2022-03-15 17:06:57,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:06:57,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:06:57,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:06:57,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:06:57,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:06:57,570 INFO L87 Difference]: Start difference. First operand 3744 states and 12631 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:00,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:00,599 INFO L93 Difference]: Finished difference Result 8158 states and 27612 transitions. [2022-03-15 17:07:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-03-15 17:07:00,599 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:00,615 INFO L225 Difference]: With dead ends: 8158 [2022-03-15 17:07:00,615 INFO L226 Difference]: Without dead ends: 8115 [2022-03-15 17:07:00,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2311 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=586, Invalid=6724, Unknown=0, NotChecked=0, Total=7310 [2022-03-15 17:07:00,616 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 570 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 4117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:00,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 3010 Invalid, 4117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:07:00,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-03-15 17:07:00,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 3846. [2022-03-15 17:07:00,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 3845 states have (on average 3.376332899869961) internal successors, (12982), 3845 states have internal predecessors, (12982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:00,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 12982 transitions. [2022-03-15 17:07:00,686 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 12982 transitions. Word has length 39 [2022-03-15 17:07:00,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:00,686 INFO L470 AbstractCegarLoop]: Abstraction has 3846 states and 12982 transitions. [2022-03-15 17:07:00,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:00,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 12982 transitions. [2022-03-15 17:07:00,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:00,691 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:00,691 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] [2022-03-15 17:07:00,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 17:07:00,691 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:00,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:00,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1919469918, now seen corresponding path program 24 times [2022-03-15 17:07:00,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:00,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797057739] [2022-03-15 17:07:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:00,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:00,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:00,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:00,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797057739] [2022-03-15 17:07:00,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797057739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:00,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:00,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:00,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041174293] [2022-03-15 17:07:00,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:00,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:00,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:00,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:00,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:00,946 INFO L87 Difference]: Start difference. First operand 3846 states and 12982 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:04,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:04,037 INFO L93 Difference]: Finished difference Result 8413 states and 28598 transitions. [2022-03-15 17:07:04,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-15 17:07:04,037 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:04,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:04,056 INFO L225 Difference]: With dead ends: 8413 [2022-03-15 17:07:04,056 INFO L226 Difference]: Without dead ends: 8349 [2022-03-15 17:07:04,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2306 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=585, Invalid=6725, Unknown=0, NotChecked=0, Total=7310 [2022-03-15 17:07:04,057 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 571 mSDsluCounter, 2998 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 4202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:04,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 2962 Invalid, 4202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 4092 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:07:04,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8349 states. [2022-03-15 17:07:04,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8349 to 3816. [2022-03-15 17:07:04,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3816 states, 3815 states have (on average 3.381651376146789) internal successors, (12901), 3815 states have internal predecessors, (12901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:04,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3816 states to 3816 states and 12901 transitions. [2022-03-15 17:07:04,133 INFO L78 Accepts]: Start accepts. Automaton has 3816 states and 12901 transitions. Word has length 39 [2022-03-15 17:07:04,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:04,133 INFO L470 AbstractCegarLoop]: Abstraction has 3816 states and 12901 transitions. [2022-03-15 17:07:04,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:04,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3816 states and 12901 transitions. [2022-03-15 17:07:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:04,138 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:04,138 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] [2022-03-15 17:07:04,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 17:07:04,138 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:04,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:04,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1755062978, now seen corresponding path program 25 times [2022-03-15 17:07:04,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:04,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670730964] [2022-03-15 17:07:04,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:04,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:04,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:04,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:04,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670730964] [2022-03-15 17:07:04,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670730964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:04,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:04,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:04,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603783834] [2022-03-15 17:07:04,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:04,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:04,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:04,424 INFO L87 Difference]: Start difference. First operand 3816 states and 12901 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:05,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:05,755 INFO L93 Difference]: Finished difference Result 5619 states and 19160 transitions. [2022-03-15 17:07:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-15 17:07:05,756 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:05,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:05,767 INFO L225 Difference]: With dead ends: 5619 [2022-03-15 17:07:05,767 INFO L226 Difference]: Without dead ends: 5552 [2022-03-15 17:07:05,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 17:07:05,768 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 342 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:05,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 1609 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:07:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2022-03-15 17:07:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 3844. [2022-03-15 17:07:05,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3844 states, 3843 states have (on average 3.3778298204527712) internal successors, (12981), 3843 states have internal predecessors, (12981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:05,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 12981 transitions. [2022-03-15 17:07:05,832 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 12981 transitions. Word has length 39 [2022-03-15 17:07:05,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:05,832 INFO L470 AbstractCegarLoop]: Abstraction has 3844 states and 12981 transitions. [2022-03-15 17:07:05,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:05,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 12981 transitions. [2022-03-15 17:07:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:05,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:05,837 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] [2022-03-15 17:07:05,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 17:07:05,838 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:05,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1885657826, now seen corresponding path program 26 times [2022-03-15 17:07:05,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:05,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518244207] [2022-03-15 17:07:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:05,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:06,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:06,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:06,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518244207] [2022-03-15 17:07:06,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518244207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:06,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:06,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:06,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35510749] [2022-03-15 17:07:06,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:06,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:06,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:06,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:06,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:06,101 INFO L87 Difference]: Start difference. First operand 3844 states and 12981 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:07,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:07,488 INFO L93 Difference]: Finished difference Result 5607 states and 19120 transitions. [2022-03-15 17:07:07,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:07:07,488 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:07,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:07,499 INFO L225 Difference]: With dead ends: 5607 [2022-03-15 17:07:07,499 INFO L226 Difference]: Without dead ends: 5544 [2022-03-15 17:07:07,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=2037, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 17:07:07,500 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 348 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:07,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 1633 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:07:07,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2022-03-15 17:07:07,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 3836. [2022-03-15 17:07:07,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3836 states, 3835 states have (on average 3.3796610169491523) internal successors, (12961), 3835 states have internal predecessors, (12961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:07,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 12961 transitions. [2022-03-15 17:07:07,560 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 12961 transitions. Word has length 39 [2022-03-15 17:07:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:07,560 INFO L470 AbstractCegarLoop]: Abstraction has 3836 states and 12961 transitions. [2022-03-15 17:07:07,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 12961 transitions. [2022-03-15 17:07:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:07,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:07,565 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] [2022-03-15 17:07:07,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 17:07:07,566 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:07,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:07,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2021336418, now seen corresponding path program 27 times [2022-03-15 17:07:07,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:07,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58661278] [2022-03-15 17:07:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:07,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:07,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:07,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:07,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58661278] [2022-03-15 17:07:07,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58661278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:07,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:07,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:07,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994586027] [2022-03-15 17:07:07,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:07,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:07,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:07,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:07,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:07,804 INFO L87 Difference]: Start difference. First operand 3836 states and 12961 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:09,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:09,822 INFO L93 Difference]: Finished difference Result 6152 states and 20955 transitions. [2022-03-15 17:07:09,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-15 17:07:09,823 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:09,835 INFO L225 Difference]: With dead ends: 6152 [2022-03-15 17:07:09,835 INFO L226 Difference]: Without dead ends: 6109 [2022-03-15 17:07:09,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=367, Invalid=3793, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 17:07:09,836 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 469 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:09,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 1778 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:07:09,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6109 states. [2022-03-15 17:07:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6109 to 3864. [2022-03-15 17:07:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 3863 states have (on average 3.3779446026404347) internal successors, (13049), 3863 states have internal predecessors, (13049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:09,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 13049 transitions. [2022-03-15 17:07:09,926 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 13049 transitions. Word has length 39 [2022-03-15 17:07:09,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:09,926 INFO L470 AbstractCegarLoop]: Abstraction has 3864 states and 13049 transitions. [2022-03-15 17:07:09,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:09,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 13049 transitions. [2022-03-15 17:07:09,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:09,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:09,932 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] [2022-03-15 17:07:09,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 17:07:09,932 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:09,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:09,932 INFO L85 PathProgramCache]: Analyzing trace with hash 493032576, now seen corresponding path program 28 times [2022-03-15 17:07:09,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:09,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19472195] [2022-03-15 17:07:09,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:10,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:10,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19472195] [2022-03-15 17:07:10,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19472195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:10,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:10,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:10,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856343526] [2022-03-15 17:07:10,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:10,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:10,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:10,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:10,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:10,185 INFO L87 Difference]: Start difference. First operand 3864 states and 13049 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:12,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:12,330 INFO L93 Difference]: Finished difference Result 6998 states and 23846 transitions. [2022-03-15 17:07:12,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-15 17:07:12,331 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:12,345 INFO L225 Difference]: With dead ends: 6998 [2022-03-15 17:07:12,345 INFO L226 Difference]: Without dead ends: 6946 [2022-03-15 17:07:12,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=402, Invalid=4428, Unknown=0, NotChecked=0, Total=4830 [2022-03-15 17:07:12,346 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 510 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 2973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:12,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 2093 Invalid, 2973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:07:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2022-03-15 17:07:12,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 3852. [2022-03-15 17:07:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3851 states have (on average 3.379641651519086) internal successors, (13015), 3851 states have internal predecessors, (13015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:12,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 13015 transitions. [2022-03-15 17:07:12,418 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 13015 transitions. Word has length 39 [2022-03-15 17:07:12,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:12,418 INFO L470 AbstractCegarLoop]: Abstraction has 3852 states and 13015 transitions. [2022-03-15 17:07:12,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:12,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 13015 transitions. [2022-03-15 17:07:12,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:12,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:12,424 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] [2022-03-15 17:07:12,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 17:07:12,424 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:12,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:12,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1102852848, now seen corresponding path program 29 times [2022-03-15 17:07:12,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:12,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972302608] [2022-03-15 17:07:12,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:12,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:12,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:12,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:12,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972302608] [2022-03-15 17:07:12,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972302608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:12,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:12,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:12,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602574648] [2022-03-15 17:07:12,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:12,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:12,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:12,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:12,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:12,704 INFO L87 Difference]: Start difference. First operand 3852 states and 13015 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:14,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:14,244 INFO L93 Difference]: Finished difference Result 5751 states and 19448 transitions. [2022-03-15 17:07:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 17:07:14,244 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:14,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:14,256 INFO L225 Difference]: With dead ends: 5751 [2022-03-15 17:07:14,256 INFO L226 Difference]: Without dead ends: 5696 [2022-03-15 17:07:14,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=248, Invalid=2302, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 17:07:14,257 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 375 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:14,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1651 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5696 states. [2022-03-15 17:07:14,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5696 to 3854. [2022-03-15 17:07:14,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.3786659745652736) internal successors, (13018), 3853 states have internal predecessors, (13018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:14,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13018 transitions. [2022-03-15 17:07:14,321 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13018 transitions. Word has length 39 [2022-03-15 17:07:14,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:14,321 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13018 transitions. [2022-03-15 17:07:14,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:14,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13018 transitions. [2022-03-15 17:07:14,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:14,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:14,329 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] [2022-03-15 17:07:14,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 17:07:14,329 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:14,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:14,329 INFO L85 PathProgramCache]: Analyzing trace with hash 69799374, now seen corresponding path program 30 times [2022-03-15 17:07:14,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:14,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566295830] [2022-03-15 17:07:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:14,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:14,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:14,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:14,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566295830] [2022-03-15 17:07:14,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566295830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:14,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:14,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:14,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206498696] [2022-03-15 17:07:14,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:14,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:14,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:14,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:14,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:14,589 INFO L87 Difference]: Start difference. First operand 3854 states and 13018 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:16,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:16,232 INFO L93 Difference]: Finished difference Result 6544 states and 22225 transitions. [2022-03-15 17:07:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 17:07:16,233 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:16,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:16,247 INFO L225 Difference]: With dead ends: 6544 [2022-03-15 17:07:16,247 INFO L226 Difference]: Without dead ends: 6498 [2022-03-15 17:07:16,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=265, Invalid=2597, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:07:16,248 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 398 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 2689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:16,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 1984 Invalid, 2689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2022-03-15 17:07:16,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 3858. [2022-03-15 17:07:16,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3772361939331086) internal successors, (13026), 3857 states have internal predecessors, (13026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:16,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 13026 transitions. [2022-03-15 17:07:16,336 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 13026 transitions. Word has length 39 [2022-03-15 17:07:16,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:16,336 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 13026 transitions. [2022-03-15 17:07:16,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:16,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 13026 transitions. [2022-03-15 17:07:16,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:16,342 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:16,342 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] [2022-03-15 17:07:16,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 17:07:16,342 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:16,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:16,343 INFO L85 PathProgramCache]: Analyzing trace with hash -177666788, now seen corresponding path program 31 times [2022-03-15 17:07:16,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:16,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118133622] [2022-03-15 17:07:16,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:16,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:16,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:16,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118133622] [2022-03-15 17:07:16,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118133622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:16,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:16,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:16,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231368842] [2022-03-15 17:07:16,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:16,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:16,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:16,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:16,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:16,625 INFO L87 Difference]: Start difference. First operand 3858 states and 13026 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:18,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:18,192 INFO L93 Difference]: Finished difference Result 5686 states and 19337 transitions. [2022-03-15 17:07:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 17:07:18,192 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:18,204 INFO L225 Difference]: With dead ends: 5686 [2022-03-15 17:07:18,204 INFO L226 Difference]: Without dead ends: 5637 [2022-03-15 17:07:18,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=258, Invalid=2394, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:07:18,205 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 366 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:18,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1734 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:18,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5637 states. [2022-03-15 17:07:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5637 to 3848. [2022-03-15 17:07:18,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.3805562776189237) internal successors, (13005), 3847 states have internal predecessors, (13005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:18,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 13005 transitions. [2022-03-15 17:07:18,283 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 13005 transitions. Word has length 39 [2022-03-15 17:07:18,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:18,284 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 13005 transitions. [2022-03-15 17:07:18,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:18,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 13005 transitions. [2022-03-15 17:07:18,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:18,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:18,291 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] [2022-03-15 17:07:18,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 17:07:18,292 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:18,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:18,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1361208734, now seen corresponding path program 32 times [2022-03-15 17:07:18,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:18,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433037287] [2022-03-15 17:07:18,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:18,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:18,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:18,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:18,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433037287] [2022-03-15 17:07:18,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433037287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:18,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:18,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:18,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317051685] [2022-03-15 17:07:18,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:18,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:18,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:18,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:18,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:18,578 INFO L87 Difference]: Start difference. First operand 3848 states and 13005 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:19,944 INFO L93 Difference]: Finished difference Result 5607 states and 19154 transitions. [2022-03-15 17:07:19,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 17:07:19,945 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:19,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:19,956 INFO L225 Difference]: With dead ends: 5607 [2022-03-15 17:07:19,957 INFO L226 Difference]: Without dead ends: 5540 [2022-03-15 17:07:19,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=179, Invalid=1627, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 17:07:19,958 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 336 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:19,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1633 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2022-03-15 17:07:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 3888. [2022-03-15 17:07:20,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 3887 states have (on average 3.373552868536146) internal successors, (13113), 3887 states have internal predecessors, (13113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 13113 transitions. [2022-03-15 17:07:20,047 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 13113 transitions. Word has length 39 [2022-03-15 17:07:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:20,047 INFO L470 AbstractCegarLoop]: Abstraction has 3888 states and 13113 transitions. [2022-03-15 17:07:20,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:20,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 13113 transitions. [2022-03-15 17:07:20,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:20,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:20,053 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] [2022-03-15 17:07:20,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 17:07:20,053 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:20,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:20,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1230613886, now seen corresponding path program 33 times [2022-03-15 17:07:20,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:20,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506635701] [2022-03-15 17:07:20,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:20,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:20,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:20,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:20,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506635701] [2022-03-15 17:07:20,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506635701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:20,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:20,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:20,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398634484] [2022-03-15 17:07:20,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:20,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:20,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:20,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:20,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:20,310 INFO L87 Difference]: Start difference. First operand 3888 states and 13113 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:21,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:21,623 INFO L93 Difference]: Finished difference Result 5595 states and 19114 transitions. [2022-03-15 17:07:21,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-15 17:07:21,623 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:21,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:21,634 INFO L225 Difference]: With dead ends: 5595 [2022-03-15 17:07:21,634 INFO L226 Difference]: Without dead ends: 5532 [2022-03-15 17:07:21,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=1705, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 17:07:21,635 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 347 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:21,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1642 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:07:21,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2022-03-15 17:07:21,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 3880. [2022-03-15 17:07:21,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 3879 states have (on average 3.3743232791956688) internal successors, (13089), 3879 states have internal predecessors, (13089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 13089 transitions. [2022-03-15 17:07:21,699 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 13089 transitions. Word has length 39 [2022-03-15 17:07:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:21,699 INFO L470 AbstractCegarLoop]: Abstraction has 3880 states and 13089 transitions. [2022-03-15 17:07:21,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 13089 transitions. [2022-03-15 17:07:21,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:21,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:21,704 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] [2022-03-15 17:07:21,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 17:07:21,705 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:21,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:21,705 INFO L85 PathProgramCache]: Analyzing trace with hash 700713438, now seen corresponding path program 34 times [2022-03-15 17:07:21,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:21,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720079957] [2022-03-15 17:07:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:21,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:21,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:21,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:21,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720079957] [2022-03-15 17:07:21,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720079957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:21,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:21,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:21,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742583983] [2022-03-15 17:07:21,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:21,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:21,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:21,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:21,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:21,946 INFO L87 Difference]: Start difference. First operand 3880 states and 13089 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:23,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:23,310 INFO L93 Difference]: Finished difference Result 5619 states and 19174 transitions. [2022-03-15 17:07:23,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-15 17:07:23,310 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:23,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:23,320 INFO L225 Difference]: With dead ends: 5619 [2022-03-15 17:07:23,320 INFO L226 Difference]: Without dead ends: 5496 [2022-03-15 17:07:23,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=193, Invalid=1787, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 17:07:23,321 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 346 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:23,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1712 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:23,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5496 states. [2022-03-15 17:07:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5496 to 3848. [2022-03-15 17:07:23,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.376397192617624) internal successors, (12989), 3847 states have internal predecessors, (12989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:23,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12989 transitions. [2022-03-15 17:07:23,397 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12989 transitions. Word has length 39 [2022-03-15 17:07:23,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:23,397 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 12989 transitions. [2022-03-15 17:07:23,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:23,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12989 transitions. [2022-03-15 17:07:23,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:23,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:23,404 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] [2022-03-15 17:07:23,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 17:07:23,404 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:23,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:23,405 INFO L85 PathProgramCache]: Analyzing trace with hash -17697732, now seen corresponding path program 35 times [2022-03-15 17:07:23,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:23,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097427211] [2022-03-15 17:07:23,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:23,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:23,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:23,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:23,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097427211] [2022-03-15 17:07:23,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097427211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:23,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:23,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:23,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883250970] [2022-03-15 17:07:23,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:23,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:23,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:23,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:23,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:23,685 INFO L87 Difference]: Start difference. First operand 3848 states and 12989 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:25,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:25,752 INFO L93 Difference]: Finished difference Result 6258 states and 21345 transitions. [2022-03-15 17:07:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-15 17:07:25,752 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:25,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:25,764 INFO L225 Difference]: With dead ends: 6258 [2022-03-15 17:07:25,764 INFO L226 Difference]: Without dead ends: 6215 [2022-03-15 17:07:25,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=354, Invalid=3552, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 17:07:25,765 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 471 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 2673 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:25,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1915 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2673 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:07:25,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2022-03-15 17:07:25,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 3862. [2022-03-15 17:07:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.374773374773375) internal successors, (13030), 3861 states have internal predecessors, (13030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13030 transitions. [2022-03-15 17:07:25,826 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13030 transitions. Word has length 39 [2022-03-15 17:07:25,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:25,826 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13030 transitions. [2022-03-15 17:07:25,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:25,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13030 transitions. [2022-03-15 17:07:25,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:25,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:25,832 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] [2022-03-15 17:07:25,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 17:07:25,832 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:25,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:25,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1798296034, now seen corresponding path program 36 times [2022-03-15 17:07:25,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:25,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166604541] [2022-03-15 17:07:25,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:25,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:26,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:26,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166604541] [2022-03-15 17:07:26,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166604541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:26,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:26,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:26,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288624268] [2022-03-15 17:07:26,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:26,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:26,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:26,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:26,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:26,119 INFO L87 Difference]: Start difference. First operand 3862 states and 13030 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:28,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:28,327 INFO L93 Difference]: Finished difference Result 7119 states and 24275 transitions. [2022-03-15 17:07:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-15 17:07:28,327 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:28,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:28,342 INFO L225 Difference]: With dead ends: 7119 [2022-03-15 17:07:28,342 INFO L226 Difference]: Without dead ends: 7067 [2022-03-15 17:07:28,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1323 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=396, Invalid=4296, Unknown=0, NotChecked=0, Total=4692 [2022-03-15 17:07:28,343 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 516 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:28,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 2252 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2982 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:07:28,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2022-03-15 17:07:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 3854. [2022-03-15 17:07:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.3765896703867115) internal successors, (13010), 3853 states have internal predecessors, (13010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13010 transitions. [2022-03-15 17:07:28,407 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13010 transitions. Word has length 39 [2022-03-15 17:07:28,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:28,407 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13010 transitions. [2022-03-15 17:07:28,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:28,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13010 transitions. [2022-03-15 17:07:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:28,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:28,412 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] [2022-03-15 17:07:28,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 17:07:28,413 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:28,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:28,413 INFO L85 PathProgramCache]: Analyzing trace with hash 900785838, now seen corresponding path program 37 times [2022-03-15 17:07:28,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:28,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72928056] [2022-03-15 17:07:28,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:28,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:28,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:28,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72928056] [2022-03-15 17:07:28,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72928056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:28,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:28,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:28,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984826192] [2022-03-15 17:07:28,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:28,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:28,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:28,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:28,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:28,664 INFO L87 Difference]: Start difference. First operand 3854 states and 13010 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:30,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:30,081 INFO L93 Difference]: Finished difference Result 5789 states and 19585 transitions. [2022-03-15 17:07:30,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 17:07:30,081 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:30,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:30,116 INFO L225 Difference]: With dead ends: 5789 [2022-03-15 17:07:30,116 INFO L226 Difference]: Without dead ends: 5734 [2022-03-15 17:07:30,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=235, Invalid=2117, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 17:07:30,117 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 399 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:30,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1665 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:07:30,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2022-03-15 17:07:30,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 3862. [2022-03-15 17:07:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.375809375809376) internal successors, (13034), 3861 states have internal predecessors, (13034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:30,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13034 transitions. [2022-03-15 17:07:30,173 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13034 transitions. Word has length 39 [2022-03-15 17:07:30,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:30,173 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13034 transitions. [2022-03-15 17:07:30,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:30,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13034 transitions. [2022-03-15 17:07:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:30,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:30,178 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] [2022-03-15 17:07:30,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 17:07:30,178 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:30,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:30,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2073438060, now seen corresponding path program 38 times [2022-03-15 17:07:30,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:30,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035205971] [2022-03-15 17:07:30,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:30,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:30,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:30,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035205971] [2022-03-15 17:07:30,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035205971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:30,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:30,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:30,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550184196] [2022-03-15 17:07:30,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:30,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:30,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:30,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:30,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:30,458 INFO L87 Difference]: Start difference. First operand 3862 states and 13034 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:32,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:32,138 INFO L93 Difference]: Finished difference Result 6650 states and 22519 transitions. [2022-03-15 17:07:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:07:32,138 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:32,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:32,151 INFO L225 Difference]: With dead ends: 6650 [2022-03-15 17:07:32,151 INFO L226 Difference]: Without dead ends: 6590 [2022-03-15 17:07:32,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:07:32,152 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 429 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 2648 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 2696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:32,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2022 Invalid, 2696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2648 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:07:32,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2022-03-15 17:07:32,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 3860. [2022-03-15 17:07:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 3859 states have (on average 3.3762632806426534) internal successors, (13029), 3859 states have internal predecessors, (13029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 13029 transitions. [2022-03-15 17:07:32,218 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 13029 transitions. Word has length 39 [2022-03-15 17:07:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:32,218 INFO L470 AbstractCegarLoop]: Abstraction has 3860 states and 13029 transitions. [2022-03-15 17:07:32,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 13029 transitions. [2022-03-15 17:07:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:32,223 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:32,223 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] [2022-03-15 17:07:32,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 17:07:32,223 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:32,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:32,224 INFO L85 PathProgramCache]: Analyzing trace with hash 196034458, now seen corresponding path program 39 times [2022-03-15 17:07:32,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:32,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483683230] [2022-03-15 17:07:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:32,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:32,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:32,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:32,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483683230] [2022-03-15 17:07:32,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483683230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:32,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:32,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:32,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952580193] [2022-03-15 17:07:32,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:32,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:32,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:32,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:32,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:32,471 INFO L87 Difference]: Start difference. First operand 3860 states and 13029 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:33,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:33,859 INFO L93 Difference]: Finished difference Result 5722 states and 19443 transitions. [2022-03-15 17:07:33,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:07:33,859 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:33,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:33,871 INFO L225 Difference]: With dead ends: 5722 [2022-03-15 17:07:33,871 INFO L226 Difference]: Without dead ends: 5631 [2022-03-15 17:07:33,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 17:07:33,872 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 383 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:33,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1732 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:07:33,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2022-03-15 17:07:33,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 3860. [2022-03-15 17:07:33,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 3859 states have (on average 3.374708473697849) internal successors, (13023), 3859 states have internal predecessors, (13023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 13023 transitions. [2022-03-15 17:07:33,935 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 13023 transitions. Word has length 39 [2022-03-15 17:07:33,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:33,935 INFO L470 AbstractCegarLoop]: Abstraction has 3860 states and 13023 transitions. [2022-03-15 17:07:33,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:33,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 13023 transitions. [2022-03-15 17:07:33,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:33,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:33,941 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] [2022-03-15 17:07:33,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 17:07:33,941 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:33,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:33,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1306447748, now seen corresponding path program 40 times [2022-03-15 17:07:33,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:33,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390499928] [2022-03-15 17:07:33,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:33,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:34,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:34,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:34,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390499928] [2022-03-15 17:07:34,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390499928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:34,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:34,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:34,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112463159] [2022-03-15 17:07:34,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:34,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:34,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:34,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:34,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:34,220 INFO L87 Difference]: Start difference. First operand 3860 states and 13023 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:35,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:35,825 INFO L93 Difference]: Finished difference Result 6494 states and 22159 transitions. [2022-03-15 17:07:35,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:07:35,825 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:35,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:35,838 INFO L225 Difference]: With dead ends: 6494 [2022-03-15 17:07:35,838 INFO L226 Difference]: Without dead ends: 6378 [2022-03-15 17:07:35,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=245, Invalid=2407, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:07:35,839 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 384 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:35,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 2083 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:35,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6378 states. [2022-03-15 17:07:35,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6378 to 3838. [2022-03-15 17:07:35,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3838 states, 3837 states have (on average 3.377638780297107) internal successors, (12960), 3837 states have internal predecessors, (12960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 12960 transitions. [2022-03-15 17:07:35,900 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 12960 transitions. Word has length 39 [2022-03-15 17:07:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:35,901 INFO L470 AbstractCegarLoop]: Abstraction has 3838 states and 12960 transitions. [2022-03-15 17:07:35,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:35,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 12960 transitions. [2022-03-15 17:07:35,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:35,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:35,906 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] [2022-03-15 17:07:35,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 17:07:35,906 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:35,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:35,906 INFO L85 PathProgramCache]: Analyzing trace with hash -569729732, now seen corresponding path program 41 times [2022-03-15 17:07:35,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:35,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612255321] [2022-03-15 17:07:35,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:35,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:36,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:36,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612255321] [2022-03-15 17:07:36,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612255321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:36,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:36,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:36,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420128910] [2022-03-15 17:07:36,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:36,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:36,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:36,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:36,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:36,144 INFO L87 Difference]: Start difference. First operand 3838 states and 12960 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:39,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:39,479 INFO L93 Difference]: Finished difference Result 8378 states and 28437 transitions. [2022-03-15 17:07:39,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-15 17:07:39,480 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:39,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:39,497 INFO L225 Difference]: With dead ends: 8378 [2022-03-15 17:07:39,497 INFO L226 Difference]: Without dead ends: 8272 [2022-03-15 17:07:39,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2722 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=650, Invalid=7722, Unknown=0, NotChecked=0, Total=8372 [2022-03-15 17:07:39,499 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 602 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 4459 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 4561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 4459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:39,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 3150 Invalid, 4561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 4459 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 17:07:39,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2022-03-15 17:07:39,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 3854. [2022-03-15 17:07:39,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.377108746431352) internal successors, (13012), 3853 states have internal predecessors, (13012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:39,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13012 transitions. [2022-03-15 17:07:39,575 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13012 transitions. Word has length 39 [2022-03-15 17:07:39,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:39,575 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13012 transitions. [2022-03-15 17:07:39,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:39,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13012 transitions. [2022-03-15 17:07:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:39,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:39,580 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] [2022-03-15 17:07:39,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 17:07:39,580 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:39,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:39,581 INFO L85 PathProgramCache]: Analyzing trace with hash -2064620632, now seen corresponding path program 42 times [2022-03-15 17:07:39,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:39,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794114757] [2022-03-15 17:07:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:39,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:39,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:39,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794114757] [2022-03-15 17:07:39,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794114757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:39,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:39,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:39,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626711337] [2022-03-15 17:07:39,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:39,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:39,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:39,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:39,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:39,866 INFO L87 Difference]: Start difference. First operand 3854 states and 13012 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:41,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:41,667 INFO L93 Difference]: Finished difference Result 6055 states and 20602 transitions. [2022-03-15 17:07:41,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-15 17:07:41,667 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:41,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:41,679 INFO L225 Difference]: With dead ends: 6055 [2022-03-15 17:07:41,679 INFO L226 Difference]: Without dead ends: 5991 [2022-03-15 17:07:41,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=334, Invalid=3448, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 17:07:41,680 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 452 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:41,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1632 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:41,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2022-03-15 17:07:41,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 3850. [2022-03-15 17:07:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3849 states have (on average 3.3780202650038973) internal successors, (13002), 3849 states have internal predecessors, (13002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:41,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 13002 transitions. [2022-03-15 17:07:41,739 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 13002 transitions. Word has length 39 [2022-03-15 17:07:41,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:41,739 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 13002 transitions. [2022-03-15 17:07:41,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:41,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 13002 transitions. [2022-03-15 17:07:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:41,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:41,744 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] [2022-03-15 17:07:41,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 17:07:41,745 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:41,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1146137062, now seen corresponding path program 43 times [2022-03-15 17:07:41,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:41,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851835044] [2022-03-15 17:07:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:41,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:41,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:41,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:41,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851835044] [2022-03-15 17:07:41,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851835044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:41,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:41,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:41,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114402586] [2022-03-15 17:07:41,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:41,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:41,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:41,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:41,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:41,990 INFO L87 Difference]: Start difference. First operand 3850 states and 13002 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:43,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:43,302 INFO L93 Difference]: Finished difference Result 5612 states and 19021 transitions. [2022-03-15 17:07:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 17:07:43,302 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:43,315 INFO L225 Difference]: With dead ends: 5612 [2022-03-15 17:07:43,315 INFO L226 Difference]: Without dead ends: 5569 [2022-03-15 17:07:43,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=1958, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 17:07:43,316 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 367 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:43,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1528 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:07:43,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-03-15 17:07:43,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 3872. [2022-03-15 17:07:43,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3871 states have (on average 3.375613536553862) internal successors, (13067), 3871 states have internal predecessors, (13067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 13067 transitions. [2022-03-15 17:07:43,401 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 13067 transitions. Word has length 39 [2022-03-15 17:07:43,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:43,401 INFO L470 AbstractCegarLoop]: Abstraction has 3872 states and 13067 transitions. [2022-03-15 17:07:43,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:43,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 13067 transitions. [2022-03-15 17:07:43,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:43,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:43,408 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] [2022-03-15 17:07:43,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 17:07:43,408 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:43,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1125988328, now seen corresponding path program 44 times [2022-03-15 17:07:43,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:43,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566062439] [2022-03-15 17:07:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:43,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:43,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:43,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566062439] [2022-03-15 17:07:43,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566062439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:43,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:43,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:43,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970914747] [2022-03-15 17:07:43,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:43,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:43,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:43,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:43,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:43,646 INFO L87 Difference]: Start difference. First operand 3872 states and 13067 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:45,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:45,056 INFO L93 Difference]: Finished difference Result 5591 states and 18991 transitions. [2022-03-15 17:07:45,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 17:07:45,057 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:45,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:45,067 INFO L225 Difference]: With dead ends: 5591 [2022-03-15 17:07:45,068 INFO L226 Difference]: Without dead ends: 5548 [2022-03-15 17:07:45,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=2130, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 17:07:45,068 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 366 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:45,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1578 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:07:45,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2022-03-15 17:07:45,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 3868. [2022-03-15 17:07:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3765192655805536) internal successors, (13057), 3867 states have internal predecessors, (13057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:45,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13057 transitions. [2022-03-15 17:07:45,126 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13057 transitions. Word has length 39 [2022-03-15 17:07:45,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:45,126 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13057 transitions. [2022-03-15 17:07:45,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13057 transitions. [2022-03-15 17:07:45,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:45,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:45,131 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] [2022-03-15 17:07:45,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 17:07:45,131 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash 26515160, now seen corresponding path program 45 times [2022-03-15 17:07:45,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:45,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458310502] [2022-03-15 17:07:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:45,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:45,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:45,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458310502] [2022-03-15 17:07:45,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458310502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:45,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:45,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:45,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655195600] [2022-03-15 17:07:45,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:45,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:45,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:45,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:45,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:45,375 INFO L87 Difference]: Start difference. First operand 3868 states and 13057 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:46,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:46,967 INFO L93 Difference]: Finished difference Result 6448 states and 21909 transitions. [2022-03-15 17:07:46,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:07:46,967 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:46,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:46,979 INFO L225 Difference]: With dead ends: 6448 [2022-03-15 17:07:46,979 INFO L226 Difference]: Without dead ends: 6388 [2022-03-15 17:07:46,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=258, Invalid=2604, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:07:46,980 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 407 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:46,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1837 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6388 states. [2022-03-15 17:07:47,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6388 to 3866. [2022-03-15 17:07:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 3865 states have (on average 3.376972833117723) internal successors, (13052), 3865 states have internal predecessors, (13052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:47,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 13052 transitions. [2022-03-15 17:07:47,039 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 13052 transitions. Word has length 39 [2022-03-15 17:07:47,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:47,039 INFO L470 AbstractCegarLoop]: Abstraction has 3866 states and 13052 transitions. [2022-03-15 17:07:47,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:47,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 13052 transitions. [2022-03-15 17:07:47,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:47,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:47,044 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] [2022-03-15 17:07:47,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 17:07:47,044 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:47,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2053051382, now seen corresponding path program 46 times [2022-03-15 17:07:47,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:47,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539553589] [2022-03-15 17:07:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:47,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:47,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:47,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539553589] [2022-03-15 17:07:47,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539553589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:47,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:47,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 17:07:47,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354790388] [2022-03-15 17:07:47,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:47,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 17:07:47,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:47,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 17:07:47,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-15 17:07:47,310 INFO L87 Difference]: Start difference. First operand 3866 states and 13052 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:48,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:48,735 INFO L93 Difference]: Finished difference Result 6416 states and 21849 transitions. [2022-03-15 17:07:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 17:07:48,736 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:48,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:48,749 INFO L225 Difference]: With dead ends: 6416 [2022-03-15 17:07:48,749 INFO L226 Difference]: Without dead ends: 6340 [2022-03-15 17:07:48,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=2038, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 17:07:48,750 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 369 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:48,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 1651 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:07:48,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2022-03-15 17:07:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 3874. [2022-03-15 17:07:48,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 3873 states have (on average 3.3741285824941905) internal successors, (13068), 3873 states have internal predecessors, (13068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:48,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 13068 transitions. [2022-03-15 17:07:48,815 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 13068 transitions. Word has length 39 [2022-03-15 17:07:48,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:48,815 INFO L470 AbstractCegarLoop]: Abstraction has 3874 states and 13068 transitions. [2022-03-15 17:07:48,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:48,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 13068 transitions. [2022-03-15 17:07:48,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:48,820 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:48,820 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] [2022-03-15 17:07:48,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 17:07:48,820 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:48,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1223862302, now seen corresponding path program 47 times [2022-03-15 17:07:48,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:48,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812150568] [2022-03-15 17:07:48,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:48,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:49,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:49,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812150568] [2022-03-15 17:07:49,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812150568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:49,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:49,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:49,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632217787] [2022-03-15 17:07:49,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:49,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:49,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:49,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:49,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:49,100 INFO L87 Difference]: Start difference. First operand 3874 states and 13068 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:50,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:50,709 INFO L93 Difference]: Finished difference Result 6398 states and 21795 transitions. [2022-03-15 17:07:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:07:50,710 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:50,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:50,723 INFO L225 Difference]: With dead ends: 6398 [2022-03-15 17:07:50,723 INFO L226 Difference]: Without dead ends: 6328 [2022-03-15 17:07:50,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=2413, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:07:50,724 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 390 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:50,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1845 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:50,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2022-03-15 17:07:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 3862. [2022-03-15 17:07:50,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.3773633773633773) internal successors, (13040), 3861 states have internal predecessors, (13040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:50,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13040 transitions. [2022-03-15 17:07:50,790 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13040 transitions. Word has length 39 [2022-03-15 17:07:50,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:50,791 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13040 transitions. [2022-03-15 17:07:50,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:50,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13040 transitions. [2022-03-15 17:07:50,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:50,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:50,796 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] [2022-03-15 17:07:50,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 17:07:50,797 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:50,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2070045982, now seen corresponding path program 48 times [2022-03-15 17:07:50,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:50,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100488677] [2022-03-15 17:07:50,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:50,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:51,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:51,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100488677] [2022-03-15 17:07:51,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100488677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:51,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:51,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:51,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011826618] [2022-03-15 17:07:51,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:51,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:51,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:51,026 INFO L87 Difference]: Start difference. First operand 3862 states and 13040 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:52,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:52,832 INFO L93 Difference]: Finished difference Result 6160 states and 21004 transitions. [2022-03-15 17:07:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 17:07:52,832 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:52,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:52,844 INFO L225 Difference]: With dead ends: 6160 [2022-03-15 17:07:52,845 INFO L226 Difference]: Without dead ends: 6117 [2022-03-15 17:07:52,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=344, Invalid=3438, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 17:07:52,846 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 453 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:52,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1790 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:52,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6117 states. [2022-03-15 17:07:52,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6117 to 3876. [2022-03-15 17:07:52,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3876 states, 3875 states have (on average 3.375741935483871) internal successors, (13081), 3875 states have internal predecessors, (13081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:52,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3876 states to 3876 states and 13081 transitions. [2022-03-15 17:07:52,938 INFO L78 Accepts]: Start accepts. Automaton has 3876 states and 13081 transitions. Word has length 39 [2022-03-15 17:07:52,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:52,938 INFO L470 AbstractCegarLoop]: Abstraction has 3876 states and 13081 transitions. [2022-03-15 17:07:52,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:52,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3876 states and 13081 transitions. [2022-03-15 17:07:52,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:52,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:52,943 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] [2022-03-15 17:07:52,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 17:07:52,943 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:52,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:52,943 INFO L85 PathProgramCache]: Analyzing trace with hash 289447680, now seen corresponding path program 49 times [2022-03-15 17:07:52,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:52,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211771760] [2022-03-15 17:07:52,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:52,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:53,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:53,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211771760] [2022-03-15 17:07:53,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211771760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:53,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:53,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:53,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227547112] [2022-03-15 17:07:53,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:53,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:53,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:53,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:53,200 INFO L87 Difference]: Start difference. First operand 3876 states and 13081 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:55,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:55,278 INFO L93 Difference]: Finished difference Result 7021 states and 23934 transitions. [2022-03-15 17:07:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-15 17:07:55,279 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:55,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:55,292 INFO L225 Difference]: With dead ends: 7021 [2022-03-15 17:07:55,293 INFO L226 Difference]: Without dead ends: 6969 [2022-03-15 17:07:55,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1275 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=386, Invalid=4170, Unknown=0, NotChecked=0, Total=4556 [2022-03-15 17:07:55,294 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 498 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 2853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:55,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 2125 Invalid, 2853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:07:55,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2022-03-15 17:07:55,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 3862. [2022-03-15 17:07:55,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.3773633773633773) internal successors, (13040), 3861 states have internal predecessors, (13040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:55,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13040 transitions. [2022-03-15 17:07:55,358 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13040 transitions. Word has length 39 [2022-03-15 17:07:55,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:55,358 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13040 transitions. [2022-03-15 17:07:55,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13040 transitions. [2022-03-15 17:07:55,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:55,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:55,363 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] [2022-03-15 17:07:55,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 17:07:55,363 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:55,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1306437744, now seen corresponding path program 50 times [2022-03-15 17:07:55,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:55,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440760687] [2022-03-15 17:07:55,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:55,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:55,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:55,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440760687] [2022-03-15 17:07:55,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440760687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:55,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:55,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:55,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119223923] [2022-03-15 17:07:55,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:55,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:55,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:55,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:55,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:55,597 INFO L87 Difference]: Start difference. First operand 3862 states and 13040 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:56,899 INFO L93 Difference]: Finished difference Result 5717 states and 19331 transitions. [2022-03-15 17:07:56,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:07:56,899 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:56,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:56,910 INFO L225 Difference]: With dead ends: 5717 [2022-03-15 17:07:56,910 INFO L226 Difference]: Without dead ends: 5662 [2022-03-15 17:07:56,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 17:07:56,911 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 375 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:56,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1554 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:07:56,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5662 states. [2022-03-15 17:07:56,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5662 to 3870. [2022-03-15 17:07:56,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 3869 states have (on average 3.3765830964073404) internal successors, (13064), 3869 states have internal predecessors, (13064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 13064 transitions. [2022-03-15 17:07:56,967 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 13064 transitions. Word has length 39 [2022-03-15 17:07:56,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:56,968 INFO L470 AbstractCegarLoop]: Abstraction has 3870 states and 13064 transitions. [2022-03-15 17:07:56,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:56,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 13064 transitions. [2022-03-15 17:07:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:56,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:56,973 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] [2022-03-15 17:07:56,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 17:07:56,973 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:56,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:56,973 INFO L85 PathProgramCache]: Analyzing trace with hash -133785522, now seen corresponding path program 51 times [2022-03-15 17:07:56,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:56,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308594766] [2022-03-15 17:07:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:56,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:57,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:57,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308594766] [2022-03-15 17:07:57,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308594766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:57,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:57,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:57,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438589207] [2022-03-15 17:07:57,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:57,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:57,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:57,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:57,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:57,248 INFO L87 Difference]: Start difference. First operand 3870 states and 13064 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:58,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:07:58,857 INFO L93 Difference]: Finished difference Result 6578 states and 22265 transitions. [2022-03-15 17:07:58,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 17:07:58,858 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:07:58,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:07:58,871 INFO L225 Difference]: With dead ends: 6578 [2022-03-15 17:07:58,871 INFO L226 Difference]: Without dead ends: 6518 [2022-03-15 17:07:58,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=276, Invalid=2694, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 17:07:58,872 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 425 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:07:58,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 1903 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:07:58,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6518 states. [2022-03-15 17:07:58,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6518 to 3868. [2022-03-15 17:07:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3770364623739333) internal successors, (13059), 3867 states have internal predecessors, (13059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13059 transitions. [2022-03-15 17:07:58,935 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13059 transitions. Word has length 39 [2022-03-15 17:07:58,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:07:58,935 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13059 transitions. [2022-03-15 17:07:58,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:07:58,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13059 transitions. [2022-03-15 17:07:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:07:58,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:07:58,941 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] [2022-03-15 17:07:58,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 17:07:58,941 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:07:58,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:07:58,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2011189124, now seen corresponding path program 52 times [2022-03-15 17:07:58,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:07:58,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114910954] [2022-03-15 17:07:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:07:58,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:07:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:07:59,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:07:59,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:07:59,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114910954] [2022-03-15 17:07:59,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114910954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:07:59,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:07:59,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:07:59,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758506640] [2022-03-15 17:07:59,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:07:59,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:07:59,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:07:59,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:07:59,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:07:59,174 INFO L87 Difference]: Start difference. First operand 3868 states and 13059 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:00,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:00,424 INFO L93 Difference]: Finished difference Result 5638 states and 19157 transitions. [2022-03-15 17:08:00,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 17:08:00,424 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:00,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:00,435 INFO L225 Difference]: With dead ends: 5638 [2022-03-15 17:08:00,435 INFO L226 Difference]: Without dead ends: 5547 [2022-03-15 17:08:00,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=193, Invalid=1787, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 17:08:00,436 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 351 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:00,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1623 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:08:00,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2022-03-15 17:08:00,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 3868. [2022-03-15 17:08:00,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3754848719937938) internal successors, (13053), 3867 states have internal predecessors, (13053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:00,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13053 transitions. [2022-03-15 17:08:00,493 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13053 transitions. Word has length 39 [2022-03-15 17:08:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:00,493 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13053 transitions. [2022-03-15 17:08:00,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:00,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13053 transitions. [2022-03-15 17:08:00,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:00,498 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:00,498 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] [2022-03-15 17:08:00,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 17:08:00,499 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:00,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:00,499 INFO L85 PathProgramCache]: Analyzing trace with hash 781295966, now seen corresponding path program 53 times [2022-03-15 17:08:00,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:00,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890620600] [2022-03-15 17:08:00,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:00,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:00,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:00,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890620600] [2022-03-15 17:08:00,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890620600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:00,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:00,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:08:00,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226300426] [2022-03-15 17:08:00,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:00,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:08:00,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:00,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:08:00,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:08:00,743 INFO L87 Difference]: Start difference. First operand 3868 states and 13053 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:02,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:02,258 INFO L93 Difference]: Finished difference Result 6470 states and 22033 transitions. [2022-03-15 17:08:02,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:08:02,258 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:02,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:02,271 INFO L225 Difference]: With dead ends: 6470 [2022-03-15 17:08:02,271 INFO L226 Difference]: Without dead ends: 6370 [2022-03-15 17:08:02,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=245, Invalid=2407, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:08:02,272 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 399 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:02,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1945 Invalid, 2488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:02,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6370 states. [2022-03-15 17:08:02,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6370 to 3862. [2022-03-15 17:08:02,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.375809375809376) internal successors, (13034), 3861 states have internal predecessors, (13034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:02,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13034 transitions. [2022-03-15 17:08:02,372 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13034 transitions. Word has length 39 [2022-03-15 17:08:02,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:02,372 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13034 transitions. [2022-03-15 17:08:02,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:02,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13034 transitions. [2022-03-15 17:08:02,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:02,377 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:02,377 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] [2022-03-15 17:08:02,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 17:08:02,378 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:02,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:02,378 INFO L85 PathProgramCache]: Analyzing trace with hash 544670970, now seen corresponding path program 54 times [2022-03-15 17:08:02,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:02,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788290416] [2022-03-15 17:08:02,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:02,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:02,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:02,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:02,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788290416] [2022-03-15 17:08:02,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788290416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:02,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:02,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 17:08:02,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223300015] [2022-03-15 17:08:02,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:02,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 17:08:02,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:02,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 17:08:02,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-15 17:08:02,639 INFO L87 Difference]: Start difference. First operand 3862 states and 13034 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:03,972 INFO L93 Difference]: Finished difference Result 6347 states and 21652 transitions. [2022-03-15 17:08:03,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-15 17:08:03,972 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:03,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:03,985 INFO L225 Difference]: With dead ends: 6347 [2022-03-15 17:08:03,985 INFO L226 Difference]: Without dead ends: 6271 [2022-03-15 17:08:03,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 17:08:03,986 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 347 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:03,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1650 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:08:03,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6271 states. [2022-03-15 17:08:04,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6271 to 3894. [2022-03-15 17:08:04,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 3893 states have (on average 3.37066529668636) internal successors, (13122), 3893 states have internal predecessors, (13122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 13122 transitions. [2022-03-15 17:08:04,058 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 13122 transitions. Word has length 39 [2022-03-15 17:08:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:04,058 INFO L470 AbstractCegarLoop]: Abstraction has 3894 states and 13122 transitions. [2022-03-15 17:08:04,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 13122 transitions. [2022-03-15 17:08:04,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:04,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:04,064 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] [2022-03-15 17:08:04,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 17:08:04,064 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:04,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash -473382642, now seen corresponding path program 55 times [2022-03-15 17:08:04,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:04,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683749218] [2022-03-15 17:08:04,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:04,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:04,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:04,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:04,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683749218] [2022-03-15 17:08:04,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683749218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:04,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:04,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:08:04,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058017310] [2022-03-15 17:08:04,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:04,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:08:04,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:04,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:08:04,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:08:04,299 INFO L87 Difference]: Start difference. First operand 3894 states and 13122 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:05,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:05,779 INFO L93 Difference]: Finished difference Result 6329 states and 21598 transitions. [2022-03-15 17:08:05,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 17:08:05,780 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:05,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:05,793 INFO L225 Difference]: With dead ends: 6329 [2022-03-15 17:08:05,793 INFO L226 Difference]: Without dead ends: 6263 [2022-03-15 17:08:05,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=2224, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 17:08:05,794 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 376 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:05,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1829 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:08:05,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6263 states. [2022-03-15 17:08:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6263 to 3886. [2022-03-15 17:08:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3885 states have (on average 3.3714285714285714) internal successors, (13098), 3885 states have internal predecessors, (13098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 13098 transitions. [2022-03-15 17:08:05,853 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 13098 transitions. Word has length 39 [2022-03-15 17:08:05,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:05,853 INFO L470 AbstractCegarLoop]: Abstraction has 3886 states and 13098 transitions. [2022-03-15 17:08:05,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:05,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 13098 transitions. [2022-03-15 17:08:05,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:05,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:05,858 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] [2022-03-15 17:08:05,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 17:08:05,858 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:05,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:05,859 INFO L85 PathProgramCache]: Analyzing trace with hash -755648296, now seen corresponding path program 56 times [2022-03-15 17:08:05,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:05,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232712941] [2022-03-15 17:08:05,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:05,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:06,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:06,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232712941] [2022-03-15 17:08:06,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232712941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:06,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:06,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:08:06,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747808133] [2022-03-15 17:08:06,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:06,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:08:06,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:06,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:08:06,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:08:06,088 INFO L87 Difference]: Start difference. First operand 3886 states and 13098 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:07,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:07,552 INFO L93 Difference]: Finished difference Result 6350 states and 21651 transitions. [2022-03-15 17:08:07,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 17:08:07,553 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:07,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:07,564 INFO L225 Difference]: With dead ends: 6350 [2022-03-15 17:08:07,565 INFO L226 Difference]: Without dead ends: 6188 [2022-03-15 17:08:07,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=2224, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 17:08:07,565 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 369 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:07,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 1900 Invalid, 2433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:08:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6188 states. [2022-03-15 17:08:07,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6188 to 3818. [2022-03-15 17:08:07,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3817 states have (on average 3.378045585538381) internal successors, (12894), 3817 states have internal predecessors, (12894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:07,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 12894 transitions. [2022-03-15 17:08:07,625 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 12894 transitions. Word has length 39 [2022-03-15 17:08:07,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:07,626 INFO L470 AbstractCegarLoop]: Abstraction has 3818 states and 12894 transitions. [2022-03-15 17:08:07,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 12894 transitions. [2022-03-15 17:08:07,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:07,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:07,631 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] [2022-03-15 17:08:07,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 17:08:07,631 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:07,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:07,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1202837964, now seen corresponding path program 57 times [2022-03-15 17:08:07,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:07,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033241831] [2022-03-15 17:08:07,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:07,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:07,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:07,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:07,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033241831] [2022-03-15 17:08:07,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033241831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:07,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:07,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:07,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139104762] [2022-03-15 17:08:07,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:07,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:07,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:07,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:07,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:07,938 INFO L87 Difference]: Start difference. First operand 3818 states and 12894 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:10,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:10,306 INFO L93 Difference]: Finished difference Result 6897 states and 23267 transitions. [2022-03-15 17:08:10,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 17:08:10,307 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:10,320 INFO L225 Difference]: With dead ends: 6897 [2022-03-15 17:08:10,320 INFO L226 Difference]: Without dead ends: 6830 [2022-03-15 17:08:10,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=399, Invalid=4571, Unknown=0, NotChecked=0, Total=4970 [2022-03-15 17:08:10,321 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 520 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 3506 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:10,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 2870 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3506 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:08:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6830 states. [2022-03-15 17:08:10,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6830 to 3854. [2022-03-15 17:08:10,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.373994290163509) internal successors, (13000), 3853 states have internal predecessors, (13000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13000 transitions. [2022-03-15 17:08:10,385 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13000 transitions. Word has length 39 [2022-03-15 17:08:10,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:10,385 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13000 transitions. [2022-03-15 17:08:10,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:10,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13000 transitions. [2022-03-15 17:08:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:10,390 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:10,390 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] [2022-03-15 17:08:10,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 17:08:10,390 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:10,391 INFO L85 PathProgramCache]: Analyzing trace with hash -516778006, now seen corresponding path program 58 times [2022-03-15 17:08:10,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:10,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857133754] [2022-03-15 17:08:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:10,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:10,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:10,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857133754] [2022-03-15 17:08:10,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857133754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:10,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:10,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:10,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254232217] [2022-03-15 17:08:10,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:10,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:10,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:10,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:10,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:10,657 INFO L87 Difference]: Start difference. First operand 3854 states and 13000 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:13,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:13,867 INFO L93 Difference]: Finished difference Result 8258 states and 27892 transitions. [2022-03-15 17:08:13,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-03-15 17:08:13,868 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:13,886 INFO L225 Difference]: With dead ends: 8258 [2022-03-15 17:08:13,886 INFO L226 Difference]: Without dead ends: 8215 [2022-03-15 17:08:13,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2597 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=621, Invalid=7569, Unknown=0, NotChecked=0, Total=8190 [2022-03-15 17:08:13,887 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 626 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 4331 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 3327 SdHoareTripleChecker+Invalid, 4434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 4331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:13,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 3327 Invalid, 4434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 4331 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:08:13,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2022-03-15 17:08:13,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 3896. [2022-03-15 17:08:13,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3895 states have (on average 3.371245186136072) internal successors, (13131), 3895 states have internal predecessors, (13131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 13131 transitions. [2022-03-15 17:08:13,968 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 13131 transitions. Word has length 39 [2022-03-15 17:08:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:13,968 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 13131 transitions. [2022-03-15 17:08:13,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 13131 transitions. [2022-03-15 17:08:13,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:13,973 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:13,973 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] [2022-03-15 17:08:13,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 17:08:13,973 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:13,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:13,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1997590988, now seen corresponding path program 59 times [2022-03-15 17:08:13,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:13,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979694944] [2022-03-15 17:08:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:13,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:14,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:14,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979694944] [2022-03-15 17:08:14,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979694944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:14,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:14,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:14,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141853524] [2022-03-15 17:08:14,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:14,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:14,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:14,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:14,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:14,226 INFO L87 Difference]: Start difference. First operand 3896 states and 13131 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:17,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:17,468 INFO L93 Difference]: Finished difference Result 8513 states and 28878 transitions. [2022-03-15 17:08:17,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 17:08:17,468 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:17,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:17,485 INFO L225 Difference]: With dead ends: 8513 [2022-03-15 17:08:17,485 INFO L226 Difference]: Without dead ends: 8449 [2022-03-15 17:08:17,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2591 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=620, Invalid=7570, Unknown=0, NotChecked=0, Total=8190 [2022-03-15 17:08:17,486 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 622 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 4400 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 4525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 4400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:17,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [622 Valid, 3274 Invalid, 4525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 4400 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 17:08:17,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8449 states. [2022-03-15 17:08:17,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8449 to 3826. [2022-03-15 17:08:17,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3825 states have (on average 3.3772549019607845) internal successors, (12918), 3825 states have internal predecessors, (12918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:17,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 12918 transitions. [2022-03-15 17:08:17,558 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 12918 transitions. Word has length 39 [2022-03-15 17:08:17,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:17,559 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 12918 transitions. [2022-03-15 17:08:17,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:17,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 12918 transitions. [2022-03-15 17:08:17,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:17,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:17,564 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] [2022-03-15 17:08:17,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 17:08:17,564 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:17,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:17,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1676941908, now seen corresponding path program 60 times [2022-03-15 17:08:17,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:17,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905871557] [2022-03-15 17:08:17,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:17,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:17,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:17,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905871557] [2022-03-15 17:08:17,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905871557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:17,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:17,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:17,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565765652] [2022-03-15 17:08:17,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:17,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:17,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:17,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:17,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:17,834 INFO L87 Difference]: Start difference. First operand 3826 states and 12918 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:19,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:19,332 INFO L93 Difference]: Finished difference Result 5641 states and 19191 transitions. [2022-03-15 17:08:19,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:08:19,333 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:19,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:19,367 INFO L225 Difference]: With dead ends: 5641 [2022-03-15 17:08:19,367 INFO L226 Difference]: Without dead ends: 5574 [2022-03-15 17:08:19,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=256, Invalid=2500, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 17:08:19,367 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 413 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:19,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1746 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:19,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2022-03-15 17:08:19,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 3854. [2022-03-15 17:08:19,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.3734752141188684) internal successors, (12998), 3853 states have internal predecessors, (12998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:19,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 12998 transitions. [2022-03-15 17:08:19,425 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 12998 transitions. Word has length 39 [2022-03-15 17:08:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:19,425 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 12998 transitions. [2022-03-15 17:08:19,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:19,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 12998 transitions. [2022-03-15 17:08:19,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:19,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:19,430 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] [2022-03-15 17:08:19,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 17:08:19,430 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:19,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1807536756, now seen corresponding path program 61 times [2022-03-15 17:08:19,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:19,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849776511] [2022-03-15 17:08:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:19,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:19,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:19,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849776511] [2022-03-15 17:08:19,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849776511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:19,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:19,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:19,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969373531] [2022-03-15 17:08:19,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:19,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:19,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:19,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:19,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:19,703 INFO L87 Difference]: Start difference. First operand 3854 states and 12998 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:21,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:21,201 INFO L93 Difference]: Finished difference Result 5629 states and 19151 transitions. [2022-03-15 17:08:21,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 17:08:21,201 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:21,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:21,212 INFO L225 Difference]: With dead ends: 5629 [2022-03-15 17:08:21,212 INFO L226 Difference]: Without dead ends: 5566 [2022-03-15 17:08:21,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=2599, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:08:21,213 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 411 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:21,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 1773 Invalid, 2523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:21,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5566 states. [2022-03-15 17:08:21,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5566 to 3846. [2022-03-15 17:08:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 3845 states have (on average 3.375292587776333) internal successors, (12978), 3845 states have internal predecessors, (12978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 12978 transitions. [2022-03-15 17:08:21,274 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 12978 transitions. Word has length 39 [2022-03-15 17:08:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:21,274 INFO L470 AbstractCegarLoop]: Abstraction has 3846 states and 12978 transitions. [2022-03-15 17:08:21,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:21,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 12978 transitions. [2022-03-15 17:08:21,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:21,280 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:21,281 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] [2022-03-15 17:08:21,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 17:08:21,281 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1943215348, now seen corresponding path program 62 times [2022-03-15 17:08:21,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:21,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375679761] [2022-03-15 17:08:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:21,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:21,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:21,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375679761] [2022-03-15 17:08:21,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375679761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:21,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:21,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:21,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203358458] [2022-03-15 17:08:21,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:21,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:21,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:21,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:21,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:21,528 INFO L87 Difference]: Start difference. First operand 3846 states and 12978 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:23,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:23,604 INFO L93 Difference]: Finished difference Result 6214 states and 21108 transitions. [2022-03-15 17:08:23,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-15 17:08:23,605 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:23,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:23,617 INFO L225 Difference]: With dead ends: 6214 [2022-03-15 17:08:23,617 INFO L226 Difference]: Without dead ends: 6171 [2022-03-15 17:08:23,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=402, Invalid=4428, Unknown=0, NotChecked=0, Total=4830 [2022-03-15 17:08:23,618 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 524 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:23,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 1990 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:08:23,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6171 states. [2022-03-15 17:08:23,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6171 to 3874. [2022-03-15 17:08:23,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 3873 states have (on average 3.3736121869351923) internal successors, (13066), 3873 states have internal predecessors, (13066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:23,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 13066 transitions. [2022-03-15 17:08:23,683 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 13066 transitions. Word has length 39 [2022-03-15 17:08:23,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:23,683 INFO L470 AbstractCegarLoop]: Abstraction has 3874 states and 13066 transitions. [2022-03-15 17:08:23,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:23,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 13066 transitions. [2022-03-15 17:08:23,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:23,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:23,688 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] [2022-03-15 17:08:23,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 17:08:23,688 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:23,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:23,689 INFO L85 PathProgramCache]: Analyzing trace with hash 571153646, now seen corresponding path program 63 times [2022-03-15 17:08:23,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:23,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610512768] [2022-03-15 17:08:23,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:23,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:23,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:23,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:23,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610512768] [2022-03-15 17:08:23,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610512768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:23,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:23,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:23,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649032784] [2022-03-15 17:08:23,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:23,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:23,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:23,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:23,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:23,944 INFO L87 Difference]: Start difference. First operand 3874 states and 13066 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:26,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:26,265 INFO L93 Difference]: Finished difference Result 7060 states and 23999 transitions. [2022-03-15 17:08:26,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-15 17:08:26,265 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:26,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:26,279 INFO L225 Difference]: With dead ends: 7060 [2022-03-15 17:08:26,279 INFO L226 Difference]: Without dead ends: 7008 [2022-03-15 17:08:26,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1596 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=437, Invalid=5113, Unknown=0, NotChecked=0, Total=5550 [2022-03-15 17:08:26,279 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 561 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 3119 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 3221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 3119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:26,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 2333 Invalid, 3221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 3119 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:08:26,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2022-03-15 17:08:26,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 3862. [2022-03-15 17:08:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.375291375291375) internal successors, (13032), 3861 states have internal predecessors, (13032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13032 transitions. [2022-03-15 17:08:26,340 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13032 transitions. Word has length 39 [2022-03-15 17:08:26,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:26,340 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13032 transitions. [2022-03-15 17:08:26,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:26,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13032 transitions. [2022-03-15 17:08:26,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:26,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:26,345 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] [2022-03-15 17:08:26,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 17:08:26,345 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:26,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1024731778, now seen corresponding path program 64 times [2022-03-15 17:08:26,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:26,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830338359] [2022-03-15 17:08:26,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:26,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:26,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:26,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830338359] [2022-03-15 17:08:26,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830338359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:26,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:26,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:26,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614329643] [2022-03-15 17:08:26,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:26,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:26,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:26,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:26,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:26,595 INFO L87 Difference]: Start difference. First operand 3862 states and 13032 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:28,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:28,148 INFO L93 Difference]: Finished difference Result 5773 states and 19479 transitions. [2022-03-15 17:08:28,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 17:08:28,148 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:28,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:28,159 INFO L225 Difference]: With dead ends: 5773 [2022-03-15 17:08:28,159 INFO L226 Difference]: Without dead ends: 5718 [2022-03-15 17:08:28,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=280, Invalid=2800, Unknown=0, NotChecked=0, Total=3080 [2022-03-15 17:08:28,160 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 439 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:28,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 1793 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2022-03-15 17:08:28,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 3864. [2022-03-15 17:08:28,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 3863 states have (on average 3.3743204763137458) internal successors, (13035), 3863 states have internal predecessors, (13035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 13035 transitions. [2022-03-15 17:08:28,220 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 13035 transitions. Word has length 39 [2022-03-15 17:08:28,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:28,220 INFO L470 AbstractCegarLoop]: Abstraction has 3864 states and 13035 transitions. [2022-03-15 17:08:28,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:28,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 13035 transitions. [2022-03-15 17:08:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:28,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:28,226 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] [2022-03-15 17:08:28,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 17:08:28,226 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:28,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:28,227 INFO L85 PathProgramCache]: Analyzing trace with hash 147920444, now seen corresponding path program 65 times [2022-03-15 17:08:28,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:28,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225195151] [2022-03-15 17:08:28,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:28,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:28,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:28,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:28,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225195151] [2022-03-15 17:08:28,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225195151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:28,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:28,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:28,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809967919] [2022-03-15 17:08:28,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:28,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:28,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:28,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:28,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:28,484 INFO L87 Difference]: Start difference. First operand 3864 states and 13035 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:30,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:30,235 INFO L93 Difference]: Finished difference Result 6566 states and 22256 transitions. [2022-03-15 17:08:30,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-15 17:08:30,236 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:30,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:30,249 INFO L225 Difference]: With dead ends: 6566 [2022-03-15 17:08:30,249 INFO L226 Difference]: Without dead ends: 6520 [2022-03-15 17:08:30,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=297, Invalid=3125, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:08:30,250 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 456 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2819 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 2876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:30,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2154 Invalid, 2876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2819 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:08:30,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6520 states. [2022-03-15 17:08:30,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6520 to 3868. [2022-03-15 17:08:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3728988880268944) internal successors, (13043), 3867 states have internal predecessors, (13043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13043 transitions. [2022-03-15 17:08:30,311 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13043 transitions. Word has length 39 [2022-03-15 17:08:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:30,312 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13043 transitions. [2022-03-15 17:08:30,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13043 transitions. [2022-03-15 17:08:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:30,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:30,317 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] [2022-03-15 17:08:30,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 17:08:30,317 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:30,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:30,317 INFO L85 PathProgramCache]: Analyzing trace with hash -99545718, now seen corresponding path program 66 times [2022-03-15 17:08:30,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:30,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263446348] [2022-03-15 17:08:30,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:30,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:30,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:30,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263446348] [2022-03-15 17:08:30,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263446348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:30,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:30,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:30,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026423833] [2022-03-15 17:08:30,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:30,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:30,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:30,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:30,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:30,569 INFO L87 Difference]: Start difference. First operand 3868 states and 13043 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:32,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:32,152 INFO L93 Difference]: Finished difference Result 5676 states and 19264 transitions. [2022-03-15 17:08:32,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:08:32,152 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:32,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:32,163 INFO L225 Difference]: With dead ends: 5676 [2022-03-15 17:08:32,163 INFO L226 Difference]: Without dead ends: 5627 [2022-03-15 17:08:32,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=282, Invalid=2798, Unknown=0, NotChecked=0, Total=3080 [2022-03-15 17:08:32,166 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 426 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:32,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1784 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5627 states. [2022-03-15 17:08:32,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5627 to 3858. [2022-03-15 17:08:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3761991184858697) internal successors, (13022), 3857 states have internal predecessors, (13022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 13022 transitions. [2022-03-15 17:08:32,252 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 13022 transitions. Word has length 39 [2022-03-15 17:08:32,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:32,252 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 13022 transitions. [2022-03-15 17:08:32,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:32,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 13022 transitions. [2022-03-15 17:08:32,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:32,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:32,257 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] [2022-03-15 17:08:32,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 17:08:32,257 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:32,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:32,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1439329804, now seen corresponding path program 67 times [2022-03-15 17:08:32,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:32,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493199333] [2022-03-15 17:08:32,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:32,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:32,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:32,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493199333] [2022-03-15 17:08:32,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493199333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:32,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:32,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:32,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178575636] [2022-03-15 17:08:32,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:32,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:32,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:32,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:32,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:32,503 INFO L87 Difference]: Start difference. First operand 3858 states and 13022 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:33,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:33,933 INFO L93 Difference]: Finished difference Result 5685 states and 19349 transitions. [2022-03-15 17:08:33,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:08:33,933 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:33,945 INFO L225 Difference]: With dead ends: 5685 [2022-03-15 17:08:33,945 INFO L226 Difference]: Without dead ends: 5618 [2022-03-15 17:08:33,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=2135, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 17:08:33,945 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 396 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:33,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 1784 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2022-03-15 17:08:33,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 3898. [2022-03-15 17:08:33,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 3897 states have (on average 3.369258403900436) internal successors, (13130), 3897 states have internal predecessors, (13130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:34,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 13130 transitions. [2022-03-15 17:08:34,003 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 13130 transitions. Word has length 39 [2022-03-15 17:08:34,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:34,004 INFO L470 AbstractCegarLoop]: Abstraction has 3898 states and 13130 transitions. [2022-03-15 17:08:34,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:34,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 13130 transitions. [2022-03-15 17:08:34,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:34,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:34,009 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] [2022-03-15 17:08:34,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 17:08:34,009 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:34,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:34,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1308734956, now seen corresponding path program 68 times [2022-03-15 17:08:34,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:34,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202183859] [2022-03-15 17:08:34,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:34,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:34,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:34,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:34,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202183859] [2022-03-15 17:08:34,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202183859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:34,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:34,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:34,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480509092] [2022-03-15 17:08:34,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:34,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:34,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:34,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:34,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:34,275 INFO L87 Difference]: Start difference. First operand 3898 states and 13130 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:35,718 INFO L93 Difference]: Finished difference Result 5673 states and 19309 transitions. [2022-03-15 17:08:35,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 17:08:35,718 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:35,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:35,729 INFO L225 Difference]: With dead ends: 5673 [2022-03-15 17:08:35,729 INFO L226 Difference]: Without dead ends: 5610 [2022-03-15 17:08:35,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=2133, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 17:08:35,730 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 396 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:35,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 1800 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-03-15 17:08:35,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 3890. [2022-03-15 17:08:35,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3889 states have (on average 3.370017999485729) internal successors, (13106), 3889 states have internal predecessors, (13106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:35,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 13106 transitions. [2022-03-15 17:08:35,787 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 13106 transitions. Word has length 39 [2022-03-15 17:08:35,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:35,787 INFO L470 AbstractCegarLoop]: Abstraction has 3890 states and 13106 transitions. [2022-03-15 17:08:35,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:35,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 13106 transitions. [2022-03-15 17:08:35,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:35,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:35,793 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] [2022-03-15 17:08:35,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 17:08:35,793 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:35,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:35,794 INFO L85 PathProgramCache]: Analyzing trace with hash 778834508, now seen corresponding path program 69 times [2022-03-15 17:08:35,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:35,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279922691] [2022-03-15 17:08:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:35,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:36,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:36,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279922691] [2022-03-15 17:08:36,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279922691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:36,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:36,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:36,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404006800] [2022-03-15 17:08:36,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:36,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:36,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:36,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:36,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:36,045 INFO L87 Difference]: Start difference. First operand 3890 states and 13106 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:37,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:37,473 INFO L93 Difference]: Finished difference Result 5697 states and 19369 transitions. [2022-03-15 17:08:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:08:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:37,484 INFO L225 Difference]: With dead ends: 5697 [2022-03-15 17:08:37,484 INFO L226 Difference]: Without dead ends: 5574 [2022-03-15 17:08:37,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=215, Invalid=2137, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 17:08:37,485 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 394 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:37,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1877 Invalid, 2588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2545 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:37,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2022-03-15 17:08:37,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 3858. [2022-03-15 17:08:37,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3720508166969148) internal successors, (13006), 3857 states have internal predecessors, (13006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:37,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 13006 transitions. [2022-03-15 17:08:37,543 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 13006 transitions. Word has length 39 [2022-03-15 17:08:37,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:37,543 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 13006 transitions. [2022-03-15 17:08:37,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:37,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 13006 transitions. [2022-03-15 17:08:37,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:37,548 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:37,548 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] [2022-03-15 17:08:37,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 17:08:37,548 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash 60423338, now seen corresponding path program 70 times [2022-03-15 17:08:37,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:37,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160502611] [2022-03-15 17:08:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:37,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:37,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160502611] [2022-03-15 17:08:37,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160502611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:37,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:37,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:37,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411456637] [2022-03-15 17:08:37,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:37,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:37,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:37,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:37,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:37,803 INFO L87 Difference]: Start difference. First operand 3858 states and 13006 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:39,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:39,856 INFO L93 Difference]: Finished difference Result 6282 states and 21379 transitions. [2022-03-15 17:08:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-15 17:08:39,856 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:39,868 INFO L225 Difference]: With dead ends: 6282 [2022-03-15 17:08:39,868 INFO L226 Difference]: Without dead ends: 6239 [2022-03-15 17:08:39,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=370, Invalid=3920, Unknown=0, NotChecked=0, Total=4290 [2022-03-15 17:08:39,869 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 501 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:39,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 2172 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:08:39,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6239 states. [2022-03-15 17:08:39,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6239 to 3872. [2022-03-15 17:08:39,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3871 states have (on average 3.370446912942392) internal successors, (13047), 3871 states have internal predecessors, (13047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 13047 transitions. [2022-03-15 17:08:39,958 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 13047 transitions. Word has length 39 [2022-03-15 17:08:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:39,958 INFO L470 AbstractCegarLoop]: Abstraction has 3872 states and 13047 transitions. [2022-03-15 17:08:39,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:39,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 13047 transitions. [2022-03-15 17:08:39,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:39,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:39,965 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] [2022-03-15 17:08:39,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 17:08:39,965 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:39,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:39,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1720174964, now seen corresponding path program 71 times [2022-03-15 17:08:39,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:39,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694762640] [2022-03-15 17:08:39,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:39,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:40,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:40,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:40,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694762640] [2022-03-15 17:08:40,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694762640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:40,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:40,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:40,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283413026] [2022-03-15 17:08:40,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:40,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:40,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:40,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:40,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:40,208 INFO L87 Difference]: Start difference. First operand 3872 states and 13047 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:42,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:42,504 INFO L93 Difference]: Finished difference Result 7143 states and 24309 transitions. [2022-03-15 17:08:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 17:08:42,504 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:42,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:42,518 INFO L225 Difference]: With dead ends: 7143 [2022-03-15 17:08:42,518 INFO L226 Difference]: Without dead ends: 7091 [2022-03-15 17:08:42,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=412, Invalid=4700, Unknown=0, NotChecked=0, Total=5112 [2022-03-15 17:08:42,519 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 546 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 3234 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:42,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 2539 Invalid, 3323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 3234 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:08:42,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2022-03-15 17:08:42,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 3842. [2022-03-15 17:08:42,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3842 states, 3841 states have (on average 3.3720385316323873) internal successors, (12952), 3841 states have internal predecessors, (12952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3842 states to 3842 states and 12952 transitions. [2022-03-15 17:08:42,581 INFO L78 Accepts]: Start accepts. Automaton has 3842 states and 12952 transitions. Word has length 39 [2022-03-15 17:08:42,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:42,581 INFO L470 AbstractCegarLoop]: Abstraction has 3842 states and 12952 transitions. [2022-03-15 17:08:42,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:42,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3842 states and 12952 transitions. [2022-03-15 17:08:42,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:42,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:42,588 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] [2022-03-15 17:08:42,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 17:08:42,588 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:42,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:42,589 INFO L85 PathProgramCache]: Analyzing trace with hash 978906908, now seen corresponding path program 72 times [2022-03-15 17:08:42,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:42,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106347292] [2022-03-15 17:08:42,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:42,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:42,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:42,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106347292] [2022-03-15 17:08:42,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106347292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:42,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:42,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:42,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877878108] [2022-03-15 17:08:42,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:42,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:42,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:42,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:42,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:42,859 INFO L87 Difference]: Start difference. First operand 3842 states and 12952 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:44,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:44,365 INFO L93 Difference]: Finished difference Result 5803 states and 19576 transitions. [2022-03-15 17:08:44,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:08:44,365 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:44,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:44,376 INFO L225 Difference]: With dead ends: 5803 [2022-03-15 17:08:44,376 INFO L226 Difference]: Without dead ends: 5748 [2022-03-15 17:08:44,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=250, Invalid=2402, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:08:44,377 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 432 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:44,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1821 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:44,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5748 states. [2022-03-15 17:08:44,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5748 to 3850. [2022-03-15 17:08:44,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3849 states have (on average 3.3712652637048586) internal successors, (12976), 3849 states have internal predecessors, (12976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:44,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 12976 transitions. [2022-03-15 17:08:44,436 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 12976 transitions. Word has length 39 [2022-03-15 17:08:44,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:44,436 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 12976 transitions. [2022-03-15 17:08:44,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:44,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 12976 transitions. [2022-03-15 17:08:44,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:44,441 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:44,441 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] [2022-03-15 17:08:44,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 17:08:44,441 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:44,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:44,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2143408166, now seen corresponding path program 73 times [2022-03-15 17:08:44,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:44,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978842594] [2022-03-15 17:08:44,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:44,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:44,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:44,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978842594] [2022-03-15 17:08:44,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978842594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:44,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:44,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:44,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949754855] [2022-03-15 17:08:44,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:44,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:44,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:44,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:44,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:44,682 INFO L87 Difference]: Start difference. First operand 3850 states and 12976 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:46,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:46,445 INFO L93 Difference]: Finished difference Result 6664 states and 22510 transitions. [2022-03-15 17:08:46,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 17:08:46,445 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:46,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:46,459 INFO L225 Difference]: With dead ends: 6664 [2022-03-15 17:08:46,459 INFO L226 Difference]: Without dead ends: 6604 [2022-03-15 17:08:46,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=281, Invalid=2911, Unknown=0, NotChecked=0, Total=3192 [2022-03-15 17:08:46,460 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 462 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:46,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 2208 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:08:46,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6604 states. [2022-03-15 17:08:46,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6604 to 3848. [2022-03-15 17:08:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.371718221991162) internal successors, (12971), 3847 states have internal predecessors, (12971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:46,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12971 transitions. [2022-03-15 17:08:46,525 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12971 transitions. Word has length 39 [2022-03-15 17:08:46,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:46,525 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 12971 transitions. [2022-03-15 17:08:46,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:46,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12971 transitions. [2022-03-15 17:08:46,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:46,530 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:46,530 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] [2022-03-15 17:08:46,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-15 17:08:46,531 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:46,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:46,531 INFO L85 PathProgramCache]: Analyzing trace with hash 274155528, now seen corresponding path program 74 times [2022-03-15 17:08:46,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:46,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416231728] [2022-03-15 17:08:46,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:46,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:46,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:46,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416231728] [2022-03-15 17:08:46,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416231728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:46,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:46,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:46,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289997340] [2022-03-15 17:08:46,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:46,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:46,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:46,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:46,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:46,778 INFO L87 Difference]: Start difference. First operand 3848 states and 12971 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:48,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:48,234 INFO L93 Difference]: Finished difference Result 5772 states and 19530 transitions. [2022-03-15 17:08:48,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 17:08:48,235 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:48,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:48,246 INFO L225 Difference]: With dead ends: 5772 [2022-03-15 17:08:48,246 INFO L226 Difference]: Without dead ends: 5681 [2022-03-15 17:08:48,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=235, Invalid=2315, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 17:08:48,246 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 417 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:48,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 1894 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:08:48,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5681 states. [2022-03-15 17:08:48,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5681 to 3848. [2022-03-15 17:08:48,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.3701585651156747) internal successors, (12965), 3847 states have internal predecessors, (12965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:48,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12965 transitions. [2022-03-15 17:08:48,330 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12965 transitions. Word has length 39 [2022-03-15 17:08:48,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:48,330 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 12965 transitions. [2022-03-15 17:08:48,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:48,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12965 transitions. [2022-03-15 17:08:48,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:48,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:48,335 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] [2022-03-15 17:08:48,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-15 17:08:48,335 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:48,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:48,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1228326678, now seen corresponding path program 75 times [2022-03-15 17:08:48,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:48,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009385609] [2022-03-15 17:08:48,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:48,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:48,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:48,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009385609] [2022-03-15 17:08:48,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009385609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:48,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:48,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:48,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787818009] [2022-03-15 17:08:48,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:48,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:48,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:48,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:48,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:48,579 INFO L87 Difference]: Start difference. First operand 3848 states and 12965 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:50,259 INFO L93 Difference]: Finished difference Result 6585 states and 22332 transitions. [2022-03-15 17:08:50,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:08:50,259 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:50,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:50,272 INFO L225 Difference]: With dead ends: 6585 [2022-03-15 17:08:50,273 INFO L226 Difference]: Without dead ends: 6469 [2022-03-15 17:08:50,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=260, Invalid=2710, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 17:08:50,273 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 429 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 2891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:50,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2290 Invalid, 2891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:08:50,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6469 states. [2022-03-15 17:08:50,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6469 to 3826. [2022-03-15 17:08:50,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3825 states have (on average 3.3762091503267975) internal successors, (12914), 3825 states have internal predecessors, (12914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 12914 transitions. [2022-03-15 17:08:50,335 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 12914 transitions. Word has length 39 [2022-03-15 17:08:50,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:50,335 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 12914 transitions. [2022-03-15 17:08:50,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:50,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 12914 transitions. [2022-03-15 17:08:50,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:50,340 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:50,340 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] [2022-03-15 17:08:50,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 17:08:50,340 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:50,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:50,341 INFO L85 PathProgramCache]: Analyzing trace with hash -599093414, now seen corresponding path program 76 times [2022-03-15 17:08:50,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:50,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414633213] [2022-03-15 17:08:50,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:50,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:50,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:50,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414633213] [2022-03-15 17:08:50,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414633213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:50,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:50,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:50,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073924625] [2022-03-15 17:08:50,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:50,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:50,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:50,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:50,602 INFO L87 Difference]: Start difference. First operand 3826 states and 12914 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:51,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:51,897 INFO L93 Difference]: Finished difference Result 5481 states and 18673 transitions. [2022-03-15 17:08:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 17:08:51,897 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:51,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:51,907 INFO L225 Difference]: With dead ends: 5481 [2022-03-15 17:08:51,907 INFO L226 Difference]: Without dead ends: 5414 [2022-03-15 17:08:51,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1959, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 17:08:51,908 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 347 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:51,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1661 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:08:51,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5414 states. [2022-03-15 17:08:51,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5414 to 3878. [2022-03-15 17:08:51,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 3877 states have (on average 3.3660046427650245) internal successors, (13050), 3877 states have internal predecessors, (13050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 13050 transitions. [2022-03-15 17:08:51,965 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 13050 transitions. Word has length 39 [2022-03-15 17:08:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:51,965 INFO L470 AbstractCegarLoop]: Abstraction has 3878 states and 13050 transitions. [2022-03-15 17:08:51,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 13050 transitions. [2022-03-15 17:08:51,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:51,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:51,970 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] [2022-03-15 17:08:51,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 17:08:51,971 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:51,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:51,971 INFO L85 PathProgramCache]: Analyzing trace with hash -771236632, now seen corresponding path program 77 times [2022-03-15 17:08:51,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:51,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117230593] [2022-03-15 17:08:51,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:51,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:52,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:52,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117230593] [2022-03-15 17:08:52,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117230593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:52,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:52,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:52,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549779428] [2022-03-15 17:08:52,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:52,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:52,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:52,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:52,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:52,210 INFO L87 Difference]: Start difference. First operand 3878 states and 13050 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:53,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:53,499 INFO L93 Difference]: Finished difference Result 5469 states and 18633 transitions. [2022-03-15 17:08:53,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-15 17:08:53,500 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:53,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:53,510 INFO L225 Difference]: With dead ends: 5469 [2022-03-15 17:08:53,510 INFO L226 Difference]: Without dead ends: 5406 [2022-03-15 17:08:53,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=1961, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 17:08:53,511 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 344 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:53,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1690 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:08:53,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2022-03-15 17:08:53,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 3870. [2022-03-15 17:08:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 3869 states have (on average 3.3667614370638406) internal successors, (13026), 3869 states have internal predecessors, (13026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 13026 transitions. [2022-03-15 17:08:53,572 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 13026 transitions. Word has length 39 [2022-03-15 17:08:53,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:53,572 INFO L470 AbstractCegarLoop]: Abstraction has 3870 states and 13026 transitions. [2022-03-15 17:08:53,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 13026 transitions. [2022-03-15 17:08:53,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:53,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:53,577 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] [2022-03-15 17:08:53,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-15 17:08:53,577 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:53,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:53,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1720896508, now seen corresponding path program 78 times [2022-03-15 17:08:53,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:53,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435792867] [2022-03-15 17:08:53,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:53,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:53,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:53,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435792867] [2022-03-15 17:08:53,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435792867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:53,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:53,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:08:53,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913392219] [2022-03-15 17:08:53,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:53,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:08:53,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:53,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:08:53,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:08:53,822 INFO L87 Difference]: Start difference. First operand 3870 states and 13026 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:55,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:55,119 INFO L93 Difference]: Finished difference Result 5477 states and 18645 transitions. [2022-03-15 17:08:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-15 17:08:55,119 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:55,130 INFO L225 Difference]: With dead ends: 5477 [2022-03-15 17:08:55,130 INFO L226 Difference]: Without dead ends: 5334 [2022-03-15 17:08:55,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 17:08:55,131 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 336 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:55,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1763 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:08:55,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-03-15 17:08:55,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 3818. [2022-03-15 17:08:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3817 states have (on average 3.378045585538381) internal successors, (12894), 3817 states have internal predecessors, (12894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 12894 transitions. [2022-03-15 17:08:55,186 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 12894 transitions. Word has length 39 [2022-03-15 17:08:55,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:55,186 INFO L470 AbstractCegarLoop]: Abstraction has 3818 states and 12894 transitions. [2022-03-15 17:08:55,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 12894 transitions. [2022-03-15 17:08:55,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:55,192 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:55,192 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] [2022-03-15 17:08:55,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-15 17:08:55,193 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:55,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:55,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1555263514, now seen corresponding path program 79 times [2022-03-15 17:08:55,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:55,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937239586] [2022-03-15 17:08:55,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:55,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:55,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:55,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937239586] [2022-03-15 17:08:55,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937239586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:55,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:55,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:08:55,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511397553] [2022-03-15 17:08:55,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:55,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:08:55,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:55,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:08:55,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:08:55,468 INFO L87 Difference]: Start difference. First operand 3818 states and 12894 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:58,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:08:58,987 INFO L93 Difference]: Finished difference Result 9174 states and 31032 transitions. [2022-03-15 17:08:58,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-15 17:08:58,987 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:08:58,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:08:59,005 INFO L225 Difference]: With dead ends: 9174 [2022-03-15 17:08:59,005 INFO L226 Difference]: Without dead ends: 9044 [2022-03-15 17:08:59,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3103 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=708, Invalid=8604, Unknown=0, NotChecked=0, Total=9312 [2022-03-15 17:08:59,006 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 598 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 4762 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 3510 SdHoareTripleChecker+Invalid, 4851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:08:59,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [598 Valid, 3510 Invalid, 4851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4762 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:08:59,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2022-03-15 17:08:59,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 4543. [2022-03-15 17:08:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4543 states, 4542 states have (on average 3.403566710700132) internal successors, (15459), 4542 states have internal predecessors, (15459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:59,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4543 states to 4543 states and 15459 transitions. [2022-03-15 17:08:59,085 INFO L78 Accepts]: Start accepts. Automaton has 4543 states and 15459 transitions. Word has length 39 [2022-03-15 17:08:59,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:08:59,085 INFO L470 AbstractCegarLoop]: Abstraction has 4543 states and 15459 transitions. [2022-03-15 17:08:59,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:08:59,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4543 states and 15459 transitions. [2022-03-15 17:08:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:08:59,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:08:59,092 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] [2022-03-15 17:08:59,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-15 17:08:59,092 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:08:59,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:08:59,092 INFO L85 PathProgramCache]: Analyzing trace with hash -164352456, now seen corresponding path program 80 times [2022-03-15 17:08:59,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:08:59,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924118939] [2022-03-15 17:08:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:08:59,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:08:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:08:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:08:59,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:08:59,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924118939] [2022-03-15 17:08:59,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924118939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:08:59,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:08:59,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:08:59,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292042589] [2022-03-15 17:08:59,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:08:59,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:08:59,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:08:59,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:08:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:08:59,321 INFO L87 Difference]: Start difference. First operand 4543 states and 15459 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:03,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:03,999 INFO L93 Difference]: Finished difference Result 11582 states and 39219 transitions. [2022-03-15 17:09:03,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-15 17:09:03,999 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:03,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:04,022 INFO L225 Difference]: With dead ends: 11582 [2022-03-15 17:09:04,022 INFO L226 Difference]: Without dead ends: 11476 [2022-03-15 17:09:04,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6011 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1123, Invalid=15133, Unknown=0, NotChecked=0, Total=16256 [2022-03-15 17:09:04,024 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 725 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 5307 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 5451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 5307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:04,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 3640 Invalid, 5451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 5307 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 17:09:04,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11476 states. [2022-03-15 17:09:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11476 to 5005. [2022-03-15 17:09:04,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5005 states, 5004 states have (on average 3.4332533972821744) internal successors, (17180), 5004 states have internal predecessors, (17180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5005 states to 5005 states and 17180 transitions. [2022-03-15 17:09:04,130 INFO L78 Accepts]: Start accepts. Automaton has 5005 states and 17180 transitions. Word has length 39 [2022-03-15 17:09:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:04,130 INFO L470 AbstractCegarLoop]: Abstraction has 5005 states and 17180 transitions. [2022-03-15 17:09:04,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:04,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5005 states and 17180 transitions. [2022-03-15 17:09:04,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:04,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:04,137 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] [2022-03-15 17:09:04,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-15 17:09:04,137 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:04,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:04,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1944950758, now seen corresponding path program 81 times [2022-03-15 17:09:04,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:04,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349471888] [2022-03-15 17:09:04,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:04,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:04,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:04,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349471888] [2022-03-15 17:09:04,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349471888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:04,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:04,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:09:04,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998836668] [2022-03-15 17:09:04,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:04,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:09:04,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:04,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:09:04,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:09:04,390 INFO L87 Difference]: Start difference. First operand 5005 states and 17180 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:09,299 INFO L93 Difference]: Finished difference Result 12191 states and 41382 transitions. [2022-03-15 17:09:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-15 17:09:09,299 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:09,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:09,323 INFO L225 Difference]: With dead ends: 12191 [2022-03-15 17:09:09,324 INFO L226 Difference]: Without dead ends: 12052 [2022-03-15 17:09:09,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6441 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1171, Invalid=16121, Unknown=0, NotChecked=0, Total=17292 [2022-03-15 17:09:09,324 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 731 mSDsluCounter, 3762 mSDsCounter, 0 mSdLazyCounter, 5463 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 5629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 5463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:09,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 3700 Invalid, 5629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 5463 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 17:09:09,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12052 states. [2022-03-15 17:09:09,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12052 to 5161. [2022-03-15 17:09:09,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 3.442829457364341) internal successors, (17765), 5160 states have internal predecessors, (17765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 17765 transitions. [2022-03-15 17:09:09,428 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 17765 transitions. Word has length 39 [2022-03-15 17:09:09,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:09,428 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 17765 transitions. [2022-03-15 17:09:09,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 17765 transitions. [2022-03-15 17:09:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:09,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:09,436 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] [2022-03-15 17:09:09,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-15 17:09:09,436 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:09,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:09,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1941200922, now seen corresponding path program 82 times [2022-03-15 17:09:09,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:09,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461191253] [2022-03-15 17:09:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:09,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:09,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:09,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461191253] [2022-03-15 17:09:09,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461191253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:09,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:09,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:09:09,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927608488] [2022-03-15 17:09:09,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:09,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:09:09,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:09,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:09:09,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:09:09,666 INFO L87 Difference]: Start difference. First operand 5161 states and 17765 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:14,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:14,899 INFO L93 Difference]: Finished difference Result 12631 states and 43057 transitions. [2022-03-15 17:09:14,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-03-15 17:09:14,899 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:14,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:14,925 INFO L225 Difference]: With dead ends: 12631 [2022-03-15 17:09:14,925 INFO L226 Difference]: Without dead ends: 12414 [2022-03-15 17:09:14,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6976 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1168, Invalid=17464, Unknown=0, NotChecked=0, Total=18632 [2022-03-15 17:09:14,926 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 720 mSDsluCounter, 4236 mSDsCounter, 0 mSdLazyCounter, 6316 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 4247 SdHoareTripleChecker+Invalid, 6482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 6316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:14,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 4247 Invalid, 6482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 6316 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-15 17:09:14,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12414 states. [2022-03-15 17:09:15,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12414 to 5293. [2022-03-15 17:09:15,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 3.4569160997732427) internal successors, (18294), 5292 states have internal predecessors, (18294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:15,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 18294 transitions. [2022-03-15 17:09:15,040 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 18294 transitions. Word has length 39 [2022-03-15 17:09:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:15,040 INFO L470 AbstractCegarLoop]: Abstraction has 5293 states and 18294 transitions. [2022-03-15 17:09:15,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 18294 transitions. [2022-03-15 17:09:15,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:15,048 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:15,048 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] [2022-03-15 17:09:15,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-15 17:09:15,048 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:15,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:15,048 INFO L85 PathProgramCache]: Analyzing trace with hash -515814522, now seen corresponding path program 83 times [2022-03-15 17:09:15,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:15,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287119684] [2022-03-15 17:09:15,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:15,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:15,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:15,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:15,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287119684] [2022-03-15 17:09:15,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287119684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:15,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:15,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:15,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017906101] [2022-03-15 17:09:15,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:15,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:15,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:15,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:15,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:15,295 INFO L87 Difference]: Start difference. First operand 5293 states and 18294 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:19,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:19,201 INFO L93 Difference]: Finished difference Result 10886 states and 37113 transitions. [2022-03-15 17:09:19,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-03-15 17:09:19,202 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:19,223 INFO L225 Difference]: With dead ends: 10886 [2022-03-15 17:09:19,223 INFO L226 Difference]: Without dead ends: 10819 [2022-03-15 17:09:19,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3761 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=796, Invalid=10334, Unknown=0, NotChecked=0, Total=11130 [2022-03-15 17:09:19,225 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 643 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 5173 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 5277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 5173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:19,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 3911 Invalid, 5277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 5173 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 17:09:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10819 states. [2022-03-15 17:09:19,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10819 to 5327. [2022-03-15 17:09:19,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 3.4555013143071722) internal successors, (18404), 5326 states have internal predecessors, (18404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:19,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 18404 transitions. [2022-03-15 17:09:19,356 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 18404 transitions. Word has length 39 [2022-03-15 17:09:19,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:19,356 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 18404 transitions. [2022-03-15 17:09:19,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:19,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 18404 transitions. [2022-03-15 17:09:19,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:19,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:19,363 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] [2022-03-15 17:09:19,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-15 17:09:19,363 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:19,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:19,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2059536804, now seen corresponding path program 84 times [2022-03-15 17:09:19,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:19,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840188395] [2022-03-15 17:09:19,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:19,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:19,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:19,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:19,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840188395] [2022-03-15 17:09:19,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840188395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:19,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:19,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:19,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020194517] [2022-03-15 17:09:19,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:19,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:19,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:19,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:19,601 INFO L87 Difference]: Start difference. First operand 5327 states and 18404 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:24,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:24,754 INFO L93 Difference]: Finished difference Result 12407 states and 42028 transitions. [2022-03-15 17:09:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-15 17:09:24,754 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:24,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:24,780 INFO L225 Difference]: With dead ends: 12407 [2022-03-15 17:09:24,780 INFO L226 Difference]: Without dead ends: 12364 [2022-03-15 17:09:24,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6917 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1217, Invalid=17415, Unknown=0, NotChecked=0, Total=18632 [2022-03-15 17:09:24,781 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 756 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 5769 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 5926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 5769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:24,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 4059 Invalid, 5926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 5769 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-15 17:09:24,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12364 states. [2022-03-15 17:09:24,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12364 to 5367. [2022-03-15 17:09:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5367 states, 5366 states have (on average 3.4549012299664557) internal successors, (18539), 5366 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5367 states to 5367 states and 18539 transitions. [2022-03-15 17:09:24,893 INFO L78 Accepts]: Start accepts. Automaton has 5367 states and 18539 transitions. Word has length 39 [2022-03-15 17:09:24,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:24,893 INFO L470 AbstractCegarLoop]: Abstraction has 5367 states and 18539 transitions. [2022-03-15 17:09:24,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:24,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5367 states and 18539 transitions. [2022-03-15 17:09:24,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:24,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:24,900 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] [2022-03-15 17:09:24,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-15 17:09:24,901 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:24,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:24,901 INFO L85 PathProgramCache]: Analyzing trace with hash 278938502, now seen corresponding path program 85 times [2022-03-15 17:09:24,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:24,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855298297] [2022-03-15 17:09:24,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:24,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:25,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:25,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855298297] [2022-03-15 17:09:25,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855298297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:25,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:25,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:25,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621661474] [2022-03-15 17:09:25,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:25,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:25,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:25,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:25,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:25,145 INFO L87 Difference]: Start difference. First operand 5367 states and 18539 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:30,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:30,345 INFO L93 Difference]: Finished difference Result 12963 states and 44015 transitions. [2022-03-15 17:09:30,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-03-15 17:09:30,346 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:30,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:30,371 INFO L225 Difference]: With dead ends: 12963 [2022-03-15 17:09:30,371 INFO L226 Difference]: Without dead ends: 12887 [2022-03-15 17:09:30,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7138 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1246, Invalid=17936, Unknown=0, NotChecked=0, Total=19182 [2022-03-15 17:09:30,372 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 755 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 5918 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 6096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 5918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:30,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 4090 Invalid, 6096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 5918 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-15 17:09:30,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12887 states. [2022-03-15 17:09:30,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12887 to 5329. [2022-03-15 17:09:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5329 states, 5328 states have (on average 3.459834834834835) internal successors, (18434), 5328 states have internal predecessors, (18434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5329 states to 5329 states and 18434 transitions. [2022-03-15 17:09:30,479 INFO L78 Accepts]: Start accepts. Automaton has 5329 states and 18434 transitions. Word has length 39 [2022-03-15 17:09:30,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:30,479 INFO L470 AbstractCegarLoop]: Abstraction has 5329 states and 18434 transitions. [2022-03-15 17:09:30,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:30,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5329 states and 18434 transitions. [2022-03-15 17:09:30,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:30,487 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:30,487 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] [2022-03-15 17:09:30,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-15 17:09:30,487 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:30,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:30,487 INFO L85 PathProgramCache]: Analyzing trace with hash 899372902, now seen corresponding path program 86 times [2022-03-15 17:09:30,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:30,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087940340] [2022-03-15 17:09:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:30,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:30,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:30,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:30,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087940340] [2022-03-15 17:09:30,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087940340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:30,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:30,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:30,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173060083] [2022-03-15 17:09:30,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:30,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:30,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:30,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:30,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:30,724 INFO L87 Difference]: Start difference. First operand 5329 states and 18434 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:33,182 INFO L93 Difference]: Finished difference Result 9492 states and 32707 transitions. [2022-03-15 17:09:33,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-03-15 17:09:33,182 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:33,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:33,201 INFO L225 Difference]: With dead ends: 9492 [2022-03-15 17:09:33,201 INFO L226 Difference]: Without dead ends: 9425 [2022-03-15 17:09:33,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1533 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=454, Invalid=4948, Unknown=0, NotChecked=0, Total=5402 [2022-03-15 17:09:33,202 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 518 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 3726 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:33,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [518 Valid, 2665 Invalid, 3810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3726 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:09:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9425 states. [2022-03-15 17:09:33,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9425 to 5341. [2022-03-15 17:09:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5340 states have (on average 3.4569288389513106) internal successors, (18460), 5340 states have internal predecessors, (18460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 18460 transitions. [2022-03-15 17:09:33,293 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 18460 transitions. Word has length 39 [2022-03-15 17:09:33,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:33,293 INFO L470 AbstractCegarLoop]: Abstraction has 5341 states and 18460 transitions. [2022-03-15 17:09:33,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 18460 transitions. [2022-03-15 17:09:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:33,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:33,301 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] [2022-03-15 17:09:33,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-15 17:09:33,301 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:33,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:33,301 INFO L85 PathProgramCache]: Analyzing trace with hash 768778054, now seen corresponding path program 87 times [2022-03-15 17:09:33,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:33,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783617174] [2022-03-15 17:09:33,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:33,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:33,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:33,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783617174] [2022-03-15 17:09:33,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783617174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:33,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:33,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:33,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099485105] [2022-03-15 17:09:33,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:33,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:33,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:33,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:33,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:33,539 INFO L87 Difference]: Start difference. First operand 5341 states and 18460 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:35,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:35,718 INFO L93 Difference]: Finished difference Result 9000 states and 30945 transitions. [2022-03-15 17:09:35,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-15 17:09:35,718 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:35,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:35,736 INFO L225 Difference]: With dead ends: 9000 [2022-03-15 17:09:35,736 INFO L226 Difference]: Without dead ends: 8937 [2022-03-15 17:09:35,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=431, Invalid=4539, Unknown=0, NotChecked=0, Total=4970 [2022-03-15 17:09:35,737 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 487 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:35,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 2321 Invalid, 3315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:09:35,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8937 states. [2022-03-15 17:09:35,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8937 to 5333. [2022-03-15 17:09:35,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5333 states, 5332 states have (on average 3.458364591147787) internal successors, (18440), 5332 states have internal predecessors, (18440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 18440 transitions. [2022-03-15 17:09:35,858 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 18440 transitions. Word has length 39 [2022-03-15 17:09:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:35,858 INFO L470 AbstractCegarLoop]: Abstraction has 5333 states and 18440 transitions. [2022-03-15 17:09:35,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 18440 transitions. [2022-03-15 17:09:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:35,865 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:35,865 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] [2022-03-15 17:09:35,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-15 17:09:35,865 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:35,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:35,866 INFO L85 PathProgramCache]: Analyzing trace with hash 633099462, now seen corresponding path program 88 times [2022-03-15 17:09:35,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:35,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239088332] [2022-03-15 17:09:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:35,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:36,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:36,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:36,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239088332] [2022-03-15 17:09:36,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239088332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:36,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:36,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:36,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672207706] [2022-03-15 17:09:36,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:36,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:36,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:36,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:36,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:36,100 INFO L87 Difference]: Start difference. First operand 5333 states and 18440 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:39,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:39,296 INFO L93 Difference]: Finished difference Result 9823 states and 33613 transitions. [2022-03-15 17:09:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-15 17:09:39,296 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:39,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:39,315 INFO L225 Difference]: With dead ends: 9823 [2022-03-15 17:09:39,316 INFO L226 Difference]: Without dead ends: 9780 [2022-03-15 17:09:39,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3371 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=783, Invalid=9317, Unknown=0, NotChecked=0, Total=10100 [2022-03-15 17:09:39,317 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 634 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 3574 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 3713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 3574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:39,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 2439 Invalid, 3713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 3574 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:09:39,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9780 states. [2022-03-15 17:09:39,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 5345. [2022-03-15 17:09:39,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5345 states, 5344 states have (on average 3.456961077844311) internal successors, (18474), 5344 states have internal predecessors, (18474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5345 states to 5345 states and 18474 transitions. [2022-03-15 17:09:39,440 INFO L78 Accepts]: Start accepts. Automaton has 5345 states and 18474 transitions. Word has length 39 [2022-03-15 17:09:39,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:39,440 INFO L470 AbstractCegarLoop]: Abstraction has 5345 states and 18474 transitions. [2022-03-15 17:09:39,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:39,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5345 states and 18474 transitions. [2022-03-15 17:09:39,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:39,447 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:39,447 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] [2022-03-15 17:09:39,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-15 17:09:39,448 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:39,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:39,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1147498840, now seen corresponding path program 89 times [2022-03-15 17:09:39,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:39,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172965734] [2022-03-15 17:09:39,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:39,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:39,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:39,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172965734] [2022-03-15 17:09:39,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172965734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:39,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:39,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:39,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819223951] [2022-03-15 17:09:39,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:39,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:39,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:39,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:39,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:39,699 INFO L87 Difference]: Start difference. First operand 5345 states and 18474 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:43,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:43,277 INFO L93 Difference]: Finished difference Result 10921 states and 37303 transitions. [2022-03-15 17:09:43,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-15 17:09:43,277 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:43,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:43,298 INFO L225 Difference]: With dead ends: 10921 [2022-03-15 17:09:43,298 INFO L226 Difference]: Without dead ends: 10869 [2022-03-15 17:09:43,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4056 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=848, Invalid=10924, Unknown=0, NotChecked=0, Total=11772 [2022-03-15 17:09:43,299 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 675 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 4176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:43,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 2903 Invalid, 4176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:09:43,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2022-03-15 17:09:43,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 5333. [2022-03-15 17:09:43,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5333 states, 5332 states have (on average 3.458364591147787) internal successors, (18440), 5332 states have internal predecessors, (18440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 18440 transitions. [2022-03-15 17:09:43,395 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 18440 transitions. Word has length 39 [2022-03-15 17:09:43,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:43,395 INFO L470 AbstractCegarLoop]: Abstraction has 5333 states and 18440 transitions. [2022-03-15 17:09:43,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:43,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 18440 transitions. [2022-03-15 17:09:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:43,402 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:43,402 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] [2022-03-15 17:09:43,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-15 17:09:43,403 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:43,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:43,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1551583032, now seen corresponding path program 90 times [2022-03-15 17:09:43,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:43,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070324533] [2022-03-15 17:09:43,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:43,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:43,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:43,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070324533] [2022-03-15 17:09:43,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070324533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:43,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:43,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:43,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380913178] [2022-03-15 17:09:43,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:43,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:43,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:43,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:43,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:43,642 INFO L87 Difference]: Start difference. First operand 5333 states and 18440 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:45,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:45,948 INFO L93 Difference]: Finished difference Result 9138 states and 31246 transitions. [2022-03-15 17:09:45,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-15 17:09:45,948 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:45,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:45,965 INFO L225 Difference]: With dead ends: 9138 [2022-03-15 17:09:45,966 INFO L226 Difference]: Without dead ends: 9083 [2022-03-15 17:09:45,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1595 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=475, Invalid=5075, Unknown=0, NotChecked=0, Total=5550 [2022-03-15 17:09:45,966 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 509 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 3285 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:45,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 2321 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3285 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:09:45,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9083 states. [2022-03-15 17:09:46,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9083 to 5335. [2022-03-15 17:09:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 3.4576302962129732) internal successors, (18443), 5334 states have internal predecessors, (18443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:46,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 18443 transitions. [2022-03-15 17:09:46,052 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 18443 transitions. Word has length 39 [2022-03-15 17:09:46,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:46,052 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 18443 transitions. [2022-03-15 17:09:46,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:46,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 18443 transitions. [2022-03-15 17:09:46,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:46,059 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:46,060 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] [2022-03-15 17:09:46,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-15 17:09:46,060 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:46,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:46,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1570732042, now seen corresponding path program 91 times [2022-03-15 17:09:46,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:46,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477548435] [2022-03-15 17:09:46,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:46,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:46,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:46,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:46,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477548435] [2022-03-15 17:09:46,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477548435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:46,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:46,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:46,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737206894] [2022-03-15 17:09:46,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:46,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:46,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:46,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:46,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:46,293 INFO L87 Difference]: Start difference. First operand 5335 states and 18443 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:49,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:49,044 INFO L93 Difference]: Finished difference Result 10291 states and 35128 transitions. [2022-03-15 17:09:49,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-15 17:09:49,045 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:49,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:49,064 INFO L225 Difference]: With dead ends: 10291 [2022-03-15 17:09:49,065 INFO L226 Difference]: Without dead ends: 10165 [2022-03-15 17:09:49,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2127 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=553, Invalid=6419, Unknown=0, NotChecked=0, Total=6972 [2022-03-15 17:09:49,065 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 545 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 3992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:49,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 2931 Invalid, 3992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:09:49,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10165 states. [2022-03-15 17:09:49,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10165 to 5415. [2022-03-15 17:09:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 3.4599187292205396) internal successors, (18732), 5414 states have internal predecessors, (18732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 18732 transitions. [2022-03-15 17:09:49,164 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 18732 transitions. Word has length 39 [2022-03-15 17:09:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:49,164 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 18732 transitions. [2022-03-15 17:09:49,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:49,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 18732 transitions. [2022-03-15 17:09:49,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:49,171 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:49,171 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] [2022-03-15 17:09:49,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-15 17:09:49,171 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:49,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:49,172 INFO L85 PathProgramCache]: Analyzing trace with hash 671316280, now seen corresponding path program 92 times [2022-03-15 17:09:49,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:49,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418563535] [2022-03-15 17:09:49,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:49,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:49,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:49,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418563535] [2022-03-15 17:09:49,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418563535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:49,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:49,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:49,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800691630] [2022-03-15 17:09:49,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:49,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:49,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:49,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:49,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:49,410 INFO L87 Difference]: Start difference. First operand 5415 states and 18732 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:55,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:55,019 INFO L93 Difference]: Finished difference Result 12683 states and 43069 transitions. [2022-03-15 17:09:55,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-15 17:09:55,020 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:55,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:55,046 INFO L225 Difference]: With dead ends: 12683 [2022-03-15 17:09:55,046 INFO L226 Difference]: Without dead ends: 12546 [2022-03-15 17:09:55,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7828 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1236, Invalid=19644, Unknown=0, NotChecked=0, Total=20880 [2022-03-15 17:09:55,048 INFO L933 BasicCegarLoop]: 474 mSDtfsCounter, 778 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 6979 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 7158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 6979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:55,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 4749 Invalid, 7158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 6979 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-15 17:09:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12546 states. [2022-03-15 17:09:55,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12546 to 5427. [2022-03-15 17:09:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 3.4600073719130116) internal successors, (18774), 5426 states have internal predecessors, (18774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 18774 transitions. [2022-03-15 17:09:55,200 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 18774 transitions. Word has length 39 [2022-03-15 17:09:55,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:55,200 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 18774 transitions. [2022-03-15 17:09:55,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:55,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 18774 transitions. [2022-03-15 17:09:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:55,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:55,207 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] [2022-03-15 17:09:55,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-15 17:09:55,207 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:55,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash -823574620, now seen corresponding path program 93 times [2022-03-15 17:09:55,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:55,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80364252] [2022-03-15 17:09:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:55,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:55,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:55,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80364252] [2022-03-15 17:09:55,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80364252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:55,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:55,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:55,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151674476] [2022-03-15 17:09:55,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:55,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:55,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:55,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:55,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:55,439 INFO L87 Difference]: Start difference. First operand 5427 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:58,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:09:58,515 INFO L93 Difference]: Finished difference Result 9928 states and 33931 transitions. [2022-03-15 17:09:58,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-15 17:09:58,516 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:09:58,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:09:58,535 INFO L225 Difference]: With dead ends: 9928 [2022-03-15 17:09:58,536 INFO L226 Difference]: Without dead ends: 9864 [2022-03-15 17:09:58,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3135 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=733, Invalid=8773, Unknown=0, NotChecked=0, Total=9506 [2022-03-15 17:09:58,537 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 629 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 3577 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 3710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:09:58,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 2430 Invalid, 3710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3577 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:09:58,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2022-03-15 17:09:58,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 5419. [2022-03-15 17:09:58,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 3.4599483204134365) internal successors, (18746), 5418 states have internal predecessors, (18746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:58,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 18746 transitions. [2022-03-15 17:09:58,662 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 18746 transitions. Word has length 39 [2022-03-15 17:09:58,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:09:58,662 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 18746 transitions. [2022-03-15 17:09:58,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:09:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 18746 transitions. [2022-03-15 17:09:58,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:09:58,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:09:58,669 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] [2022-03-15 17:09:58,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-15 17:09:58,669 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:09:58,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:09:58,670 INFO L85 PathProgramCache]: Analyzing trace with hash 94908950, now seen corresponding path program 94 times [2022-03-15 17:09:58,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:09:58,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964146373] [2022-03-15 17:09:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:09:58,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:09:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:09:58,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:09:58,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:09:58,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964146373] [2022-03-15 17:09:58,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964146373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:09:58,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:09:58,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:09:58,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011043251] [2022-03-15 17:09:58,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:09:58,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:09:58,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:09:58,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:09:58,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:09:58,903 INFO L87 Difference]: Start difference. First operand 5419 states and 18746 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:01,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:01,126 INFO L93 Difference]: Finished difference Result 9190 states and 31423 transitions. [2022-03-15 17:10:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-15 17:10:01,126 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:01,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:01,145 INFO L225 Difference]: With dead ends: 9190 [2022-03-15 17:10:01,145 INFO L226 Difference]: Without dead ends: 9135 [2022-03-15 17:10:01,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=430, Invalid=4682, Unknown=0, NotChecked=0, Total=5112 [2022-03-15 17:10:01,146 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 497 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 3357 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 3438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:01,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 2371 Invalid, 3438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3357 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:10:01,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9135 states. [2022-03-15 17:10:01,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9135 to 5425. [2022-03-15 17:10:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5425 states, 5424 states have (on average 3.458517699115044) internal successors, (18759), 5424 states have internal predecessors, (18759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5425 states to 5425 states and 18759 transitions. [2022-03-15 17:10:01,275 INFO L78 Accepts]: Start accepts. Automaton has 5425 states and 18759 transitions. Word has length 39 [2022-03-15 17:10:01,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:01,275 INFO L470 AbstractCegarLoop]: Abstraction has 5425 states and 18759 transitions. [2022-03-15 17:10:01,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:01,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5425 states and 18759 transitions. [2022-03-15 17:10:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:01,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:01,282 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] [2022-03-15 17:10:01,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-15 17:10:01,283 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:01,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:01,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1267561172, now seen corresponding path program 95 times [2022-03-15 17:10:01,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:01,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845014100] [2022-03-15 17:10:01,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:01,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:01,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:01,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:01,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845014100] [2022-03-15 17:10:01,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845014100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:01,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:01,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:01,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760396606] [2022-03-15 17:10:01,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:01,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:01,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:01,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:01,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:01,518 INFO L87 Difference]: Start difference. First operand 5425 states and 18759 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:04,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:04,323 INFO L93 Difference]: Finished difference Result 10376 states and 35342 transitions. [2022-03-15 17:10:04,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-15 17:10:04,324 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:04,345 INFO L225 Difference]: With dead ends: 10376 [2022-03-15 17:10:04,345 INFO L226 Difference]: Without dead ends: 10316 [2022-03-15 17:10:04,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2258 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=568, Invalid=6742, Unknown=0, NotChecked=0, Total=7310 [2022-03-15 17:10:04,346 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 565 mSDsluCounter, 3182 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 4028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:04,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2942 Invalid, 4028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 3923 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:10:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10316 states. [2022-03-15 17:10:04,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10316 to 5423. [2022-03-15 17:10:04,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 3.4588712652157874) internal successors, (18754), 5422 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:04,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 18754 transitions. [2022-03-15 17:10:04,480 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 18754 transitions. Word has length 39 [2022-03-15 17:10:04,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:04,481 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 18754 transitions. [2022-03-15 17:10:04,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 18754 transitions. [2022-03-15 17:10:04,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:04,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:04,488 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] [2022-03-15 17:10:04,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-15 17:10:04,488 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:04,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash -812005370, now seen corresponding path program 96 times [2022-03-15 17:10:04,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:04,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749557443] [2022-03-15 17:10:04,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:04,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:04,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:04,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:04,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749557443] [2022-03-15 17:10:04,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749557443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:04,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:04,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:10:04,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029286416] [2022-03-15 17:10:04,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:04,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:10:04,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:04,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:10:04,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:10:04,725 INFO L87 Difference]: Start difference. First operand 5423 states and 18754 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:07,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:07,123 INFO L93 Difference]: Finished difference Result 10137 states and 34744 transitions. [2022-03-15 17:10:07,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-15 17:10:07,123 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:07,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:07,143 INFO L225 Difference]: With dead ends: 10137 [2022-03-15 17:10:07,143 INFO L226 Difference]: Without dead ends: 10061 [2022-03-15 17:10:07,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1705 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=464, Invalid=5236, Unknown=0, NotChecked=0, Total=5700 [2022-03-15 17:10:07,144 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 504 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 3456 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 3541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:07,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 2574 Invalid, 3541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3456 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:10:07,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10061 states. [2022-03-15 17:10:07,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10061 to 5431. [2022-03-15 17:10:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 3.4567219152854514) internal successors, (18770), 5430 states have internal predecessors, (18770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:07,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 18770 transitions. [2022-03-15 17:10:07,285 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 18770 transitions. Word has length 39 [2022-03-15 17:10:07,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:07,285 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 18770 transitions. [2022-03-15 17:10:07,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:07,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 18770 transitions. [2022-03-15 17:10:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:07,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:07,293 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] [2022-03-15 17:10:07,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-15 17:10:07,293 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:07,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:07,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1830058982, now seen corresponding path program 97 times [2022-03-15 17:10:07,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:07,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871757345] [2022-03-15 17:10:07,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:07,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:07,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:07,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:07,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871757345] [2022-03-15 17:10:07,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871757345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:07,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:07,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:07,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660607379] [2022-03-15 17:10:07,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:07,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:07,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:07,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:07,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:07,527 INFO L87 Difference]: Start difference. First operand 5431 states and 18770 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:10,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:10,249 INFO L93 Difference]: Finished difference Result 10263 states and 35075 transitions. [2022-03-15 17:10:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-15 17:10:10,250 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:10,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:10,271 INFO L225 Difference]: With dead ends: 10263 [2022-03-15 17:10:10,271 INFO L226 Difference]: Without dead ends: 10177 [2022-03-15 17:10:10,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2062 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=540, Invalid=6266, Unknown=0, NotChecked=0, Total=6806 [2022-03-15 17:10:10,272 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 547 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 3848 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 3951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:10,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 2889 Invalid, 3951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3848 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:10:10,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10177 states. [2022-03-15 17:10:10,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10177 to 5411. [2022-03-15 17:10:10,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 3.4598890942698706) internal successors, (18718), 5410 states have internal predecessors, (18718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 18718 transitions. [2022-03-15 17:10:10,402 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 18718 transitions. Word has length 39 [2022-03-15 17:10:10,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:10,402 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 18718 transitions. [2022-03-15 17:10:10,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 18718 transitions. [2022-03-15 17:10:10,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:10,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:10,410 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] [2022-03-15 17:10:10,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-15 17:10:10,410 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:10,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:10,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1437771772, now seen corresponding path program 98 times [2022-03-15 17:10:10,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:10,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303176995] [2022-03-15 17:10:10,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:10,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:10,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:10,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:10,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303176995] [2022-03-15 17:10:10,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303176995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:10,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:10,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:10:10,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096068961] [2022-03-15 17:10:10,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:10,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:10:10,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:10,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:10:10,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:10:10,660 INFO L87 Difference]: Start difference. First operand 5411 states and 18718 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:14,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:14,138 INFO L93 Difference]: Finished difference Result 10604 states and 36407 transitions. [2022-03-15 17:10:14,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-15 17:10:14,139 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:14,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:14,158 INFO L225 Difference]: With dead ends: 10604 [2022-03-15 17:10:14,158 INFO L226 Difference]: Without dead ends: 10460 [2022-03-15 17:10:14,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3017 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=690, Invalid=8430, Unknown=0, NotChecked=0, Total=9120 [2022-03-15 17:10:14,159 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 561 mSDsluCounter, 3625 mSDsCounter, 0 mSdLazyCounter, 4828 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 4911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 4828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:14,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 3563 Invalid, 4911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 4828 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:10:14,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10460 states. [2022-03-15 17:10:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10460 to 5619. [2022-03-15 17:10:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5619 states, 5618 states have (on average 3.450694197223211) internal successors, (19386), 5618 states have internal predecessors, (19386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:14,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5619 states to 5619 states and 19386 transitions. [2022-03-15 17:10:14,255 INFO L78 Accepts]: Start accepts. Automaton has 5619 states and 19386 transitions. Word has length 39 [2022-03-15 17:10:14,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:14,255 INFO L470 AbstractCegarLoop]: Abstraction has 5619 states and 19386 transitions. [2022-03-15 17:10:14,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:14,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5619 states and 19386 transitions. [2022-03-15 17:10:14,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:14,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:14,262 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] [2022-03-15 17:10:14,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-15 17:10:14,263 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:14,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:14,263 INFO L85 PathProgramCache]: Analyzing trace with hash -281844198, now seen corresponding path program 99 times [2022-03-15 17:10:14,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:14,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582120192] [2022-03-15 17:10:14,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:14,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:14,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:14,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:14,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582120192] [2022-03-15 17:10:14,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582120192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:14,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:14,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:10:14,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138700186] [2022-03-15 17:10:14,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:14,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:10:14,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:14,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:10:14,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:10:14,495 INFO L87 Difference]: Start difference. First operand 5619 states and 19386 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:19,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:19,131 INFO L93 Difference]: Finished difference Result 12549 states and 42583 transitions. [2022-03-15 17:10:19,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-03-15 17:10:19,132 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:19,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:19,158 INFO L225 Difference]: With dead ends: 12549 [2022-03-15 17:10:19,158 INFO L226 Difference]: Without dead ends: 12413 [2022-03-15 17:10:19,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5893 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1103, Invalid=14899, Unknown=0, NotChecked=0, Total=16002 [2022-03-15 17:10:19,160 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 690 mSDsluCounter, 3765 mSDsCounter, 0 mSdLazyCounter, 5370 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 3697 SdHoareTripleChecker+Invalid, 5510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 5370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:19,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 3697 Invalid, 5510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 5370 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 17:10:19,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12413 states. [2022-03-15 17:10:19,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12413 to 5767. [2022-03-15 17:10:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 5766 states have (on average 3.448664585501214) internal successors, (19885), 5766 states have internal predecessors, (19885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 19885 transitions. [2022-03-15 17:10:19,274 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 19885 transitions. Word has length 39 [2022-03-15 17:10:19,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:19,275 INFO L470 AbstractCegarLoop]: Abstraction has 5767 states and 19885 transitions. [2022-03-15 17:10:19,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 19885 transitions. [2022-03-15 17:10:19,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:19,304 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:19,304 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] [2022-03-15 17:10:19,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-15 17:10:19,304 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:19,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:19,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2062442500, now seen corresponding path program 100 times [2022-03-15 17:10:19,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:19,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802714621] [2022-03-15 17:10:19,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:19,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:19,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:19,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802714621] [2022-03-15 17:10:19,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802714621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:19,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:19,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:10:19,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43572977] [2022-03-15 17:10:19,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:19,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:10:19,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:10:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:10:19,521 INFO L87 Difference]: Start difference. First operand 5767 states and 19885 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:24,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:24,363 INFO L93 Difference]: Finished difference Result 12984 states and 44180 transitions. [2022-03-15 17:10:24,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-03-15 17:10:24,363 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:24,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:24,389 INFO L225 Difference]: With dead ends: 12984 [2022-03-15 17:10:24,389 INFO L226 Difference]: Without dead ends: 12815 [2022-03-15 17:10:24,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6319 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1152, Invalid=15878, Unknown=0, NotChecked=0, Total=17030 [2022-03-15 17:10:24,391 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 696 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 5527 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 3757 SdHoareTripleChecker+Invalid, 5689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 5527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:24,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 3757 Invalid, 5689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 5527 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 17:10:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12815 states. [2022-03-15 17:10:24,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12815 to 5851. [2022-03-15 17:10:24,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5851 states, 5850 states have (on average 3.4483760683760685) internal successors, (20173), 5850 states have internal predecessors, (20173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:24,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5851 states to 5851 states and 20173 transitions. [2022-03-15 17:10:24,506 INFO L78 Accepts]: Start accepts. Automaton has 5851 states and 20173 transitions. Word has length 39 [2022-03-15 17:10:24,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:24,506 INFO L470 AbstractCegarLoop]: Abstraction has 5851 states and 20173 transitions. [2022-03-15 17:10:24,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5851 states and 20173 transitions. [2022-03-15 17:10:24,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:24,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:24,514 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] [2022-03-15 17:10:24,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-15 17:10:24,514 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:24,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:24,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1823709180, now seen corresponding path program 101 times [2022-03-15 17:10:24,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:24,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287583829] [2022-03-15 17:10:24,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:24,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:24,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:24,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287583829] [2022-03-15 17:10:24,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287583829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:24,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:24,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:10:24,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588377249] [2022-03-15 17:10:24,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:24,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:10:24,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:24,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:10:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:10:24,752 INFO L87 Difference]: Start difference. First operand 5851 states and 20173 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:29,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:29,980 INFO L93 Difference]: Finished difference Result 12513 states and 42749 transitions. [2022-03-15 17:10:29,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-15 17:10:29,981 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:30,005 INFO L225 Difference]: With dead ends: 12513 [2022-03-15 17:10:30,005 INFO L226 Difference]: Without dead ends: 12266 [2022-03-15 17:10:30,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6851 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1151, Invalid=17209, Unknown=0, NotChecked=0, Total=18360 [2022-03-15 17:10:30,007 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 688 mSDsluCounter, 4281 mSDsCounter, 0 mSdLazyCounter, 6379 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 6542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 6379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:30,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 4304 Invalid, 6542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 6379 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-15 17:10:30,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12266 states. [2022-03-15 17:10:30,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12266 to 5419. [2022-03-15 17:10:30,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 3.4562569213732006) internal successors, (18726), 5418 states have internal predecessors, (18726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:30,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 18726 transitions. [2022-03-15 17:10:30,147 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 18726 transitions. Word has length 39 [2022-03-15 17:10:30,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:30,147 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 18726 transitions. [2022-03-15 17:10:30,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 18726 transitions. [2022-03-15 17:10:30,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:30,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:30,155 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] [2022-03-15 17:10:30,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-15 17:10:30,155 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:30,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:30,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1162564890, now seen corresponding path program 102 times [2022-03-15 17:10:30,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:30,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462675319] [2022-03-15 17:10:30,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:30,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:30,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:30,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462675319] [2022-03-15 17:10:30,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462675319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:30,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:30,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:30,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157442741] [2022-03-15 17:10:30,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:30,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:30,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:30,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:30,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:30,388 INFO L87 Difference]: Start difference. First operand 5419 states and 18726 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:34,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:34,159 INFO L93 Difference]: Finished difference Result 10652 states and 36464 transitions. [2022-03-15 17:10:34,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-03-15 17:10:34,159 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:34,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:34,180 INFO L225 Difference]: With dead ends: 10652 [2022-03-15 17:10:34,180 INFO L226 Difference]: Without dead ends: 10585 [2022-03-15 17:10:34,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3583 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=755, Invalid=9957, Unknown=0, NotChecked=0, Total=10712 [2022-03-15 17:10:34,181 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 602 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 5255 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 3932 SdHoareTripleChecker+Invalid, 5349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 5255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:34,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 3932 Invalid, 5349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 5255 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 17:10:34,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10585 states. [2022-03-15 17:10:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10585 to 5437. [2022-03-15 17:10:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5436 states have (on average 3.4536423841059603) internal successors, (18774), 5436 states have internal predecessors, (18774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:34,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18774 transitions. [2022-03-15 17:10:34,278 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18774 transitions. Word has length 39 [2022-03-15 17:10:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:34,278 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18774 transitions. [2022-03-15 17:10:34,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18774 transitions. [2022-03-15 17:10:34,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:34,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:34,286 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] [2022-03-15 17:10:34,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-15 17:10:34,286 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:34,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:34,286 INFO L85 PathProgramCache]: Analyzing trace with hash -557051080, now seen corresponding path program 103 times [2022-03-15 17:10:34,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:34,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248855933] [2022-03-15 17:10:34,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:34,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:34,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:34,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248855933] [2022-03-15 17:10:34,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248855933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:34,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:34,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:34,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67774491] [2022-03-15 17:10:34,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:34,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:34,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:34,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:34,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:34,519 INFO L87 Difference]: Start difference. First operand 5437 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:39,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:39,532 INFO L93 Difference]: Finished difference Result 12169 states and 41355 transitions. [2022-03-15 17:10:39,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-03-15 17:10:39,533 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:39,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:39,557 INFO L225 Difference]: With dead ends: 12169 [2022-03-15 17:10:39,557 INFO L226 Difference]: Without dead ends: 12126 [2022-03-15 17:10:39,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6673 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1175, Invalid=16915, Unknown=0, NotChecked=0, Total=18090 [2022-03-15 17:10:39,559 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 719 mSDsluCounter, 4194 mSDsCounter, 0 mSdLazyCounter, 5835 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 4087 SdHoareTripleChecker+Invalid, 5986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 5835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:39,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 4087 Invalid, 5986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 5835 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 17:10:39,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12126 states. [2022-03-15 17:10:39,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12126 to 5461. [2022-03-15 17:10:39,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5461 states, 5460 states have (on average 3.451831501831502) internal successors, (18847), 5460 states have internal predecessors, (18847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5461 states to 5461 states and 18847 transitions. [2022-03-15 17:10:39,715 INFO L78 Accepts]: Start accepts. Automaton has 5461 states and 18847 transitions. Word has length 39 [2022-03-15 17:10:39,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:39,715 INFO L470 AbstractCegarLoop]: Abstraction has 5461 states and 18847 transitions. [2022-03-15 17:10:39,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:39,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5461 states and 18847 transitions. [2022-03-15 17:10:39,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:39,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:39,722 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] [2022-03-15 17:10:39,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-15 17:10:39,723 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:39,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:39,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1957317914, now seen corresponding path program 104 times [2022-03-15 17:10:39,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:39,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715031479] [2022-03-15 17:10:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:39,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:39,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:39,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715031479] [2022-03-15 17:10:39,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715031479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:39,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:39,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:39,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811168240] [2022-03-15 17:10:39,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:39,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:39,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:39,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:39,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:39,970 INFO L87 Difference]: Start difference. First operand 5461 states and 18847 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:45,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:45,098 INFO L93 Difference]: Finished difference Result 12677 states and 43230 transitions. [2022-03-15 17:10:45,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-03-15 17:10:45,099 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:45,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:45,124 INFO L225 Difference]: With dead ends: 12677 [2022-03-15 17:10:45,124 INFO L226 Difference]: Without dead ends: 12601 [2022-03-15 17:10:45,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6890 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1205, Invalid=17427, Unknown=0, NotChecked=0, Total=18632 [2022-03-15 17:10:45,125 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 719 mSDsluCounter, 4219 mSDsCounter, 0 mSdLazyCounter, 5998 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 6171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 5998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:45,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 4126 Invalid, 6171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 5998 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-15 17:10:45,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12601 states. [2022-03-15 17:10:45,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12601 to 5431. [2022-03-15 17:10:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 3.4556169429097605) internal successors, (18764), 5430 states have internal predecessors, (18764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:45,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 18764 transitions. [2022-03-15 17:10:45,235 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 18764 transitions. Word has length 39 [2022-03-15 17:10:45,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:45,235 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 18764 transitions. [2022-03-15 17:10:45,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:45,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 18764 transitions. [2022-03-15 17:10:45,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:45,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:45,242 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] [2022-03-15 17:10:45,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-15 17:10:45,243 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:45,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:45,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1825858342, now seen corresponding path program 105 times [2022-03-15 17:10:45,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:45,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620842851] [2022-03-15 17:10:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:45,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:45,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:45,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620842851] [2022-03-15 17:10:45,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620842851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:45,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:45,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:45,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358848326] [2022-03-15 17:10:45,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:45,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:45,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:45,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:45,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:45,478 INFO L87 Difference]: Start difference. First operand 5431 states and 18764 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:47,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:47,847 INFO L93 Difference]: Finished difference Result 9270 states and 32084 transitions. [2022-03-15 17:10:47,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 17:10:47,847 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:47,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:47,865 INFO L225 Difference]: With dead ends: 9270 [2022-03-15 17:10:47,866 INFO L226 Difference]: Without dead ends: 9203 [2022-03-15 17:10:47,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1423 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=418, Invalid=4694, Unknown=0, NotChecked=0, Total=5112 [2022-03-15 17:10:47,866 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 474 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 3830 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2692 SdHoareTripleChecker+Invalid, 3905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 3830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:47,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2692 Invalid, 3905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 3830 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:10:47,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9203 states. [2022-03-15 17:10:47,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9203 to 5449. [2022-03-15 17:10:47,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5448 states have (on average 3.4519089574155655) internal successors, (18806), 5448 states have internal predecessors, (18806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 18806 transitions. [2022-03-15 17:10:47,958 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 18806 transitions. Word has length 39 [2022-03-15 17:10:47,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:47,958 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 18806 transitions. [2022-03-15 17:10:47,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 18806 transitions. [2022-03-15 17:10:47,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:47,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:47,965 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] [2022-03-15 17:10:47,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-15 17:10:47,966 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:47,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:47,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1467788134, now seen corresponding path program 106 times [2022-03-15 17:10:47,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:47,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511200883] [2022-03-15 17:10:47,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:47,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:48,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:48,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:48,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511200883] [2022-03-15 17:10:48,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511200883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:48,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:48,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:48,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100247103] [2022-03-15 17:10:48,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:48,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:48,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:48,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:48,208 INFO L87 Difference]: Start difference. First operand 5449 states and 18806 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:50,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:50,343 INFO L93 Difference]: Finished difference Result 8819 states and 30408 transitions. [2022-03-15 17:10:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-15 17:10:50,343 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:50,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:50,360 INFO L225 Difference]: With dead ends: 8819 [2022-03-15 17:10:50,360 INFO L226 Difference]: Without dead ends: 8744 [2022-03-15 17:10:50,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=395, Invalid=4297, Unknown=0, NotChecked=0, Total=4692 [2022-03-15 17:10:50,361 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 451 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 3343 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 3417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:50,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2355 Invalid, 3417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3343 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:10:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8744 states. [2022-03-15 17:10:50,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8744 to 5437. [2022-03-15 17:10:50,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5436 states have (on average 3.4536423841059603) internal successors, (18774), 5436 states have internal predecessors, (18774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18774 transitions. [2022-03-15 17:10:50,447 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18774 transitions. Word has length 39 [2022-03-15 17:10:50,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:50,447 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18774 transitions. [2022-03-15 17:10:50,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:50,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18774 transitions. [2022-03-15 17:10:50,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:50,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:50,455 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] [2022-03-15 17:10:50,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-15 17:10:50,455 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:50,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash 160516920, now seen corresponding path program 107 times [2022-03-15 17:10:50,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:50,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075182744] [2022-03-15 17:10:50,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:50,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:50,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:50,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075182744] [2022-03-15 17:10:50,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075182744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:50,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:50,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:50,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745963531] [2022-03-15 17:10:50,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:50,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:50,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:50,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:50,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:50,686 INFO L87 Difference]: Start difference. First operand 5437 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:53,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:53,789 INFO L93 Difference]: Finished difference Result 9692 states and 33271 transitions. [2022-03-15 17:10:53,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-15 17:10:53,790 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:53,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:53,810 INFO L225 Difference]: With dead ends: 9692 [2022-03-15 17:10:53,810 INFO L226 Difference]: Without dead ends: 9649 [2022-03-15 17:10:53,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=717, Invalid=8789, Unknown=0, NotChecked=0, Total=9506 [2022-03-15 17:10:53,811 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 619 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 3648 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 3648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:53,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [619 Valid, 2478 Invalid, 3786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 3648 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:10:53,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-03-15 17:10:53,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5452. [2022-03-15 17:10:53,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5452 states, 5451 states have (on average 3.4525775087139974) internal successors, (18820), 5451 states have internal predecessors, (18820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:53,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 18820 transitions. [2022-03-15 17:10:53,906 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 18820 transitions. Word has length 39 [2022-03-15 17:10:53,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:53,906 INFO L470 AbstractCegarLoop]: Abstraction has 5452 states and 18820 transitions. [2022-03-15 17:10:53,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:53,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 18820 transitions. [2022-03-15 17:10:53,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:53,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:53,914 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] [2022-03-15 17:10:53,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-15 17:10:53,914 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:53,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1620081382, now seen corresponding path program 108 times [2022-03-15 17:10:53,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:53,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520316764] [2022-03-15 17:10:53,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:53,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:54,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:54,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:54,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520316764] [2022-03-15 17:10:54,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520316764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:54,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:54,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:54,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583230437] [2022-03-15 17:10:54,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:54,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:54,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:54,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:54,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:54,150 INFO L87 Difference]: Start difference. First operand 5452 states and 18820 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:57,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:10:57,628 INFO L93 Difference]: Finished difference Result 10742 states and 36805 transitions. [2022-03-15 17:10:57,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-03-15 17:10:57,628 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:10:57,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:10:57,649 INFO L225 Difference]: With dead ends: 10742 [2022-03-15 17:10:57,649 INFO L226 Difference]: Without dead ends: 10690 [2022-03-15 17:10:57,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3797 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=782, Invalid=10348, Unknown=0, NotChecked=0, Total=11130 [2022-03-15 17:10:57,650 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 660 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 4107 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:10:57,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 2939 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4107 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:10:57,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-03-15 17:10:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 5446. [2022-03-15 17:10:57,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 5445 states have (on average 3.453443526170799) internal successors, (18804), 5445 states have internal predecessors, (18804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:57,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 18804 transitions. [2022-03-15 17:10:57,752 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 18804 transitions. Word has length 39 [2022-03-15 17:10:57,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:10:57,752 INFO L470 AbstractCegarLoop]: Abstraction has 5446 states and 18804 transitions. [2022-03-15 17:10:57,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:10:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 18804 transitions. [2022-03-15 17:10:57,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:10:57,759 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:10:57,759 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] [2022-03-15 17:10:57,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-15 17:10:57,759 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:10:57,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:10:57,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1376902310, now seen corresponding path program 109 times [2022-03-15 17:10:57,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:10:57,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774882331] [2022-03-15 17:10:57,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:10:57,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:10:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:10:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:10:57,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:10:57,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774882331] [2022-03-15 17:10:57,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774882331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:10:57,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:10:57,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:10:57,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081668841] [2022-03-15 17:10:57,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:10:57,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:10:57,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:10:57,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:10:57,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:10:57,999 INFO L87 Difference]: Start difference. First operand 5446 states and 18804 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:00,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:00,204 INFO L93 Difference]: Finished difference Result 8972 states and 30755 transitions. [2022-03-15 17:11:00,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-15 17:11:00,205 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:00,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:00,222 INFO L225 Difference]: With dead ends: 8972 [2022-03-15 17:11:00,222 INFO L226 Difference]: Without dead ends: 8909 [2022-03-15 17:11:00,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=422, Invalid=4690, Unknown=0, NotChecked=0, Total=5112 [2022-03-15 17:11:00,223 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 475 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 3386 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 3465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:00,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 2361 Invalid, 3465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3386 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:11:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8909 states. [2022-03-15 17:11:00,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8909 to 5449. [2022-03-15 17:11:00,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5448 states have (on average 3.452459618208517) internal successors, (18809), 5448 states have internal predecessors, (18809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 18809 transitions. [2022-03-15 17:11:00,311 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 18809 transitions. Word has length 39 [2022-03-15 17:11:00,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:00,311 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 18809 transitions. [2022-03-15 17:11:00,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 18809 transitions. [2022-03-15 17:11:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:00,318 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:00,318 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] [2022-03-15 17:11:00,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-15 17:11:00,318 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:00,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:00,319 INFO L85 PathProgramCache]: Analyzing trace with hash 990423228, now seen corresponding path program 110 times [2022-03-15 17:11:00,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:00,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448159296] [2022-03-15 17:11:00,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:00,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:00,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:00,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:00,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448159296] [2022-03-15 17:11:00,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448159296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:00,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:00,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:00,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237699081] [2022-03-15 17:11:00,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:00,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:00,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:00,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:00,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:00,567 INFO L87 Difference]: Start difference. First operand 5449 states and 18809 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:03,250 INFO L93 Difference]: Finished difference Result 10049 states and 34391 transitions. [2022-03-15 17:11:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-15 17:11:03,251 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:03,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:03,269 INFO L225 Difference]: With dead ends: 10049 [2022-03-15 17:11:03,269 INFO L226 Difference]: Without dead ends: 9898 [2022-03-15 17:11:03,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1938 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=495, Invalid=5985, Unknown=0, NotChecked=0, Total=6480 [2022-03-15 17:11:03,270 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 504 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 4050 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 4139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:03,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 2953 Invalid, 4139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4050 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:11:03,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9898 states. [2022-03-15 17:11:03,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9898 to 5438. [2022-03-15 17:11:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 3.454662497700938) internal successors, (18783), 5437 states have internal predecessors, (18783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 18783 transitions. [2022-03-15 17:11:03,364 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 18783 transitions. Word has length 39 [2022-03-15 17:11:03,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:03,364 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 18783 transitions. [2022-03-15 17:11:03,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 18783 transitions. [2022-03-15 17:11:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:03,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:03,371 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] [2022-03-15 17:11:03,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-15 17:11:03,371 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:03,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:03,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1408668860, now seen corresponding path program 111 times [2022-03-15 17:11:03,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:03,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381871115] [2022-03-15 17:11:03,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:03,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:03,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:03,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:03,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381871115] [2022-03-15 17:11:03,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381871115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:03,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:03,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:03,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144857865] [2022-03-15 17:11:03,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:03,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:03,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:03,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:03,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:03,620 INFO L87 Difference]: Start difference. First operand 5438 states and 18783 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:09,269 INFO L93 Difference]: Finished difference Result 12395 states and 42218 transitions. [2022-03-15 17:11:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-03-15 17:11:09,270 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:09,294 INFO L225 Difference]: With dead ends: 12395 [2022-03-15 17:11:09,294 INFO L226 Difference]: Without dead ends: 12258 [2022-03-15 17:11:09,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7572 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1206, Invalid=19100, Unknown=0, NotChecked=0, Total=20306 [2022-03-15 17:11:09,296 INFO L933 BasicCegarLoop]: 480 mSDtfsCounter, 748 mSDsluCounter, 4890 mSDsCounter, 0 mSdLazyCounter, 7017 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 4828 SdHoareTripleChecker+Invalid, 7193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 7017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:09,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [748 Valid, 4828 Invalid, 7193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 7017 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-15 17:11:09,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12258 states. [2022-03-15 17:11:09,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12258 to 5444. [2022-03-15 17:11:09,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 3.4537938636781185) internal successors, (18799), 5443 states have internal predecessors, (18799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 18799 transitions. [2022-03-15 17:11:09,436 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 18799 transitions. Word has length 39 [2022-03-15 17:11:09,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:09,437 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 18799 transitions. [2022-03-15 17:11:09,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 18799 transitions. [2022-03-15 17:11:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:09,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:09,444 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] [2022-03-15 17:11:09,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-15 17:11:09,444 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:09,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash 667716762, now seen corresponding path program 112 times [2022-03-15 17:11:09,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:09,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779844430] [2022-03-15 17:11:09,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:09,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:09,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:09,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779844430] [2022-03-15 17:11:09,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779844430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:09,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:09,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:09,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684783370] [2022-03-15 17:11:09,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:09,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:09,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:09,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:09,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:09,681 INFO L87 Difference]: Start difference. First operand 5444 states and 18799 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:12,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:12,688 INFO L93 Difference]: Finished difference Result 9713 states and 33303 transitions. [2022-03-15 17:11:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-15 17:11:12,691 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:12,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:12,710 INFO L225 Difference]: With dead ends: 9713 [2022-03-15 17:11:12,710 INFO L226 Difference]: Without dead ends: 9649 [2022-03-15 17:11:12,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2910 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=677, Invalid=8253, Unknown=0, NotChecked=0, Total=8930 [2022-03-15 17:11:12,711 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 616 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 3607 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 3743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 3607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:12,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 2482 Invalid, 3743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 3607 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:11:12,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-03-15 17:11:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5450. [2022-03-15 17:11:12,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 3.4529271425949717) internal successors, (18815), 5449 states have internal predecessors, (18815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:12,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 18815 transitions. [2022-03-15 17:11:12,799 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 18815 transitions. Word has length 39 [2022-03-15 17:11:12,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:12,799 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 18815 transitions. [2022-03-15 17:11:12,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:12,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 18815 transitions. [2022-03-15 17:11:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:12,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:12,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:11:12,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-15 17:11:12,807 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:12,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:12,807 INFO L85 PathProgramCache]: Analyzing trace with hash -869702468, now seen corresponding path program 113 times [2022-03-15 17:11:12,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:12,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140697037] [2022-03-15 17:11:12,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:12,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:13,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:13,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:13,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140697037] [2022-03-15 17:11:13,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140697037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:13,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:13,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:13,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297781063] [2022-03-15 17:11:13,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:13,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:13,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:13,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:13,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:13,036 INFO L87 Difference]: Start difference. First operand 5450 states and 18815 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:15,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:15,138 INFO L93 Difference]: Finished difference Result 9005 states and 30847 transitions. [2022-03-15 17:11:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-15 17:11:15,138 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:15,156 INFO L225 Difference]: With dead ends: 9005 [2022-03-15 17:11:15,156 INFO L226 Difference]: Without dead ends: 8942 [2022-03-15 17:11:15,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=387, Invalid=4305, Unknown=0, NotChecked=0, Total=4692 [2022-03-15 17:11:15,157 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 471 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 3484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:15,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 2424 Invalid, 3484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:11:15,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8942 states. [2022-03-15 17:11:15,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8942 to 5459. [2022-03-15 17:11:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 3.451080982044705) internal successors, (18836), 5458 states have internal predecessors, (18836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:15,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 18836 transitions. [2022-03-15 17:11:15,275 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 18836 transitions. Word has length 39 [2022-03-15 17:11:15,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:15,275 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 18836 transitions. [2022-03-15 17:11:15,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 18836 transitions. [2022-03-15 17:11:15,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:15,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:15,282 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] [2022-03-15 17:11:15,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-15 17:11:15,282 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:15,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:15,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1497623070, now seen corresponding path program 114 times [2022-03-15 17:11:15,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:15,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136425648] [2022-03-15 17:11:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:15,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:15,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:15,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:15,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136425648] [2022-03-15 17:11:15,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136425648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:15,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:15,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:15,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781258473] [2022-03-15 17:11:15,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:15,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:15,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:15,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:15,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:15,518 INFO L87 Difference]: Start difference. First operand 5459 states and 18836 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:18,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:18,185 INFO L93 Difference]: Finished difference Result 10156 states and 34664 transitions. [2022-03-15 17:11:18,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-15 17:11:18,186 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:18,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:18,205 INFO L225 Difference]: With dead ends: 10156 [2022-03-15 17:11:18,205 INFO L226 Difference]: Without dead ends: 10086 [2022-03-15 17:11:18,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2063 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=515, Invalid=6291, Unknown=0, NotChecked=0, Total=6806 [2022-03-15 17:11:18,206 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 539 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 4037 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 4131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 4037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:18,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2971 Invalid, 4131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 4037 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:11:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10086 states. [2022-03-15 17:11:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10086 to 5456. [2022-03-15 17:11:18,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 5455 states have (on average 3.451512373968836) internal successors, (18828), 5455 states have internal predecessors, (18828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 18828 transitions. [2022-03-15 17:11:18,335 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 18828 transitions. Word has length 39 [2022-03-15 17:11:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:18,335 INFO L470 AbstractCegarLoop]: Abstraction has 5456 states and 18828 transitions. [2022-03-15 17:11:18,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:18,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 18828 transitions. [2022-03-15 17:11:18,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:18,342 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:18,343 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] [2022-03-15 17:11:18,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-15 17:11:18,343 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:18,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:18,343 INFO L85 PathProgramCache]: Analyzing trace with hash -518061130, now seen corresponding path program 115 times [2022-03-15 17:11:18,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:18,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032936526] [2022-03-15 17:11:18,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:18,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:18,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:18,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032936526] [2022-03-15 17:11:18,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032936526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:18,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:18,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:11:18,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151543078] [2022-03-15 17:11:18,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:18,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:11:18,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:18,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:11:18,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:11:18,555 INFO L87 Difference]: Start difference. First operand 5456 states and 18828 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:20,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:20,874 INFO L93 Difference]: Finished difference Result 9853 states and 33899 transitions. [2022-03-15 17:11:20,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-03-15 17:11:20,875 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:20,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:20,894 INFO L225 Difference]: With dead ends: 9853 [2022-03-15 17:11:20,894 INFO L226 Difference]: Without dead ends: 9777 [2022-03-15 17:11:20,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1588 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=438, Invalid=4964, Unknown=0, NotChecked=0, Total=5402 [2022-03-15 17:11:20,895 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 469 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 3498 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2608 SdHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:20,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 2608 Invalid, 3579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3498 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:11:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9777 states. [2022-03-15 17:11:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 5470. [2022-03-15 17:11:21,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 3.4481623697202415) internal successors, (18858), 5469 states have internal predecessors, (18858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 18858 transitions. [2022-03-15 17:11:21,025 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 18858 transitions. Word has length 39 [2022-03-15 17:11:21,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:21,026 INFO L470 AbstractCegarLoop]: Abstraction has 5470 states and 18858 transitions. [2022-03-15 17:11:21,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:21,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 18858 transitions. [2022-03-15 17:11:21,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:21,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:21,033 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] [2022-03-15 17:11:21,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-15 17:11:21,034 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:21,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:21,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2065983464, now seen corresponding path program 116 times [2022-03-15 17:11:21,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:21,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729448810] [2022-03-15 17:11:21,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:21,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:21,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:21,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:21,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729448810] [2022-03-15 17:11:21,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729448810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:21,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:21,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:21,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138699979] [2022-03-15 17:11:21,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:21,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:21,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:21,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:21,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:21,264 INFO L87 Difference]: Start difference. First operand 5470 states and 18858 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:23,880 INFO L93 Difference]: Finished difference Result 10000 states and 34295 transitions. [2022-03-15 17:11:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-03-15 17:11:23,880 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:23,901 INFO L225 Difference]: With dead ends: 10000 [2022-03-15 17:11:23,901 INFO L226 Difference]: Without dead ends: 9889 [2022-03-15 17:11:23,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1935 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=504, Invalid=5976, Unknown=0, NotChecked=0, Total=6480 [2022-03-15 17:11:23,902 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 509 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 3962 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 4054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 3962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:23,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 2918 Invalid, 4054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 3962 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:11:23,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2022-03-15 17:11:24,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 5438. [2022-03-15 17:11:24,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 3.455030347618172) internal successors, (18785), 5437 states have internal predecessors, (18785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 18785 transitions. [2022-03-15 17:11:24,033 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 18785 transitions. Word has length 39 [2022-03-15 17:11:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:24,033 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 18785 transitions. [2022-03-15 17:11:24,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 18785 transitions. [2022-03-15 17:11:24,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:24,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:24,044 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] [2022-03-15 17:11:24,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-15 17:11:24,044 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:24,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:24,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1992006216, now seen corresponding path program 117 times [2022-03-15 17:11:24,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:24,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561115761] [2022-03-15 17:11:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:24,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:24,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:24,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561115761] [2022-03-15 17:11:24,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561115761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:24,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:24,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:24,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096662030] [2022-03-15 17:11:24,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:24,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:24,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:24,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:24,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:24,283 INFO L87 Difference]: Start difference. First operand 5438 states and 18785 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:27,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:27,533 INFO L93 Difference]: Finished difference Result 10965 states and 37273 transitions. [2022-03-15 17:11:27,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 17:11:27,533 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:27,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:27,556 INFO L225 Difference]: With dead ends: 10965 [2022-03-15 17:11:27,557 INFO L226 Difference]: Without dead ends: 10835 [2022-03-15 17:11:27,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2585 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=647, Invalid=7543, Unknown=0, NotChecked=0, Total=8190 [2022-03-15 17:11:27,557 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 539 mSDsluCounter, 3739 mSDsCounter, 0 mSdLazyCounter, 4709 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 4805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:27,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 3484 Invalid, 4805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 4709 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 17:11:27,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2022-03-15 17:11:27,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5645. [2022-03-15 17:11:27,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5644 states have (on average 3.4466690290574062) internal successors, (19453), 5644 states have internal predecessors, (19453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:27,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 19453 transitions. [2022-03-15 17:11:27,660 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 19453 transitions. Word has length 39 [2022-03-15 17:11:27,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:27,660 INFO L470 AbstractCegarLoop]: Abstraction has 5645 states and 19453 transitions. [2022-03-15 17:11:27,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:27,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 19453 transitions. [2022-03-15 17:11:27,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:27,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:27,668 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] [2022-03-15 17:11:27,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-15 17:11:27,668 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1861411368, now seen corresponding path program 118 times [2022-03-15 17:11:27,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:27,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843945123] [2022-03-15 17:11:27,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:27,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:27,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843945123] [2022-03-15 17:11:27,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843945123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:27,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:27,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:27,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917827203] [2022-03-15 17:11:27,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:27,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:27,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:27,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:27,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:27,897 INFO L87 Difference]: Start difference. First operand 5645 states and 19453 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:30,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:30,436 INFO L93 Difference]: Finished difference Result 9638 states and 32961 transitions. [2022-03-15 17:11:30,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-03-15 17:11:30,437 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:30,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:30,454 INFO L225 Difference]: With dead ends: 9638 [2022-03-15 17:11:30,454 INFO L226 Difference]: Without dead ends: 9575 [2022-03-15 17:11:30,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1931 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=559, Invalid=5921, Unknown=0, NotChecked=0, Total=6480 [2022-03-15 17:11:30,455 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 468 mSDsluCounter, 2908 mSDsCounter, 0 mSdLazyCounter, 3594 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2614 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:30,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 2614 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3594 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:11:30,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9575 states. [2022-03-15 17:11:30,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9575 to 5645. [2022-03-15 17:11:30,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5644 states have (on average 3.4459603118355777) internal successors, (19449), 5644 states have internal predecessors, (19449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:30,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 19449 transitions. [2022-03-15 17:11:30,547 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 19449 transitions. Word has length 39 [2022-03-15 17:11:30,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:30,547 INFO L470 AbstractCegarLoop]: Abstraction has 5645 states and 19449 transitions. [2022-03-15 17:11:30,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:30,547 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 19449 transitions. [2022-03-15 17:11:30,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:30,555 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:30,555 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] [2022-03-15 17:11:30,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-15 17:11:30,555 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:30,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:30,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1725732776, now seen corresponding path program 119 times [2022-03-15 17:11:30,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:30,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462445061] [2022-03-15 17:11:30,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:30,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:30,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:30,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462445061] [2022-03-15 17:11:30,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462445061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:30,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:30,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:30,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013872094] [2022-03-15 17:11:30,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:30,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:30,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:30,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:30,782 INFO L87 Difference]: Start difference. First operand 5645 states and 19449 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:35,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:35,159 INFO L93 Difference]: Finished difference Result 12438 states and 41785 transitions. [2022-03-15 17:11:35,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-03-15 17:11:35,159 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:35,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:35,183 INFO L225 Difference]: With dead ends: 12438 [2022-03-15 17:11:35,183 INFO L226 Difference]: Without dead ends: 12242 [2022-03-15 17:11:35,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6246 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1157, Invalid=15873, Unknown=0, NotChecked=0, Total=17030 [2022-03-15 17:11:35,185 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 674 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 4933 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 5104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 4933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:35,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [674 Valid, 3542 Invalid, 5104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 4933 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:11:35,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12242 states. [2022-03-15 17:11:35,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12242 to 5991. [2022-03-15 17:11:35,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5991 states, 5990 states have (on average 3.46661101836394) internal successors, (20765), 5990 states have internal predecessors, (20765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:35,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5991 states to 5991 states and 20765 transitions. [2022-03-15 17:11:35,322 INFO L78 Accepts]: Start accepts. Automaton has 5991 states and 20765 transitions. Word has length 39 [2022-03-15 17:11:35,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:35,322 INFO L470 AbstractCegarLoop]: Abstraction has 5991 states and 20765 transitions. [2022-03-15 17:11:35,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:35,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5991 states and 20765 transitions. [2022-03-15 17:11:35,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:35,331 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:35,331 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] [2022-03-15 17:11:35,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-15 17:11:35,331 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:35,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:35,331 INFO L85 PathProgramCache]: Analyzing trace with hash -54865526, now seen corresponding path program 120 times [2022-03-15 17:11:35,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:35,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499671235] [2022-03-15 17:11:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:35,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:35,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:35,581 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:35,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499671235] [2022-03-15 17:11:35,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499671235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:35,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:35,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:35,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253612445] [2022-03-15 17:11:35,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:35,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:35,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:35,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:35,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:35,582 INFO L87 Difference]: Start difference. First operand 5991 states and 20765 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:40,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:40,296 INFO L93 Difference]: Finished difference Result 13160 states and 44326 transitions. [2022-03-15 17:11:40,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-03-15 17:11:40,296 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:40,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:40,323 INFO L225 Difference]: With dead ends: 13160 [2022-03-15 17:11:40,323 INFO L226 Difference]: Without dead ends: 12985 [2022-03-15 17:11:40,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6915 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1227, Invalid=17405, Unknown=0, NotChecked=0, Total=18632 [2022-03-15 17:11:40,324 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 687 mSDsluCounter, 4055 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 5439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:40,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 3795 Invalid, 5439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 5257 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 17:11:40,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12985 states. [2022-03-15 17:11:40,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12985 to 6003. [2022-03-15 17:11:40,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6002 states have (on average 3.4680106631122958) internal successors, (20815), 6002 states have internal predecessors, (20815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:40,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 20815 transitions. [2022-03-15 17:11:40,443 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 20815 transitions. Word has length 39 [2022-03-15 17:11:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:40,443 INFO L470 AbstractCegarLoop]: Abstraction has 6003 states and 20815 transitions. [2022-03-15 17:11:40,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:40,443 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 20815 transitions. [2022-03-15 17:11:40,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:40,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:40,451 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] [2022-03-15 17:11:40,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-15 17:11:40,451 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:40,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:40,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1650750950, now seen corresponding path program 121 times [2022-03-15 17:11:40,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:40,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230651174] [2022-03-15 17:11:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:40,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:40,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:40,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230651174] [2022-03-15 17:11:40,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230651174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:40,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:40,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:40,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419722855] [2022-03-15 17:11:40,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:40,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:40,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:40,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:40,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:40,704 INFO L87 Difference]: Start difference. First operand 6003 states and 20815 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:43,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:43,327 INFO L93 Difference]: Finished difference Result 10096 states and 34556 transitions. [2022-03-15 17:11:43,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-15 17:11:43,328 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:43,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:43,347 INFO L225 Difference]: With dead ends: 10096 [2022-03-15 17:11:43,347 INFO L226 Difference]: Without dead ends: 10041 [2022-03-15 17:11:43,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2122 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=595, Invalid=6377, Unknown=0, NotChecked=0, Total=6972 [2022-03-15 17:11:43,348 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 484 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 3738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:43,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2633 Invalid, 3738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:11:43,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2022-03-15 17:11:43,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 6005. [2022-03-15 17:11:43,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6005 states, 6004 states have (on average 3.4673550966022653) internal successors, (20818), 6004 states have internal predecessors, (20818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:43,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6005 states to 6005 states and 20818 transitions. [2022-03-15 17:11:43,448 INFO L78 Accepts]: Start accepts. Automaton has 6005 states and 20818 transitions. Word has length 39 [2022-03-15 17:11:43,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:43,449 INFO L470 AbstractCegarLoop]: Abstraction has 6005 states and 20818 transitions. [2022-03-15 17:11:43,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6005 states and 20818 transitions. [2022-03-15 17:11:43,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:43,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:43,457 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] [2022-03-15 17:11:43,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-15 17:11:43,458 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:43,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:43,458 INFO L85 PathProgramCache]: Analyzing trace with hash -478098728, now seen corresponding path program 122 times [2022-03-15 17:11:43,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:43,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429943921] [2022-03-15 17:11:43,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:43,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:43,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:43,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429943921] [2022-03-15 17:11:43,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429943921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:43,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:43,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:43,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626319722] [2022-03-15 17:11:43,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:43,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:43,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:43,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:43,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:43,688 INFO L87 Difference]: Start difference. First operand 6005 states and 20818 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:46,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:46,692 INFO L93 Difference]: Finished difference Result 11129 states and 38066 transitions. [2022-03-15 17:11:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 17:11:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:46,714 INFO L225 Difference]: With dead ends: 11129 [2022-03-15 17:11:46,714 INFO L226 Difference]: Without dead ends: 11083 [2022-03-15 17:11:46,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2669 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=654, Invalid=7718, Unknown=0, NotChecked=0, Total=8372 [2022-03-15 17:11:46,715 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 523 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 4207 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 4307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 4207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:46,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 3190 Invalid, 4307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 4207 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:11:46,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11083 states. [2022-03-15 17:11:46,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11083 to 6009. [2022-03-15 17:11:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6009 states, 6008 states have (on average 3.4663781624500665) internal successors, (20826), 6008 states have internal predecessors, (20826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:46,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6009 states to 6009 states and 20826 transitions. [2022-03-15 17:11:46,824 INFO L78 Accepts]: Start accepts. Automaton has 6009 states and 20826 transitions. Word has length 39 [2022-03-15 17:11:46,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:46,825 INFO L470 AbstractCegarLoop]: Abstraction has 6009 states and 20826 transitions. [2022-03-15 17:11:46,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:46,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6009 states and 20826 transitions. [2022-03-15 17:11:46,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:46,833 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:46,833 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] [2022-03-15 17:11:46,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-15 17:11:46,833 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:46,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:46,833 INFO L85 PathProgramCache]: Analyzing trace with hash -725564890, now seen corresponding path program 123 times [2022-03-15 17:11:46,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:46,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013117361] [2022-03-15 17:11:46,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:46,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:47,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:47,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:47,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013117361] [2022-03-15 17:11:47,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013117361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:47,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:47,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:47,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914441515] [2022-03-15 17:11:47,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:47,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:47,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:47,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:47,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:47,065 INFO L87 Difference]: Start difference. First operand 6009 states and 20826 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:49,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:49,695 INFO L93 Difference]: Finished difference Result 9952 states and 34247 transitions. [2022-03-15 17:11:49,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-15 17:11:49,695 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:49,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:49,715 INFO L225 Difference]: With dead ends: 9952 [2022-03-15 17:11:49,715 INFO L226 Difference]: Without dead ends: 9899 [2022-03-15 17:11:49,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2120 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=602, Invalid=6370, Unknown=0, NotChecked=0, Total=6972 [2022-03-15 17:11:49,716 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 505 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 3546 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 3639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:49,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 2649 Invalid, 3639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3546 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:11:49,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9899 states. [2022-03-15 17:11:49,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9899 to 5999. [2022-03-15 17:11:49,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 5998 states have (on average 3.4689896632210737) internal successors, (20807), 5998 states have internal predecessors, (20807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:49,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 20807 transitions. [2022-03-15 17:11:49,817 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 20807 transitions. Word has length 39 [2022-03-15 17:11:49,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:49,818 INFO L470 AbstractCegarLoop]: Abstraction has 5999 states and 20807 transitions. [2022-03-15 17:11:49,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:49,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 20807 transitions. [2022-03-15 17:11:49,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:49,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:49,826 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] [2022-03-15 17:11:49,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-15 17:11:49,826 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:49,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:49,826 INFO L85 PathProgramCache]: Analyzing trace with hash 732974406, now seen corresponding path program 124 times [2022-03-15 17:11:49,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:49,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21057358] [2022-03-15 17:11:49,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:49,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:50,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:50,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:50,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21057358] [2022-03-15 17:11:50,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21057358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:50,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:50,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:50,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132480266] [2022-03-15 17:11:50,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:50,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:50,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:50,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:50,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:50,064 INFO L87 Difference]: Start difference. First operand 5999 states and 20807 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:53,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:53,232 INFO L93 Difference]: Finished difference Result 11369 states and 38815 transitions. [2022-03-15 17:11:53,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 17:11:53,232 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:53,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:53,255 INFO L225 Difference]: With dead ends: 11369 [2022-03-15 17:11:53,255 INFO L226 Difference]: Without dead ends: 11302 [2022-03-15 17:11:53,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2586 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=634, Invalid=7556, Unknown=0, NotChecked=0, Total=8190 [2022-03-15 17:11:53,256 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 534 mSDsluCounter, 3798 mSDsCounter, 0 mSdLazyCounter, 4837 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 3523 SdHoareTripleChecker+Invalid, 4928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:53,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 3523 Invalid, 4928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 4837 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:11:53,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-03-15 17:11:53,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 6017. [2022-03-15 17:11:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6017 states, 6016 states have (on average 3.465591755319149) internal successors, (20849), 6016 states have internal predecessors, (20849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:53,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 20849 transitions. [2022-03-15 17:11:53,377 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 20849 transitions. Word has length 39 [2022-03-15 17:11:53,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:53,378 INFO L470 AbstractCegarLoop]: Abstraction has 6017 states and 20849 transitions. [2022-03-15 17:11:53,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:53,378 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 20849 transitions. [2022-03-15 17:11:53,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:53,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:53,386 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] [2022-03-15 17:11:53,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-15 17:11:53,386 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:53,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:53,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1091044614, now seen corresponding path program 125 times [2022-03-15 17:11:53,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:53,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712211802] [2022-03-15 17:11:53,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:53,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:53,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:53,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712211802] [2022-03-15 17:11:53,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712211802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:53,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:53,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:53,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824110078] [2022-03-15 17:11:53,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:53,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:53,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:53,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:53,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:53,617 INFO L87 Difference]: Start difference. First operand 6017 states and 20849 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:56,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:11:56,184 INFO L93 Difference]: Finished difference Result 10113 states and 34632 transitions. [2022-03-15 17:11:56,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-03-15 17:11:56,184 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:11:56,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:11:56,221 INFO L225 Difference]: With dead ends: 10113 [2022-03-15 17:11:56,221 INFO L226 Difference]: Without dead ends: 10038 [2022-03-15 17:11:56,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1931 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=546, Invalid=5934, Unknown=0, NotChecked=0, Total=6480 [2022-03-15 17:11:56,222 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 477 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 3765 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 3843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:11:56,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 2676 Invalid, 3843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3765 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:11:56,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10038 states. [2022-03-15 17:11:56,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10038 to 6017. [2022-03-15 17:11:56,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6017 states, 6016 states have (on average 3.464594414893617) internal successors, (20843), 6016 states have internal predecessors, (20843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:56,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 20843 transitions. [2022-03-15 17:11:56,393 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 20843 transitions. Word has length 39 [2022-03-15 17:11:56,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:11:56,393 INFO L470 AbstractCegarLoop]: Abstraction has 6017 states and 20843 transitions. [2022-03-15 17:11:56,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:11:56,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 20843 transitions. [2022-03-15 17:11:56,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:11:56,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:11:56,405 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] [2022-03-15 17:11:56,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-15 17:11:56,406 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:11:56,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:11:56,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1575617628, now seen corresponding path program 126 times [2022-03-15 17:11:56,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:11:56,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054352502] [2022-03-15 17:11:56,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:11:56,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:11:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:11:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:11:56,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:11:56,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054352502] [2022-03-15 17:11:56,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054352502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:11:56,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:11:56,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:11:56,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511811814] [2022-03-15 17:11:56,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:11:56,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:11:56,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:11:56,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:11:56,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:11:56,661 INFO L87 Difference]: Start difference. First operand 6017 states and 20843 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:01,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:01,118 INFO L93 Difference]: Finished difference Result 12421 states and 41792 transitions. [2022-03-15 17:12:01,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-03-15 17:12:01,118 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:01,158 INFO L225 Difference]: With dead ends: 12421 [2022-03-15 17:12:01,158 INFO L226 Difference]: Without dead ends: 12254 [2022-03-15 17:12:01,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6236 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1144, Invalid=15886, Unknown=0, NotChecked=0, Total=17030 [2022-03-15 17:12:01,161 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 670 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 5026 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 5191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 5026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:01,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 3557 Invalid, 5191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 5026 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 17:12:01,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12254 states. [2022-03-15 17:12:01,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12254 to 6026. [2022-03-15 17:12:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6025 states have (on average 3.4635684647302907) internal successors, (20868), 6025 states have internal predecessors, (20868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 20868 transitions. [2022-03-15 17:12:01,377 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 20868 transitions. Word has length 39 [2022-03-15 17:12:01,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:01,377 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 20868 transitions. [2022-03-15 17:12:01,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:01,377 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 20868 transitions. [2022-03-15 17:12:01,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:01,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:01,388 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] [2022-03-15 17:12:01,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-15 17:12:01,388 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash 938751366, now seen corresponding path program 127 times [2022-03-15 17:12:01,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:01,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014184] [2022-03-15 17:12:01,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:01,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:01,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:01,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:01,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014184] [2022-03-15 17:12:01,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:01,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:01,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:01,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066890970] [2022-03-15 17:12:01,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:01,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:01,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:01,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:01,624 INFO L87 Difference]: Start difference. First operand 6026 states and 20868 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:06,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:06,329 INFO L93 Difference]: Finished difference Result 12965 states and 43816 transitions. [2022-03-15 17:12:06,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-15 17:12:06,329 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:06,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:06,365 INFO L225 Difference]: With dead ends: 12965 [2022-03-15 17:12:06,365 INFO L226 Difference]: Without dead ends: 12831 [2022-03-15 17:12:06,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7028 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1224, Invalid=17682, Unknown=0, NotChecked=0, Total=18906 [2022-03-15 17:12:06,367 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 684 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 5351 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 5529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 5351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:06,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 3806 Invalid, 5529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 5351 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 17:12:06,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12831 states. [2022-03-15 17:12:06,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12831 to 5962. [2022-03-15 17:12:06,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5961 states have (on average 3.462170776715316) internal successors, (20638), 5961 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 20638 transitions. [2022-03-15 17:12:06,540 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 20638 transitions. Word has length 39 [2022-03-15 17:12:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:06,540 INFO L470 AbstractCegarLoop]: Abstraction has 5962 states and 20638 transitions. [2022-03-15 17:12:06,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 20638 transitions. [2022-03-15 17:12:06,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:06,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:06,551 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] [2022-03-15 17:12:06,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-15 17:12:06,554 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:06,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:06,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1181930438, now seen corresponding path program 128 times [2022-03-15 17:12:06,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:06,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584260450] [2022-03-15 17:12:06,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:06,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:06,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:06,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584260450] [2022-03-15 17:12:06,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584260450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:06,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:06,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:06,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166870103] [2022-03-15 17:12:06,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:06,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:06,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:06,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:06,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:06,812 INFO L87 Difference]: Start difference. First operand 5962 states and 20638 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:09,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:09,445 INFO L93 Difference]: Finished difference Result 10072 states and 34346 transitions. [2022-03-15 17:12:09,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-15 17:12:09,445 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:09,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:09,470 INFO L225 Difference]: With dead ends: 10072 [2022-03-15 17:12:09,470 INFO L226 Difference]: Without dead ends: 10009 [2022-03-15 17:12:09,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2123 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=574, Invalid=6398, Unknown=0, NotChecked=0, Total=6972 [2022-03-15 17:12:09,471 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 492 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 3800 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:09,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 2680 Invalid, 3883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3800 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:12:09,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10009 states. [2022-03-15 17:12:09,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10009 to 5965. [2022-03-15 17:12:09,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5965 states, 5964 states have (on average 3.461267605633803) internal successors, (20643), 5964 states have internal predecessors, (20643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:09,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 20643 transitions. [2022-03-15 17:12:09,610 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 20643 transitions. Word has length 39 [2022-03-15 17:12:09,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:09,610 INFO L470 AbstractCegarLoop]: Abstraction has 5965 states and 20643 transitions. [2022-03-15 17:12:09,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:09,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 20643 transitions. [2022-03-15 17:12:09,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:09,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:09,619 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] [2022-03-15 17:12:09,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-15 17:12:09,620 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:09,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:09,620 INFO L85 PathProgramCache]: Analyzing trace with hash -745711320, now seen corresponding path program 129 times [2022-03-15 17:12:09,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:09,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809363775] [2022-03-15 17:12:09,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:09,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:09,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:09,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:09,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809363775] [2022-03-15 17:12:09,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809363775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:09,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:09,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:09,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821230933] [2022-03-15 17:12:09,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:09,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:09,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:09,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:09,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:09,850 INFO L87 Difference]: Start difference. First operand 5965 states and 20643 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:12,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:12,859 INFO L93 Difference]: Finished difference Result 11071 states and 37791 transitions. [2022-03-15 17:12:12,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-15 17:12:12,859 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:12,881 INFO L225 Difference]: With dead ends: 11071 [2022-03-15 17:12:12,881 INFO L226 Difference]: Without dead ends: 11025 [2022-03-15 17:12:12,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2671 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=629, Invalid=7743, Unknown=0, NotChecked=0, Total=8372 [2022-03-15 17:12:12,882 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 520 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 4368 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 4461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 4368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:12,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 3191 Invalid, 4461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 4368 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:12:12,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11025 states. [2022-03-15 17:12:12,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11025 to 5972. [2022-03-15 17:12:12,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5972 states, 5971 states have (on average 3.4597219896164795) internal successors, (20658), 5971 states have internal predecessors, (20658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5972 states to 5972 states and 20658 transitions. [2022-03-15 17:12:12,993 INFO L78 Accepts]: Start accepts. Automaton has 5972 states and 20658 transitions. Word has length 39 [2022-03-15 17:12:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:12,994 INFO L470 AbstractCegarLoop]: Abstraction has 5972 states and 20658 transitions. [2022-03-15 17:12:12,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:12,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5972 states and 20658 transitions. [2022-03-15 17:12:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:13,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:13,002 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] [2022-03-15 17:12:13,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-15 17:12:13,002 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:13,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:13,003 INFO L85 PathProgramCache]: Analyzing trace with hash 2114188486, now seen corresponding path program 130 times [2022-03-15 17:12:13,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:13,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514458801] [2022-03-15 17:12:13,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:13,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:13,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:13,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:13,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514458801] [2022-03-15 17:12:13,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514458801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:13,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:13,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:13,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918624323] [2022-03-15 17:12:13,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:13,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:13,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:13,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:13,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:13,234 INFO L87 Difference]: Start difference. First operand 5972 states and 20658 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:15,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:15,884 INFO L93 Difference]: Finished difference Result 9716 states and 33428 transitions. [2022-03-15 17:12:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-15 17:12:15,885 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:15,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:15,904 INFO L225 Difference]: With dead ends: 9716 [2022-03-15 17:12:15,905 INFO L226 Difference]: Without dead ends: 9649 [2022-03-15 17:12:15,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1989 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=553, Invalid=6089, Unknown=0, NotChecked=0, Total=6642 [2022-03-15 17:12:15,906 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 481 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 3797 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:15,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 2750 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3797 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:12:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-03-15 17:12:15,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5956. [2022-03-15 17:12:15,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 5955 states have (on average 3.4636439966414776) internal successors, (20626), 5955 states have internal predecessors, (20626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 20626 transitions. [2022-03-15 17:12:16,013 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 20626 transitions. Word has length 39 [2022-03-15 17:12:16,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:16,013 INFO L470 AbstractCegarLoop]: Abstraction has 5956 states and 20626 transitions. [2022-03-15 17:12:16,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:16,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 20626 transitions. [2022-03-15 17:12:16,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:16,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:16,024 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] [2022-03-15 17:12:16,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-15 17:12:16,024 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:16,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash -172981656, now seen corresponding path program 131 times [2022-03-15 17:12:16,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:16,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450017099] [2022-03-15 17:12:16,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:16,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:16,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:16,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450017099] [2022-03-15 17:12:16,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450017099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:16,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:16,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:16,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730409713] [2022-03-15 17:12:16,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:16,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:16,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:16,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:16,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:16,253 INFO L87 Difference]: Start difference. First operand 5956 states and 20626 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:18,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:18,921 INFO L93 Difference]: Finished difference Result 10007 states and 34455 transitions. [2022-03-15 17:12:18,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-15 17:12:18,921 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:18,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:18,941 INFO L225 Difference]: With dead ends: 10007 [2022-03-15 17:12:18,941 INFO L226 Difference]: Without dead ends: 9944 [2022-03-15 17:12:18,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=536, Invalid=6106, Unknown=0, NotChecked=0, Total=6642 [2022-03-15 17:12:18,942 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 489 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 4107 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:18,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 3100 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4107 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:12:18,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9944 states. [2022-03-15 17:12:19,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9944 to 5948. [2022-03-15 17:12:19,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5948 states, 5947 states have (on average 3.4649403060366573) internal successors, (20606), 5947 states have internal predecessors, (20606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5948 states to 5948 states and 20606 transitions. [2022-03-15 17:12:19,045 INFO L78 Accepts]: Start accepts. Automaton has 5948 states and 20606 transitions. Word has length 39 [2022-03-15 17:12:19,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:19,045 INFO L470 AbstractCegarLoop]: Abstraction has 5948 states and 20606 transitions. [2022-03-15 17:12:19,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:19,045 INFO L276 IsEmpty]: Start isEmpty. Operand 5948 states and 20606 transitions. [2022-03-15 17:12:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:19,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:19,053 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] [2022-03-15 17:12:19,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-15 17:12:19,053 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash -418473754, now seen corresponding path program 132 times [2022-03-15 17:12:19,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:19,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001644463] [2022-03-15 17:12:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:19,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:19,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:19,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001644463] [2022-03-15 17:12:19,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001644463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:19,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:19,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:19,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341669895] [2022-03-15 17:12:19,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:19,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:19,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:19,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:19,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:19,284 INFO L87 Difference]: Start difference. First operand 5948 states and 20606 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:21,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:21,980 INFO L93 Difference]: Finished difference Result 10092 states and 34665 transitions. [2022-03-15 17:12:21,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-15 17:12:21,980 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:21,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:22,001 INFO L225 Difference]: With dead ends: 10092 [2022-03-15 17:12:22,001 INFO L226 Difference]: Without dead ends: 10017 [2022-03-15 17:12:22,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=536, Invalid=6106, Unknown=0, NotChecked=0, Total=6642 [2022-03-15 17:12:22,002 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 498 mSDsluCounter, 3425 mSDsCounter, 0 mSdLazyCounter, 4167 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:22,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 3125 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4167 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:12:22,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10017 states. [2022-03-15 17:12:22,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10017 to 5936. [2022-03-15 17:12:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5936 states, 5935 states have (on average 3.4668913226621734) internal successors, (20576), 5935 states have internal predecessors, (20576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:22,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 20576 transitions. [2022-03-15 17:12:22,105 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 20576 transitions. Word has length 39 [2022-03-15 17:12:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:22,105 INFO L470 AbstractCegarLoop]: Abstraction has 5936 states and 20576 transitions. [2022-03-15 17:12:22,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 20576 transitions. [2022-03-15 17:12:22,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:22,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:22,114 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] [2022-03-15 17:12:22,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-15 17:12:22,114 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:22,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:22,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1602178392, now seen corresponding path program 133 times [2022-03-15 17:12:22,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:22,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497411133] [2022-03-15 17:12:22,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:22,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:22,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:22,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497411133] [2022-03-15 17:12:22,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497411133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:22,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:22,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:22,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595498374] [2022-03-15 17:12:22,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:22,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:22,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:22,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:22,341 INFO L87 Difference]: Start difference. First operand 5936 states and 20576 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:25,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:25,225 INFO L93 Difference]: Finished difference Result 10741 states and 36799 transitions. [2022-03-15 17:12:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-15 17:12:25,225 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:25,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:25,246 INFO L225 Difference]: With dead ends: 10741 [2022-03-15 17:12:25,246 INFO L226 Difference]: Without dead ends: 10686 [2022-03-15 17:12:25,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2185 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=563, Invalid=6577, Unknown=0, NotChecked=0, Total=7140 [2022-03-15 17:12:25,247 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 532 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 4581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:25,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [532 Valid, 3448 Invalid, 4581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 4490 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:12:25,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2022-03-15 17:12:25,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 5938. [2022-03-15 17:12:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5938 states, 5937 states have (on average 3.466565605524676) internal successors, (20581), 5937 states have internal predecessors, (20581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:25,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 20581 transitions. [2022-03-15 17:12:25,355 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 20581 transitions. Word has length 39 [2022-03-15 17:12:25,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:25,355 INFO L470 AbstractCegarLoop]: Abstraction has 5938 states and 20581 transitions. [2022-03-15 17:12:25,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 20581 transitions. [2022-03-15 17:12:25,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:25,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:25,364 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] [2022-03-15 17:12:25,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-15 17:12:25,364 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:25,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:25,364 INFO L85 PathProgramCache]: Analyzing trace with hash -265120378, now seen corresponding path program 134 times [2022-03-15 17:12:25,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:25,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265913086] [2022-03-15 17:12:25,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:25,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:25,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:25,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:25,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265913086] [2022-03-15 17:12:25,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265913086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:25,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:25,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:25,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851288140] [2022-03-15 17:12:25,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:25,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:25,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:25,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:25,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:25,595 INFO L87 Difference]: Start difference. First operand 5938 states and 20581 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:28,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:28,438 INFO L93 Difference]: Finished difference Result 10729 states and 36761 transitions. [2022-03-15 17:12:28,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-15 17:12:28,438 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:28,459 INFO L225 Difference]: With dead ends: 10729 [2022-03-15 17:12:28,460 INFO L226 Difference]: Without dead ends: 10656 [2022-03-15 17:12:28,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2185 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=563, Invalid=6577, Unknown=0, NotChecked=0, Total=7140 [2022-03-15 17:12:28,461 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 523 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 3486 SdHoareTripleChecker+Invalid, 4581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:28,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 3486 Invalid, 4581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 4490 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:12:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10656 states. [2022-03-15 17:12:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10656 to 5932. [2022-03-15 17:12:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5932 states, 5931 states have (on average 3.4678806272129488) internal successors, (20568), 5931 states have internal predecessors, (20568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5932 states to 5932 states and 20568 transitions. [2022-03-15 17:12:28,571 INFO L78 Accepts]: Start accepts. Automaton has 5932 states and 20568 transitions. Word has length 39 [2022-03-15 17:12:28,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:28,571 INFO L470 AbstractCegarLoop]: Abstraction has 5932 states and 20568 transitions. [2022-03-15 17:12:28,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:28,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5932 states and 20568 transitions. [2022-03-15 17:12:28,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:28,579 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:28,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:12:28,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-15 17:12:28,580 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:28,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:28,580 INFO L85 PathProgramCache]: Analyzing trace with hash -634695142, now seen corresponding path program 135 times [2022-03-15 17:12:28,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:28,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081136895] [2022-03-15 17:12:28,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:28,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:28,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:28,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081136895] [2022-03-15 17:12:28,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081136895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:28,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:28,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:28,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62951957] [2022-03-15 17:12:28,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:28,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:28,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:28,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:28,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:28,841 INFO L87 Difference]: Start difference. First operand 5932 states and 20568 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:32,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:32,409 INFO L93 Difference]: Finished difference Result 12644 states and 42987 transitions. [2022-03-15 17:12:32,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-03-15 17:12:32,410 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:32,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:32,435 INFO L225 Difference]: With dead ends: 12644 [2022-03-15 17:12:32,435 INFO L226 Difference]: Without dead ends: 12526 [2022-03-15 17:12:32,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4303 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=884, Invalid=11548, Unknown=0, NotChecked=0, Total=12432 [2022-03-15 17:12:32,437 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 629 mSDsluCounter, 3594 mSDsCounter, 0 mSdLazyCounter, 4653 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 4821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 4653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:32,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 3342 Invalid, 4821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 4653 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 17:12:32,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12526 states. [2022-03-15 17:12:32,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12526 to 6322. [2022-03-15 17:12:32,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6322 states, 6321 states have (on average 3.479829140958709) internal successors, (21996), 6321 states have internal predecessors, (21996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6322 states to 6322 states and 21996 transitions. [2022-03-15 17:12:32,589 INFO L78 Accepts]: Start accepts. Automaton has 6322 states and 21996 transitions. Word has length 39 [2022-03-15 17:12:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:32,589 INFO L470 AbstractCegarLoop]: Abstraction has 6322 states and 21996 transitions. [2022-03-15 17:12:32,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6322 states and 21996 transitions. [2022-03-15 17:12:32,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:32,598 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:32,598 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] [2022-03-15 17:12:32,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-15 17:12:32,598 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:32,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:32,599 INFO L85 PathProgramCache]: Analyzing trace with hash 537957080, now seen corresponding path program 136 times [2022-03-15 17:12:32,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:32,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535193439] [2022-03-15 17:12:32,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:32,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:32,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:32,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:32,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535193439] [2022-03-15 17:12:32,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535193439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:32,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:32,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:32,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429665127] [2022-03-15 17:12:32,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:32,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:32,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:32,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:32,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:32,840 INFO L87 Difference]: Start difference. First operand 6322 states and 21996 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:36,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:36,623 INFO L93 Difference]: Finished difference Result 13538 states and 45942 transitions. [2022-03-15 17:12:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-15 17:12:36,623 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:36,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:36,651 INFO L225 Difference]: With dead ends: 13538 [2022-03-15 17:12:36,651 INFO L226 Difference]: Without dead ends: 13420 [2022-03-15 17:12:36,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4487 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=915, Invalid=11967, Unknown=0, NotChecked=0, Total=12882 [2022-03-15 17:12:36,652 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 649 mSDsluCounter, 3868 mSDsCounter, 0 mSdLazyCounter, 4904 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 5075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 4904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:36,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 3615 Invalid, 5075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 4904 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:12:36,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13420 states. [2022-03-15 17:12:36,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13420 to 6375. [2022-03-15 17:12:36,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6375 states, 6374 states have (on average 3.479290869155946) internal successors, (22177), 6374 states have internal predecessors, (22177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:36,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6375 states to 6375 states and 22177 transitions. [2022-03-15 17:12:36,780 INFO L78 Accepts]: Start accepts. Automaton has 6375 states and 22177 transitions. Word has length 39 [2022-03-15 17:12:36,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:36,780 INFO L470 AbstractCegarLoop]: Abstraction has 6375 states and 22177 transitions. [2022-03-15 17:12:36,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:36,780 INFO L276 IsEmpty]: Start isEmpty. Operand 6375 states and 22177 transitions. [2022-03-15 17:12:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:36,789 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:36,789 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] [2022-03-15 17:12:36,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-15 17:12:36,789 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:36,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:36,790 INFO L85 PathProgramCache]: Analyzing trace with hash 470212200, now seen corresponding path program 137 times [2022-03-15 17:12:36,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:36,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249912913] [2022-03-15 17:12:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:36,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:37,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:37,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249912913] [2022-03-15 17:12:37,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249912913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:37,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:37,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:37,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562466227] [2022-03-15 17:12:37,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:37,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:37,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:37,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:37,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:37,020 INFO L87 Difference]: Start difference. First operand 6375 states and 22177 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:40,646 INFO L93 Difference]: Finished difference Result 12677 states and 43055 transitions. [2022-03-15 17:12:40,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-03-15 17:12:40,646 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:40,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:40,672 INFO L225 Difference]: With dead ends: 12677 [2022-03-15 17:12:40,672 INFO L226 Difference]: Without dead ends: 12612 [2022-03-15 17:12:40,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4304 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=873, Invalid=11559, Unknown=0, NotChecked=0, Total=12432 [2022-03-15 17:12:40,673 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 630 mSDsluCounter, 3658 mSDsCounter, 0 mSdLazyCounter, 4671 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 4833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 4671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:40,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 3367 Invalid, 4833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 4671 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 17:12:40,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12612 states. [2022-03-15 17:12:40,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12612 to 6376. [2022-03-15 17:12:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6376 states, 6375 states have (on average 3.478901960784314) internal successors, (22178), 6375 states have internal predecessors, (22178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:40,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6376 states to 6376 states and 22178 transitions. [2022-03-15 17:12:40,801 INFO L78 Accepts]: Start accepts. Automaton has 6376 states and 22178 transitions. Word has length 39 [2022-03-15 17:12:40,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:40,801 INFO L470 AbstractCegarLoop]: Abstraction has 6376 states and 22178 transitions. [2022-03-15 17:12:40,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:40,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6376 states and 22178 transitions. [2022-03-15 17:12:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:40,810 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:40,810 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] [2022-03-15 17:12:40,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-15 17:12:40,810 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:40,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:40,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1457429558, now seen corresponding path program 138 times [2022-03-15 17:12:40,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:40,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502979722] [2022-03-15 17:12:40,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:40,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:41,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:41,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502979722] [2022-03-15 17:12:41,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502979722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:41,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:41,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:41,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016290069] [2022-03-15 17:12:41,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:41,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:41,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:41,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:41,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:41,060 INFO L87 Difference]: Start difference. First operand 6376 states and 22178 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:44,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:44,809 INFO L93 Difference]: Finished difference Result 13586 states and 46079 transitions. [2022-03-15 17:12:44,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-03-15 17:12:44,810 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:44,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:44,837 INFO L225 Difference]: With dead ends: 13586 [2022-03-15 17:12:44,837 INFO L226 Difference]: Without dead ends: 13436 [2022-03-15 17:12:44,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4393 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=894, Invalid=11762, Unknown=0, NotChecked=0, Total=12656 [2022-03-15 17:12:44,839 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 638 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 4973 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3630 SdHoareTripleChecker+Invalid, 5136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 4973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:44,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [638 Valid, 3630 Invalid, 5136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 4973 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:12:44,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13436 states. [2022-03-15 17:12:44,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13436 to 6336. [2022-03-15 17:12:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6336 states, 6335 states have (on average 3.4820836621941593) internal successors, (22059), 6335 states have internal predecessors, (22059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6336 states to 6336 states and 22059 transitions. [2022-03-15 17:12:44,991 INFO L78 Accepts]: Start accepts. Automaton has 6336 states and 22059 transitions. Word has length 39 [2022-03-15 17:12:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:44,991 INFO L470 AbstractCegarLoop]: Abstraction has 6336 states and 22059 transitions. [2022-03-15 17:12:44,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 6336 states and 22059 transitions. [2022-03-15 17:12:45,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:45,000 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:45,000 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] [2022-03-15 17:12:45,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-15 17:12:45,000 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:45,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:45,000 INFO L85 PathProgramCache]: Analyzing trace with hash 609384356, now seen corresponding path program 139 times [2022-03-15 17:12:45,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:45,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573645878] [2022-03-15 17:12:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:45,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:45,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:45,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573645878] [2022-03-15 17:12:45,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573645878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:45,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:45,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:45,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870473004] [2022-03-15 17:12:45,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:45,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:45,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:45,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:45,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:45,223 INFO L87 Difference]: Start difference. First operand 6336 states and 22059 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:49,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:49,700 INFO L93 Difference]: Finished difference Result 13288 states and 44858 transitions. [2022-03-15 17:12:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-15 17:12:49,700 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:49,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:49,726 INFO L225 Difference]: With dead ends: 13288 [2022-03-15 17:12:49,726 INFO L226 Difference]: Without dead ends: 13083 [2022-03-15 17:12:49,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5809 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1074, Invalid=14928, Unknown=0, NotChecked=0, Total=16002 [2022-03-15 17:12:49,728 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 675 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 5622 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 3934 SdHoareTripleChecker+Invalid, 5794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 5622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:49,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 3934 Invalid, 5794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 5622 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 17:12:49,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13083 states. [2022-03-15 17:12:49,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13083 to 6470. [2022-03-15 17:12:49,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6470 states, 6469 states have (on average 3.488019786674911) internal successors, (22564), 6469 states have internal predecessors, (22564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6470 states to 6470 states and 22564 transitions. [2022-03-15 17:12:49,856 INFO L78 Accepts]: Start accepts. Automaton has 6470 states and 22564 transitions. Word has length 39 [2022-03-15 17:12:49,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:49,856 INFO L470 AbstractCegarLoop]: Abstraction has 6470 states and 22564 transitions. [2022-03-15 17:12:49,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:49,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6470 states and 22564 transitions. [2022-03-15 17:12:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:49,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:49,866 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] [2022-03-15 17:12:49,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-15 17:12:49,866 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:49,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:49,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1527867926, now seen corresponding path program 140 times [2022-03-15 17:12:49,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:49,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203585538] [2022-03-15 17:12:49,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:49,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:50,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:50,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203585538] [2022-03-15 17:12:50,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203585538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:50,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:50,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:50,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707439186] [2022-03-15 17:12:50,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:50,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:50,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:50,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:50,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:50,127 INFO L87 Difference]: Start difference. First operand 6470 states and 22564 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:52,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:52,963 INFO L93 Difference]: Finished difference Result 11615 states and 39719 transitions. [2022-03-15 17:12:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-15 17:12:52,964 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:52,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:52,997 INFO L225 Difference]: With dead ends: 11615 [2022-03-15 17:12:52,997 INFO L226 Difference]: Without dead ends: 11572 [2022-03-15 17:12:52,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2131 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=534, Invalid=6438, Unknown=0, NotChecked=0, Total=6972 [2022-03-15 17:12:52,998 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 564 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 4534 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 4642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 4534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:52,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [564 Valid, 3225 Invalid, 4642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 4534 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:12:53,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2022-03-15 17:12:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 6482. [2022-03-15 17:12:53,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6482 states, 6481 states have (on average 3.486344699891992) internal successors, (22595), 6481 states have internal predecessors, (22595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:53,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6482 states to 6482 states and 22595 transitions. [2022-03-15 17:12:53,123 INFO L78 Accepts]: Start accepts. Automaton has 6482 states and 22595 transitions. Word has length 39 [2022-03-15 17:12:53,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:53,123 INFO L470 AbstractCegarLoop]: Abstraction has 6482 states and 22595 transitions. [2022-03-15 17:12:53,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:53,123 INFO L276 IsEmpty]: Start isEmpty. Operand 6482 states and 22595 transitions. [2022-03-15 17:12:53,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:53,132 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:53,132 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] [2022-03-15 17:12:53,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-15 17:12:53,133 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:53,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:53,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1548016660, now seen corresponding path program 141 times [2022-03-15 17:12:53,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:53,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95864268] [2022-03-15 17:12:53,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:53,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:53,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:53,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95864268] [2022-03-15 17:12:53,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95864268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:53,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:53,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:53,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310282675] [2022-03-15 17:12:53,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:53,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:53,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:53,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:53,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:53,379 INFO L87 Difference]: Start difference. First operand 6482 states and 22595 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:55,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:55,958 INFO L93 Difference]: Finished difference Result 10838 states and 37200 transitions. [2022-03-15 17:12:55,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-15 17:12:55,958 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:55,981 INFO L225 Difference]: With dead ends: 10838 [2022-03-15 17:12:55,981 INFO L226 Difference]: Without dead ends: 10795 [2022-03-15 17:12:55,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1815 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=490, Invalid=5672, Unknown=0, NotChecked=0, Total=6162 [2022-03-15 17:12:55,982 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 551 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 3995 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 4101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:55,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 2825 Invalid, 4101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3995 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 17:12:55,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-03-15 17:12:56,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 6478. [2022-03-15 17:12:56,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6478 states, 6477 states have (on average 3.4869538366527713) internal successors, (22585), 6477 states have internal predecessors, (22585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:56,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6478 states to 6478 states and 22585 transitions. [2022-03-15 17:12:56,102 INFO L78 Accepts]: Start accepts. Automaton has 6478 states and 22585 transitions. Word has length 39 [2022-03-15 17:12:56,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:56,102 INFO L470 AbstractCegarLoop]: Abstraction has 6478 states and 22585 transitions. [2022-03-15 17:12:56,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:56,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6478 states and 22585 transitions. [2022-03-15 17:12:56,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:56,111 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:56,112 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] [2022-03-15 17:12:56,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-15 17:12:56,112 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:56,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:56,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1594447148, now seen corresponding path program 142 times [2022-03-15 17:12:56,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:56,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137227825] [2022-03-15 17:12:56,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:56,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:12:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:12:56,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:12:56,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137227825] [2022-03-15 17:12:56,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137227825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:12:56,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:12:56,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:12:56,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366092916] [2022-03-15 17:12:56,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:12:56,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:12:56,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:12:56,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:12:56,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:12:56,372 INFO L87 Difference]: Start difference. First operand 6478 states and 22585 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:59,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:12:59,754 INFO L93 Difference]: Finished difference Result 12609 states and 42778 transitions. [2022-03-15 17:12:59,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-15 17:12:59,754 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:12:59,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:12:59,779 INFO L225 Difference]: With dead ends: 12609 [2022-03-15 17:12:59,779 INFO L226 Difference]: Without dead ends: 12428 [2022-03-15 17:12:59,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2957 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=692, Invalid=8428, Unknown=0, NotChecked=0, Total=9120 [2022-03-15 17:12:59,780 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 582 mSDsluCounter, 3803 mSDsCounter, 0 mSdLazyCounter, 4879 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 5011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 4879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:12:59,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 3544 Invalid, 5011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 4879 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:12:59,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12428 states. [2022-03-15 17:12:59,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12428 to 6615. [2022-03-15 17:12:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6615 states, 6614 states have (on average 3.487753250680375) internal successors, (23068), 6614 states have internal predecessors, (23068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 23068 transitions. [2022-03-15 17:12:59,937 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 23068 transitions. Word has length 39 [2022-03-15 17:12:59,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:12:59,937 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 23068 transitions. [2022-03-15 17:12:59,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:12:59,937 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 23068 transitions. [2022-03-15 17:12:59,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:12:59,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:12:59,947 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] [2022-03-15 17:12:59,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-15 17:12:59,947 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:12:59,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:12:59,948 INFO L85 PathProgramCache]: Analyzing trace with hash 620953606, now seen corresponding path program 143 times [2022-03-15 17:12:59,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:12:59,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278726234] [2022-03-15 17:12:59,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:12:59,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:12:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:00,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:00,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278726234] [2022-03-15 17:13:00,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278726234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:00,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:00,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:13:00,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360675414] [2022-03-15 17:13:00,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:00,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:13:00,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:00,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:13:00,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:13:00,160 INFO L87 Difference]: Start difference. First operand 6615 states and 23068 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:03,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:03,101 INFO L93 Difference]: Finished difference Result 12388 states and 42188 transitions. [2022-03-15 17:13:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-15 17:13:03,101 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:03,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:03,126 INFO L225 Difference]: With dead ends: 12388 [2022-03-15 17:13:03,127 INFO L226 Difference]: Without dead ends: 12312 [2022-03-15 17:13:03,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2388 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=593, Invalid=6889, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 17:13:03,127 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 542 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 4358 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 4467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:03,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [542 Valid, 3114 Invalid, 4467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4358 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:13:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12312 states. [2022-03-15 17:13:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12312 to 6623. [2022-03-15 17:13:03,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 6622 states have (on average 3.485955904560556) internal successors, (23084), 6622 states have internal predecessors, (23084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 23084 transitions. [2022-03-15 17:13:03,247 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 23084 transitions. Word has length 39 [2022-03-15 17:13:03,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:03,247 INFO L470 AbstractCegarLoop]: Abstraction has 6623 states and 23084 transitions. [2022-03-15 17:13:03,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:03,247 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 23084 transitions. [2022-03-15 17:13:03,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:03,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:03,257 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] [2022-03-15 17:13:03,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-15 17:13:03,258 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:03,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:03,258 INFO L85 PathProgramCache]: Analyzing trace with hash -397100006, now seen corresponding path program 144 times [2022-03-15 17:13:03,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:03,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852800834] [2022-03-15 17:13:03,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:03,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:03,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:03,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852800834] [2022-03-15 17:13:03,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852800834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:03,487 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:03,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:03,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360023007] [2022-03-15 17:13:03,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:03,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:03,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:03,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:03,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:03,488 INFO L87 Difference]: Start difference. First operand 6623 states and 23084 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:06,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:06,737 INFO L93 Difference]: Finished difference Result 12474 states and 42434 transitions. [2022-03-15 17:13:06,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-15 17:13:06,737 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:06,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:06,762 INFO L225 Difference]: With dead ends: 12474 [2022-03-15 17:13:06,762 INFO L226 Difference]: Without dead ends: 12404 [2022-03-15 17:13:06,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2812 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=667, Invalid=8075, Unknown=0, NotChecked=0, Total=8742 [2022-03-15 17:13:06,763 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 568 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 4801 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 4931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 4801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:06,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [568 Valid, 3484 Invalid, 4931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 4801 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 17:13:06,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12404 states. [2022-03-15 17:13:06,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12404 to 6611. [2022-03-15 17:13:06,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 6610 states have (on average 3.4877458396369136) internal successors, (23054), 6610 states have internal predecessors, (23054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 23054 transitions. [2022-03-15 17:13:06,888 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 23054 transitions. Word has length 39 [2022-03-15 17:13:06,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:06,888 INFO L470 AbstractCegarLoop]: Abstraction has 6611 states and 23054 transitions. [2022-03-15 17:13:06,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:06,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 23054 transitions. [2022-03-15 17:13:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:06,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:06,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:13:06,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-15 17:13:06,898 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:06,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:06,898 INFO L85 PathProgramCache]: Analyzing trace with hash 79287864, now seen corresponding path program 145 times [2022-03-15 17:13:06,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:06,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649993164] [2022-03-15 17:13:06,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:06,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:07,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:07,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649993164] [2022-03-15 17:13:07,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649993164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:07,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:07,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:07,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914112883] [2022-03-15 17:13:07,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:07,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:07,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:07,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:07,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:07,129 INFO L87 Difference]: Start difference. First operand 6611 states and 23054 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:11,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:11,613 INFO L93 Difference]: Finished difference Result 13395 states and 45264 transitions. [2022-03-15 17:13:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-03-15 17:13:11,613 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:11,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:11,641 INFO L225 Difference]: With dead ends: 13395 [2022-03-15 17:13:11,641 INFO L226 Difference]: Without dead ends: 13235 [2022-03-15 17:13:11,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5698 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1045, Invalid=14705, Unknown=0, NotChecked=0, Total=15750 [2022-03-15 17:13:11,643 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 683 mSDsluCounter, 4228 mSDsCounter, 0 mSdLazyCounter, 5679 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 5849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 5679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:11,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 3979 Invalid, 5849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 5679 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 17:13:11,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13235 states. [2022-03-15 17:13:11,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13235 to 6612. [2022-03-15 17:13:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6612 states, 6611 states have (on average 3.4881258508546362) internal successors, (23060), 6611 states have internal predecessors, (23060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6612 states to 6612 states and 23060 transitions. [2022-03-15 17:13:11,807 INFO L78 Accepts]: Start accepts. Automaton has 6612 states and 23060 transitions. Word has length 39 [2022-03-15 17:13:11,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:11,807 INFO L470 AbstractCegarLoop]: Abstraction has 6612 states and 23060 transitions. [2022-03-15 17:13:11,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 6612 states and 23060 transitions. [2022-03-15 17:13:11,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:11,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:11,817 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] [2022-03-15 17:13:11,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-15 17:13:11,817 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:11,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:11,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1458131366, now seen corresponding path program 146 times [2022-03-15 17:13:11,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:11,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217395191] [2022-03-15 17:13:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:11,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:12,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:12,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217395191] [2022-03-15 17:13:12,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217395191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:12,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:12,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:12,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136984635] [2022-03-15 17:13:12,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:12,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:12,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:12,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:12,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:12,042 INFO L87 Difference]: Start difference. First operand 6612 states and 23060 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:14,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:14,905 INFO L93 Difference]: Finished difference Result 11771 states and 40218 transitions. [2022-03-15 17:13:14,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-15 17:13:14,905 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:14,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:14,934 INFO L225 Difference]: With dead ends: 11771 [2022-03-15 17:13:14,934 INFO L226 Difference]: Without dead ends: 11728 [2022-03-15 17:13:14,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2134 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=518, Invalid=6454, Unknown=0, NotChecked=0, Total=6972 [2022-03-15 17:13:14,935 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 560 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 4596 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 4697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 4596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:14,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 3280 Invalid, 4697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 4596 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 17:13:14,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11728 states. [2022-03-15 17:13:15,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11728 to 6627. [2022-03-15 17:13:15,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6627 states, 6626 states have (on average 3.4858134621189256) internal successors, (23097), 6626 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:15,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6627 states to 6627 states and 23097 transitions. [2022-03-15 17:13:15,067 INFO L78 Accepts]: Start accepts. Automaton has 6627 states and 23097 transitions. Word has length 39 [2022-03-15 17:13:15,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:15,067 INFO L470 AbstractCegarLoop]: Abstraction has 6627 states and 23097 transitions. [2022-03-15 17:13:15,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:15,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6627 states and 23097 transitions. [2022-03-15 17:13:15,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:15,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:15,077 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] [2022-03-15 17:13:15,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-15 17:13:15,077 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:15,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:15,078 INFO L85 PathProgramCache]: Analyzing trace with hash 291975770, now seen corresponding path program 147 times [2022-03-15 17:13:15,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:15,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407409100] [2022-03-15 17:13:15,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:15,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:15,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:15,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:15,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407409100] [2022-03-15 17:13:15,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407409100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:15,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:15,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:15,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209800964] [2022-03-15 17:13:15,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:15,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:15,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:15,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:15,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:15,298 INFO L87 Difference]: Start difference. First operand 6627 states and 23097 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:17,847 INFO L93 Difference]: Finished difference Result 10795 states and 37107 transitions. [2022-03-15 17:13:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-15 17:13:17,847 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:17,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:17,868 INFO L225 Difference]: With dead ends: 10795 [2022-03-15 17:13:17,868 INFO L226 Difference]: Without dead ends: 10683 [2022-03-15 17:13:17,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1756 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=464, Invalid=5542, Unknown=0, NotChecked=0, Total=6006 [2022-03-15 17:13:17,868 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 529 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 4097 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:17,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 2948 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4097 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 17:13:17,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-03-15 17:13:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 6624. [2022-03-15 17:13:17,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6624 states, 6623 states have (on average 3.486637475464291) internal successors, (23092), 6623 states have internal predecessors, (23092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 23092 transitions. [2022-03-15 17:13:17,979 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 23092 transitions. Word has length 39 [2022-03-15 17:13:17,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:17,979 INFO L470 AbstractCegarLoop]: Abstraction has 6624 states and 23092 transitions. [2022-03-15 17:13:17,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 23092 transitions. [2022-03-15 17:13:17,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:17,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:17,989 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] [2022-03-15 17:13:17,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-15 17:13:17,989 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:17,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:17,989 INFO L85 PathProgramCache]: Analyzing trace with hash 909194172, now seen corresponding path program 148 times [2022-03-15 17:13:17,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:17,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415310240] [2022-03-15 17:13:17,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:17,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:18,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:18,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:18,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415310240] [2022-03-15 17:13:18,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415310240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:18,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:18,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:18,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435491910] [2022-03-15 17:13:18,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:18,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:18,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:18,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:18,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:18,214 INFO L87 Difference]: Start difference. First operand 6624 states and 23092 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:21,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:21,588 INFO L93 Difference]: Finished difference Result 12608 states and 42790 transitions. [2022-03-15 17:13:21,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-15 17:13:21,588 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:21,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:21,614 INFO L225 Difference]: With dead ends: 12608 [2022-03-15 17:13:21,614 INFO L226 Difference]: Without dead ends: 12451 [2022-03-15 17:13:21,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3039 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=680, Invalid=8632, Unknown=0, NotChecked=0, Total=9312 [2022-03-15 17:13:21,616 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 591 mSDsluCounter, 3908 mSDsCounter, 0 mSdLazyCounter, 5034 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 5155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 5034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:21,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 3602 Invalid, 5155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 5034 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:13:21,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12451 states. [2022-03-15 17:13:21,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12451 to 6521. [2022-03-15 17:13:21,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 6520 states have (on average 3.488036809815951) internal successors, (22742), 6520 states have internal predecessors, (22742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 22742 transitions. [2022-03-15 17:13:21,746 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 22742 transitions. Word has length 39 [2022-03-15 17:13:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:21,746 INFO L470 AbstractCegarLoop]: Abstraction has 6521 states and 22742 transitions. [2022-03-15 17:13:21,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:21,746 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 22742 transitions. [2022-03-15 17:13:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:21,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:21,755 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] [2022-03-15 17:13:21,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-15 17:13:21,756 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:21,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:21,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1106490028, now seen corresponding path program 149 times [2022-03-15 17:13:21,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:21,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251836725] [2022-03-15 17:13:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:21,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:21,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:21,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251836725] [2022-03-15 17:13:21,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251836725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:21,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:21,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:13:21,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702180986] [2022-03-15 17:13:21,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:21,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:13:21,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:21,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:13:21,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:13:21,968 INFO L87 Difference]: Start difference. First operand 6521 states and 22742 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:24,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:24,918 INFO L93 Difference]: Finished difference Result 12209 states and 41733 transitions. [2022-03-15 17:13:24,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-15 17:13:24,918 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:24,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:24,943 INFO L225 Difference]: With dead ends: 12209 [2022-03-15 17:13:24,943 INFO L226 Difference]: Without dead ends: 12133 [2022-03-15 17:13:24,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2388 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=590, Invalid=6892, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 17:13:24,944 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 538 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 4381 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 4485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 4381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:24,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 3130 Invalid, 4485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 4381 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 17:13:24,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12133 states. [2022-03-15 17:13:25,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12133 to 6535. [2022-03-15 17:13:25,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6535 states, 6534 states have (on average 3.485154576063667) internal successors, (22772), 6534 states have internal predecessors, (22772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:25,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6535 states to 6535 states and 22772 transitions. [2022-03-15 17:13:25,126 INFO L78 Accepts]: Start accepts. Automaton has 6535 states and 22772 transitions. Word has length 39 [2022-03-15 17:13:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:25,126 INFO L470 AbstractCegarLoop]: Abstraction has 6535 states and 22772 transitions. [2022-03-15 17:13:25,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:25,127 INFO L276 IsEmpty]: Start isEmpty. Operand 6535 states and 22772 transitions. [2022-03-15 17:13:25,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:25,135 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:25,136 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] [2022-03-15 17:13:25,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-15 17:13:25,136 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:25,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:25,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1640554934, now seen corresponding path program 150 times [2022-03-15 17:13:25,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:25,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803194127] [2022-03-15 17:13:25,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:25,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:25,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:25,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803194127] [2022-03-15 17:13:25,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803194127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:25,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:25,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:25,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311488811] [2022-03-15 17:13:25,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:25,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:25,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:25,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:25,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:25,359 INFO L87 Difference]: Start difference. First operand 6535 states and 22772 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:28,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:28,649 INFO L93 Difference]: Finished difference Result 12365 states and 42153 transitions. [2022-03-15 17:13:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-15 17:13:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:28,675 INFO L225 Difference]: With dead ends: 12365 [2022-03-15 17:13:28,675 INFO L226 Difference]: Without dead ends: 12274 [2022-03-15 17:13:28,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2736 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=645, Invalid=7911, Unknown=0, NotChecked=0, Total=8556 [2022-03-15 17:13:28,676 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 569 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 4927 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 5045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 4927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:28,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 3509 Invalid, 5045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 4927 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 17:13:28,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12274 states. [2022-03-15 17:13:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12274 to 6511. [2022-03-15 17:13:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6511 states, 6510 states have (on average 3.489554531490015) internal successors, (22717), 6510 states have internal predecessors, (22717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:28,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6511 states to 6511 states and 22717 transitions. [2022-03-15 17:13:28,815 INFO L78 Accepts]: Start accepts. Automaton has 6511 states and 22717 transitions. Word has length 39 [2022-03-15 17:13:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:28,815 INFO L470 AbstractCegarLoop]: Abstraction has 6511 states and 22717 transitions. [2022-03-15 17:13:28,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 6511 states and 22717 transitions. [2022-03-15 17:13:28,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:28,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:28,826 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] [2022-03-15 17:13:28,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-15 17:13:28,827 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:28,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:28,827 INFO L85 PathProgramCache]: Analyzing trace with hash -339149448, now seen corresponding path program 151 times [2022-03-15 17:13:28,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:28,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60944663] [2022-03-15 17:13:28,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:28,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:29,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:29,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60944663] [2022-03-15 17:13:29,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60944663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:29,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:29,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:29,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796280472] [2022-03-15 17:13:29,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:29,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:29,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:29,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:29,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:29,053 INFO L87 Difference]: Start difference. First operand 6511 states and 22717 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:32,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:32,785 INFO L93 Difference]: Finished difference Result 13797 states and 46865 transitions. [2022-03-15 17:13:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-03-15 17:13:32,786 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:32,813 INFO L225 Difference]: With dead ends: 13797 [2022-03-15 17:13:32,813 INFO L226 Difference]: Without dead ends: 13624 [2022-03-15 17:13:32,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3858 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=808, Invalid=10534, Unknown=0, NotChecked=0, Total=11342 [2022-03-15 17:13:32,814 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 647 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 5256 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 5426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 5256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:32,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 3671 Invalid, 5426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 5256 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 17:13:32,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13624 states. [2022-03-15 17:13:32,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13624 to 6571. [2022-03-15 17:13:32,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 6570 states have (on average 3.4881278538812786) internal successors, (22917), 6570 states have internal predecessors, (22917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 22917 transitions. [2022-03-15 17:13:32,947 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 22917 transitions. Word has length 39 [2022-03-15 17:13:32,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:32,947 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 22917 transitions. [2022-03-15 17:13:32,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:32,947 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 22917 transitions. [2022-03-15 17:13:32,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:32,956 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:32,957 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] [2022-03-15 17:13:32,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-15 17:13:32,957 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:32,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:32,957 INFO L85 PathProgramCache]: Analyzing trace with hash 833502774, now seen corresponding path program 152 times [2022-03-15 17:13:32,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:32,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902619848] [2022-03-15 17:13:32,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:32,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:33,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:33,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902619848] [2022-03-15 17:13:33,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902619848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:33,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:33,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:33,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913701847] [2022-03-15 17:13:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:33,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:33,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:33,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:33,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:33,213 INFO L87 Difference]: Start difference. First operand 6571 states and 22917 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:37,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:37,166 INFO L93 Difference]: Finished difference Result 14359 states and 48671 transitions. [2022-03-15 17:13:37,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-03-15 17:13:37,167 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:37,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:37,195 INFO L225 Difference]: With dead ends: 14359 [2022-03-15 17:13:37,195 INFO L226 Difference]: Without dead ends: 14178 [2022-03-15 17:13:37,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4390 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=900, Invalid=11756, Unknown=0, NotChecked=0, Total=12656 [2022-03-15 17:13:37,196 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 670 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 5249 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 5423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 5249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:37,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 3795 Invalid, 5423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 5249 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 17:13:37,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14178 states. [2022-03-15 17:13:37,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14178 to 6676. [2022-03-15 17:13:37,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6676 states, 6675 states have (on average 3.4885393258426967) internal successors, (23286), 6675 states have internal predecessors, (23286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 23286 transitions. [2022-03-15 17:13:37,329 INFO L78 Accepts]: Start accepts. Automaton has 6676 states and 23286 transitions. Word has length 39 [2022-03-15 17:13:37,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:37,329 INFO L470 AbstractCegarLoop]: Abstraction has 6676 states and 23286 transitions. [2022-03-15 17:13:37,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6676 states and 23286 transitions. [2022-03-15 17:13:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:37,339 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:37,339 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] [2022-03-15 17:13:37,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-15 17:13:37,339 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:37,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:37,339 INFO L85 PathProgramCache]: Analyzing trace with hash 765757894, now seen corresponding path program 153 times [2022-03-15 17:13:37,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:37,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844568615] [2022-03-15 17:13:37,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:37,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:37,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:37,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:37,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844568615] [2022-03-15 17:13:37,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844568615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:37,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:37,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:37,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991207250] [2022-03-15 17:13:37,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:37,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:37,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:37,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:37,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:37,563 INFO L87 Difference]: Start difference. First operand 6676 states and 23286 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:41,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:41,203 INFO L93 Difference]: Finished difference Result 13824 states and 46990 transitions. [2022-03-15 17:13:41,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-15 17:13:41,204 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:41,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:41,231 INFO L225 Difference]: With dead ends: 13824 [2022-03-15 17:13:41,231 INFO L226 Difference]: Without dead ends: 13690 [2022-03-15 17:13:41,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3775 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=786, Invalid=10344, Unknown=0, NotChecked=0, Total=11130 [2022-03-15 17:13:41,232 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 645 mSDsluCounter, 3986 mSDsCounter, 0 mSdLazyCounter, 5211 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 5372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 5211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:41,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 3690 Invalid, 5372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 5211 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 17:13:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13690 states. [2022-03-15 17:13:41,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13690 to 6675. [2022-03-15 17:13:41,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 6674 states have (on average 3.488163020677255) internal successors, (23280), 6674 states have internal predecessors, (23280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:41,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 23280 transitions. [2022-03-15 17:13:41,366 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 23280 transitions. Word has length 39 [2022-03-15 17:13:41,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:41,366 INFO L470 AbstractCegarLoop]: Abstraction has 6675 states and 23280 transitions. [2022-03-15 17:13:41,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:41,366 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 23280 transitions. [2022-03-15 17:13:41,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:41,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:41,375 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] [2022-03-15 17:13:41,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-15 17:13:41,376 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:41,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:41,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1161883864, now seen corresponding path program 154 times [2022-03-15 17:13:41,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:41,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679133745] [2022-03-15 17:13:41,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:41,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:41,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:41,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:41,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679133745] [2022-03-15 17:13:41,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679133745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:41,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:41,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:41,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274893569] [2022-03-15 17:13:41,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:41,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:41,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:41,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:41,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:41,606 INFO L87 Difference]: Start difference. First operand 6675 states and 23280 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:45,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:45,503 INFO L93 Difference]: Finished difference Result 14374 states and 48713 transitions. [2022-03-15 17:13:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-03-15 17:13:45,503 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:45,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:45,532 INFO L225 Difference]: With dead ends: 14374 [2022-03-15 17:13:45,533 INFO L226 Difference]: Without dead ends: 14206 [2022-03-15 17:13:45,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4398 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=882, Invalid=11774, Unknown=0, NotChecked=0, Total=12656 [2022-03-15 17:13:45,534 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 672 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 5353 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 5521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 5353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:45,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 3817 Invalid, 5521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 5353 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-15 17:13:45,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2022-03-15 17:13:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 6559. [2022-03-15 17:13:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6559 states, 6558 states have (on average 3.489021043000915) internal successors, (22881), 6558 states have internal predecessors, (22881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:45,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6559 states to 6559 states and 22881 transitions. [2022-03-15 17:13:45,704 INFO L78 Accepts]: Start accepts. Automaton has 6559 states and 22881 transitions. Word has length 39 [2022-03-15 17:13:45,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:45,704 INFO L470 AbstractCegarLoop]: Abstraction has 6559 states and 22881 transitions. [2022-03-15 17:13:45,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:45,704 INFO L276 IsEmpty]: Start isEmpty. Operand 6559 states and 22881 transitions. [2022-03-15 17:13:45,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:45,714 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:45,714 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] [2022-03-15 17:13:45,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-15 17:13:45,714 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:45,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:45,714 INFO L85 PathProgramCache]: Analyzing trace with hash -158126948, now seen corresponding path program 155 times [2022-03-15 17:13:45,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:45,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282250706] [2022-03-15 17:13:45,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:45,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:45,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:45,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282250706] [2022-03-15 17:13:45,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282250706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:45,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:45,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:45,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471185150] [2022-03-15 17:13:45,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:45,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:45,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:45,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:45,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:45,942 INFO L87 Difference]: Start difference. First operand 6559 states and 22881 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:47,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:47,510 INFO L93 Difference]: Finished difference Result 9304 states and 32116 transitions. [2022-03-15 17:13:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:13:47,510 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:47,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:47,528 INFO L225 Difference]: With dead ends: 9304 [2022-03-15 17:13:47,529 INFO L226 Difference]: Without dead ends: 9237 [2022-03-15 17:13:47,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=2592, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:13:47,529 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 450 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:47,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 2088 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2758 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:13:47,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9237 states. [2022-03-15 17:13:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9237 to 6779. [2022-03-15 17:13:47,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6779 states, 6778 states have (on average 3.487606963706108) internal successors, (23639), 6778 states have internal predecessors, (23639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:47,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6779 states to 6779 states and 23639 transitions. [2022-03-15 17:13:47,667 INFO L78 Accepts]: Start accepts. Automaton has 6779 states and 23639 transitions. Word has length 39 [2022-03-15 17:13:47,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:47,667 INFO L470 AbstractCegarLoop]: Abstraction has 6779 states and 23639 transitions. [2022-03-15 17:13:47,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:47,667 INFO L276 IsEmpty]: Start isEmpty. Operand 6779 states and 23639 transitions. [2022-03-15 17:13:47,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:47,679 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:47,679 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] [2022-03-15 17:13:47,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-15 17:13:47,680 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:47,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:47,680 INFO L85 PathProgramCache]: Analyzing trace with hash -288721796, now seen corresponding path program 156 times [2022-03-15 17:13:47,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:47,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13357691] [2022-03-15 17:13:47,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:47,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:47,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:47,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:47,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13357691] [2022-03-15 17:13:47,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13357691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:47,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:47,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:47,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728139390] [2022-03-15 17:13:47,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:47,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:47,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:47,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:47,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:47,923 INFO L87 Difference]: Start difference. First operand 6779 states and 23639 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:49,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:49,427 INFO L93 Difference]: Finished difference Result 9244 states and 31928 transitions. [2022-03-15 17:13:49,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:13:49,427 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:49,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:49,446 INFO L225 Difference]: With dead ends: 9244 [2022-03-15 17:13:49,446 INFO L226 Difference]: Without dead ends: 9181 [2022-03-15 17:13:49,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=2485, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 17:13:49,447 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 419 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:49,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 1947 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:13:49,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9181 states. [2022-03-15 17:13:49,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9181 to 6771. [2022-03-15 17:13:49,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6771 states, 6770 states have (on average 3.4881831610044314) internal successors, (23615), 6770 states have internal predecessors, (23615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6771 states to 6771 states and 23615 transitions. [2022-03-15 17:13:49,615 INFO L78 Accepts]: Start accepts. Automaton has 6771 states and 23615 transitions. Word has length 39 [2022-03-15 17:13:49,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:49,615 INFO L470 AbstractCegarLoop]: Abstraction has 6771 states and 23615 transitions. [2022-03-15 17:13:49,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 6771 states and 23615 transitions. [2022-03-15 17:13:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:49,625 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:49,625 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] [2022-03-15 17:13:49,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-15 17:13:49,625 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:49,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash -424400388, now seen corresponding path program 157 times [2022-03-15 17:13:49,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:49,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2816979] [2022-03-15 17:13:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:49,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:49,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:49,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2816979] [2022-03-15 17:13:49,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2816979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:49,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:49,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:49,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50411824] [2022-03-15 17:13:49,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:49,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:49,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:49,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:49,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:49,853 INFO L87 Difference]: Start difference. First operand 6771 states and 23615 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:52,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:52,098 INFO L93 Difference]: Finished difference Result 10467 states and 36092 transitions. [2022-03-15 17:13:52,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-15 17:13:52,098 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:52,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:52,119 INFO L225 Difference]: With dead ends: 10467 [2022-03-15 17:13:52,119 INFO L226 Difference]: Without dead ends: 10424 [2022-03-15 17:13:52,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=482, Invalid=5524, Unknown=0, NotChecked=0, Total=6006 [2022-03-15 17:13:52,120 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 575 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 3100 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 3222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 3100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:52,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 2239 Invalid, 3222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 3100 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:13:52,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2022-03-15 17:13:52,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 6983. [2022-03-15 17:13:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6983 states, 6982 states have (on average 3.4925522772844455) internal successors, (24385), 6982 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6983 states to 6983 states and 24385 transitions. [2022-03-15 17:13:52,273 INFO L78 Accepts]: Start accepts. Automaton has 6983 states and 24385 transitions. Word has length 39 [2022-03-15 17:13:52,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:52,273 INFO L470 AbstractCegarLoop]: Abstraction has 6983 states and 24385 transitions. [2022-03-15 17:13:52,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 6983 states and 24385 transitions. [2022-03-15 17:13:52,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:52,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:52,283 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] [2022-03-15 17:13:52,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-15 17:13:52,283 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:52,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:52,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2089968606, now seen corresponding path program 158 times [2022-03-15 17:13:52,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:52,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125540766] [2022-03-15 17:13:52,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:52,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:52,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:52,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125540766] [2022-03-15 17:13:52,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125540766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:52,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:52,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:52,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702060094] [2022-03-15 17:13:52,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:52,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:52,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:52,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:52,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:52,506 INFO L87 Difference]: Start difference. First operand 6983 states and 24385 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:55,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:55,109 INFO L93 Difference]: Finished difference Result 11670 states and 40166 transitions. [2022-03-15 17:13:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-15 17:13:55,110 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:55,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:55,134 INFO L225 Difference]: With dead ends: 11670 [2022-03-15 17:13:55,134 INFO L226 Difference]: Without dead ends: 11606 [2022-03-15 17:13:55,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2200 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=531, Invalid=6609, Unknown=0, NotChecked=0, Total=7140 [2022-03-15 17:13:55,135 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 606 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:55,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [606 Valid, 2665 Invalid, 3591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3466 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:13:55,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11606 states. [2022-03-15 17:13:55,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11606 to 6899. [2022-03-15 17:13:55,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6899 states, 6898 states have (on average 3.4956509133082054) internal successors, (24113), 6898 states have internal predecessors, (24113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:55,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 24113 transitions. [2022-03-15 17:13:55,290 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 24113 transitions. Word has length 39 [2022-03-15 17:13:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:55,290 INFO L470 AbstractCegarLoop]: Abstraction has 6899 states and 24113 transitions. [2022-03-15 17:13:55,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 24113 transitions. [2022-03-15 17:13:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:55,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:55,301 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] [2022-03-15 17:13:55,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-15 17:13:55,301 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:55,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash 494083182, now seen corresponding path program 159 times [2022-03-15 17:13:55,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:55,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137166548] [2022-03-15 17:13:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:55,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:55,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:55,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137166548] [2022-03-15 17:13:55,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137166548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:55,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:55,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:55,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208727724] [2022-03-15 17:13:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:55,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:55,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:55,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:55,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:55,524 INFO L87 Difference]: Start difference. First operand 6899 states and 24113 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:57,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:57,086 INFO L93 Difference]: Finished difference Result 9487 states and 32701 transitions. [2022-03-15 17:13:57,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 17:13:57,087 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:57,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:57,105 INFO L225 Difference]: With dead ends: 9487 [2022-03-15 17:13:57,106 INFO L226 Difference]: Without dead ends: 9432 [2022-03-15 17:13:57,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2022-03-15 17:13:57,106 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 426 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:57,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1961 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:13:57,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9432 states. [2022-03-15 17:13:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9432 to 6901. [2022-03-15 17:13:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6901 states, 6900 states have (on average 3.495072463768116) internal successors, (24116), 6900 states have internal predecessors, (24116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:57,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6901 states to 6901 states and 24116 transitions. [2022-03-15 17:13:57,252 INFO L78 Accepts]: Start accepts. Automaton has 6901 states and 24116 transitions. Word has length 39 [2022-03-15 17:13:57,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:57,252 INFO L470 AbstractCegarLoop]: Abstraction has 6901 states and 24116 transitions. [2022-03-15 17:13:57,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6901 states and 24116 transitions. [2022-03-15 17:13:57,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:57,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:57,262 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] [2022-03-15 17:13:57,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-15 17:13:57,262 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:57,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:57,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1666735404, now seen corresponding path program 160 times [2022-03-15 17:13:57,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:57,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986375444] [2022-03-15 17:13:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:57,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:57,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:57,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986375444] [2022-03-15 17:13:57,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986375444] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:57,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:57,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:57,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760368224] [2022-03-15 17:13:57,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:57,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:57,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:57,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:57,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:57,486 INFO L87 Difference]: Start difference. First operand 6901 states and 24116 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:59,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:13:59,276 INFO L93 Difference]: Finished difference Result 10611 states and 36548 transitions. [2022-03-15 17:13:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-15 17:13:59,276 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:13:59,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:13:59,298 INFO L225 Difference]: With dead ends: 10611 [2022-03-15 17:13:59,298 INFO L226 Difference]: Without dead ends: 10565 [2022-03-15 17:13:59,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=325, Invalid=3215, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:13:59,299 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 451 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 3083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:13:59,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2387 Invalid, 3083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:13:59,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10565 states. [2022-03-15 17:13:59,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10565 to 6905. [2022-03-15 17:13:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6905 states, 6904 states have (on average 3.4942062572421784) internal successors, (24124), 6904 states have internal predecessors, (24124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6905 states to 6905 states and 24124 transitions. [2022-03-15 17:13:59,427 INFO L78 Accepts]: Start accepts. Automaton has 6905 states and 24124 transitions. Word has length 39 [2022-03-15 17:13:59,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:13:59,427 INFO L470 AbstractCegarLoop]: Abstraction has 6905 states and 24124 transitions. [2022-03-15 17:13:59,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:13:59,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states and 24124 transitions. [2022-03-15 17:13:59,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:13:59,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:13:59,437 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] [2022-03-15 17:13:59,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-15 17:13:59,438 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:13:59,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:13:59,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1419269242, now seen corresponding path program 161 times [2022-03-15 17:13:59,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:13:59,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020169581] [2022-03-15 17:13:59,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:13:59,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:13:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:13:59,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:13:59,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:13:59,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020169581] [2022-03-15 17:13:59,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020169581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:13:59,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:13:59,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:13:59,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704743237] [2022-03-15 17:13:59,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:13:59,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:13:59,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:13:59,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:13:59,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:13:59,688 INFO L87 Difference]: Start difference. First operand 6905 states and 24124 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:01,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:01,321 INFO L93 Difference]: Finished difference Result 9531 states and 32885 transitions. [2022-03-15 17:14:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:14:01,321 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:01,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:01,341 INFO L225 Difference]: With dead ends: 9531 [2022-03-15 17:14:01,341 INFO L226 Difference]: Without dead ends: 9478 [2022-03-15 17:14:01,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2022-03-15 17:14:01,341 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 429 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:01,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2087 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:01,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9478 states. [2022-03-15 17:14:01,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9478 to 6895. [2022-03-15 17:14:01,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6895 states, 6894 states have (on average 3.496228604583696) internal successors, (24103), 6894 states have internal predecessors, (24103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:01,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6895 states to 6895 states and 24103 transitions. [2022-03-15 17:14:01,456 INFO L78 Accepts]: Start accepts. Automaton has 6895 states and 24103 transitions. Word has length 39 [2022-03-15 17:14:01,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:01,456 INFO L470 AbstractCegarLoop]: Abstraction has 6895 states and 24103 transitions. [2022-03-15 17:14:01,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:01,456 INFO L276 IsEmpty]: Start isEmpty. Operand 6895 states and 24103 transitions. [2022-03-15 17:14:01,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:01,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:01,467 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] [2022-03-15 17:14:01,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-15 17:14:01,468 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1336822532, now seen corresponding path program 162 times [2022-03-15 17:14:01,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:01,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120992384] [2022-03-15 17:14:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:01,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:01,712 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:01,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120992384] [2022-03-15 17:14:01,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120992384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:01,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:01,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:01,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394461261] [2022-03-15 17:14:01,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:01,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:01,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:01,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:01,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:01,712 INFO L87 Difference]: Start difference. First operand 6895 states and 24103 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:03,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:03,272 INFO L93 Difference]: Finished difference Result 9368 states and 32482 transitions. [2022-03-15 17:14:03,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 17:14:03,273 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:03,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:03,291 INFO L225 Difference]: With dead ends: 9368 [2022-03-15 17:14:03,291 INFO L226 Difference]: Without dead ends: 9301 [2022-03-15 17:14:03,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=234, Invalid=2316, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 17:14:03,292 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 414 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 2856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:03,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 2100 Invalid, 2856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:03,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9301 states. [2022-03-15 17:14:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9301 to 6951. [2022-03-15 17:14:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6951 states, 6950 states have (on average 3.4913669064748203) internal successors, (24265), 6950 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:03,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6951 states to 6951 states and 24265 transitions. [2022-03-15 17:14:03,398 INFO L78 Accepts]: Start accepts. Automaton has 6951 states and 24265 transitions. Word has length 39 [2022-03-15 17:14:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:03,398 INFO L470 AbstractCegarLoop]: Abstraction has 6951 states and 24265 transitions. [2022-03-15 17:14:03,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:03,398 INFO L276 IsEmpty]: Start isEmpty. Operand 6951 states and 24265 transitions. [2022-03-15 17:14:03,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:03,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:03,408 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] [2022-03-15 17:14:03,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-15 17:14:03,408 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:03,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:03,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1467417380, now seen corresponding path program 163 times [2022-03-15 17:14:03,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:03,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213233643] [2022-03-15 17:14:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:03,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:03,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:03,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213233643] [2022-03-15 17:14:03,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213233643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:03,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:03,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:03,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366541525] [2022-03-15 17:14:03,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:03,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:03,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:03,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:03,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:03,645 INFO L87 Difference]: Start difference. First operand 6951 states and 24265 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:05,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:05,099 INFO L93 Difference]: Finished difference Result 9404 states and 32566 transitions. [2022-03-15 17:14:05,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 17:14:05,100 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:05,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:05,119 INFO L225 Difference]: With dead ends: 9404 [2022-03-15 17:14:05,119 INFO L226 Difference]: Without dead ends: 9341 [2022-03-15 17:14:05,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=2212, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 17:14:05,120 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 394 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 2666 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:05,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1957 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2666 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:05,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-03-15 17:14:05,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 6983. [2022-03-15 17:14:05,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6983 states, 6982 states have (on average 3.487396161558293) internal successors, (24349), 6982 states have internal predecessors, (24349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:05,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6983 states to 6983 states and 24349 transitions. [2022-03-15 17:14:05,291 INFO L78 Accepts]: Start accepts. Automaton has 6983 states and 24349 transitions. Word has length 39 [2022-03-15 17:14:05,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:05,291 INFO L470 AbstractCegarLoop]: Abstraction has 6983 states and 24349 transitions. [2022-03-15 17:14:05,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 6983 states and 24349 transitions. [2022-03-15 17:14:05,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:05,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:05,301 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] [2022-03-15 17:14:05,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-15 17:14:05,301 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:05,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:05,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1997317828, now seen corresponding path program 164 times [2022-03-15 17:14:05,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:05,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012042633] [2022-03-15 17:14:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:05,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:05,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:05,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:05,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012042633] [2022-03-15 17:14:05,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012042633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:05,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:05,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:05,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28513226] [2022-03-15 17:14:05,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:05,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:05,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:05,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:05,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:05,552 INFO L87 Difference]: Start difference. First operand 6983 states and 24349 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:07,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:07,015 INFO L93 Difference]: Finished difference Result 9387 states and 32540 transitions. [2022-03-15 17:14:07,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 17:14:07,015 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:07,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:07,034 INFO L225 Difference]: With dead ends: 9387 [2022-03-15 17:14:07,034 INFO L226 Difference]: Without dead ends: 9264 [2022-03-15 17:14:07,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=246, Invalid=2304, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 17:14:07,034 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 384 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 2623 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 2670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:07,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 1997 Invalid, 2670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2623 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9264 states. [2022-03-15 17:14:07,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9264 to 6951. [2022-03-15 17:14:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6951 states, 6950 states have (on average 3.489064748201439) internal successors, (24249), 6950 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:07,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6951 states to 6951 states and 24249 transitions. [2022-03-15 17:14:07,143 INFO L78 Accepts]: Start accepts. Automaton has 6951 states and 24249 transitions. Word has length 39 [2022-03-15 17:14:07,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:07,144 INFO L470 AbstractCegarLoop]: Abstraction has 6951 states and 24249 transitions. [2022-03-15 17:14:07,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:07,144 INFO L276 IsEmpty]: Start isEmpty. Operand 6951 states and 24249 transitions. [2022-03-15 17:14:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:07,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:07,154 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] [2022-03-15 17:14:07,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-15 17:14:07,154 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:07,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:07,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1579238298, now seen corresponding path program 165 times [2022-03-15 17:14:07,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:07,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928418759] [2022-03-15 17:14:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:07,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:07,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:07,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928418759] [2022-03-15 17:14:07,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928418759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:07,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:07,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:07,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372098861] [2022-03-15 17:14:07,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:07,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:07,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:07,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:07,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:07,382 INFO L87 Difference]: Start difference. First operand 6951 states and 24249 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:09,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:09,659 INFO L93 Difference]: Finished difference Result 10564 states and 36421 transitions. [2022-03-15 17:14:09,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-15 17:14:09,659 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:09,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:09,680 INFO L225 Difference]: With dead ends: 10564 [2022-03-15 17:14:09,680 INFO L226 Difference]: Without dead ends: 10458 [2022-03-15 17:14:09,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=485, Invalid=5521, Unknown=0, NotChecked=0, Total=6006 [2022-03-15 17:14:09,681 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 599 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 3192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:09,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 2329 Invalid, 3192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:14:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10458 states. [2022-03-15 17:14:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10458 to 6978. [2022-03-15 17:14:09,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6978 states, 6977 states have (on average 3.486742152787731) internal successors, (24327), 6977 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6978 states to 6978 states and 24327 transitions. [2022-03-15 17:14:09,802 INFO L78 Accepts]: Start accepts. Automaton has 6978 states and 24327 transitions. Word has length 39 [2022-03-15 17:14:09,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:09,802 INFO L470 AbstractCegarLoop]: Abstraction has 6978 states and 24327 transitions. [2022-03-15 17:14:09,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:09,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6978 states and 24327 transitions. [2022-03-15 17:14:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:09,813 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:09,813 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] [2022-03-15 17:14:09,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-15 17:14:09,813 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:09,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:09,813 INFO L85 PathProgramCache]: Analyzing trace with hash -201360004, now seen corresponding path program 166 times [2022-03-15 17:14:09,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:09,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391424123] [2022-03-15 17:14:09,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:09,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:10,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:10,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:10,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391424123] [2022-03-15 17:14:10,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391424123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:10,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:10,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:10,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271659940] [2022-03-15 17:14:10,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:10,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:10,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:10,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:10,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:10,038 INFO L87 Difference]: Start difference. First operand 6978 states and 24327 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:12,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:12,637 INFO L93 Difference]: Finished difference Result 11735 states and 40418 transitions. [2022-03-15 17:14:12,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-15 17:14:12,637 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:12,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:12,661 INFO L225 Difference]: With dead ends: 11735 [2022-03-15 17:14:12,661 INFO L226 Difference]: Without dead ends: 11683 [2022-03-15 17:14:12,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2276 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=540, Invalid=6770, Unknown=0, NotChecked=0, Total=7310 [2022-03-15 17:14:12,662 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 632 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 3453 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 3582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:12,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [632 Valid, 2727 Invalid, 3582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3453 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:14:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11683 states. [2022-03-15 17:14:12,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11683 to 6956. [2022-03-15 17:14:12,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 3.4869877785765637) internal successors, (24252), 6955 states have internal predecessors, (24252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 24252 transitions. [2022-03-15 17:14:12,790 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 24252 transitions. Word has length 39 [2022-03-15 17:14:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:12,790 INFO L470 AbstractCegarLoop]: Abstraction has 6956 states and 24252 transitions. [2022-03-15 17:14:12,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 24252 transitions. [2022-03-15 17:14:12,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:12,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:12,800 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] [2022-03-15 17:14:12,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-15 17:14:12,801 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:12,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1797245428, now seen corresponding path program 167 times [2022-03-15 17:14:12,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:12,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703197092] [2022-03-15 17:14:12,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:12,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:13,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:13,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703197092] [2022-03-15 17:14:13,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703197092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:13,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:13,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:13,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105738855] [2022-03-15 17:14:13,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:13,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:13,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:13,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:13,058 INFO L87 Difference]: Start difference. First operand 6956 states and 24252 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:14,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:14,614 INFO L93 Difference]: Finished difference Result 9517 states and 32824 transitions. [2022-03-15 17:14:14,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 17:14:14,614 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:14,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:14,632 INFO L225 Difference]: With dead ends: 9517 [2022-03-15 17:14:14,633 INFO L226 Difference]: Without dead ends: 9462 [2022-03-15 17:14:14,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=289, Invalid=2573, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:14:14,633 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 426 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:14,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1942 Invalid, 2646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:14,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9462 states. [2022-03-15 17:14:14,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9462 to 6964. [2022-03-15 17:14:14,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6964 states, 6963 states have (on average 3.4864282636794486) internal successors, (24276), 6963 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:14,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6964 states to 6964 states and 24276 transitions. [2022-03-15 17:14:14,738 INFO L78 Accepts]: Start accepts. Automaton has 6964 states and 24276 transitions. Word has length 39 [2022-03-15 17:14:14,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:14,739 INFO L470 AbstractCegarLoop]: Abstraction has 6964 states and 24276 transitions. [2022-03-15 17:14:14,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 6964 states and 24276 transitions. [2022-03-15 17:14:14,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:14,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:14,749 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] [2022-03-15 17:14:14,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-15 17:14:14,749 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:14,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:14,749 INFO L85 PathProgramCache]: Analyzing trace with hash -624593206, now seen corresponding path program 168 times [2022-03-15 17:14:14,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:14,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293966783] [2022-03-15 17:14:14,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:14,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:14,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:14,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:14,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293966783] [2022-03-15 17:14:14,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293966783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:14,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:14,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:14,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523784329] [2022-03-15 17:14:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:14,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:14,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:14,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:14,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:14,972 INFO L87 Difference]: Start difference. First operand 6964 states and 24276 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:16,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:16,769 INFO L93 Difference]: Finished difference Result 10709 states and 36828 transitions. [2022-03-15 17:14:16,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-15 17:14:16,769 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:16,790 INFO L225 Difference]: With dead ends: 10709 [2022-03-15 17:14:16,791 INFO L226 Difference]: Without dead ends: 10649 [2022-03-15 17:14:16,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=323, Invalid=3217, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:14:16,791 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 459 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:16,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 2392 Invalid, 3049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:14:16,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2022-03-15 17:14:16,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 6962. [2022-03-15 17:14:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6961 states have (on average 3.4867116793564144) internal successors, (24271), 6961 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 24271 transitions. [2022-03-15 17:14:16,944 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 24271 transitions. Word has length 39 [2022-03-15 17:14:16,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:16,944 INFO L470 AbstractCegarLoop]: Abstraction has 6962 states and 24271 transitions. [2022-03-15 17:14:16,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 24271 transitions. [2022-03-15 17:14:16,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:16,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:16,955 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] [2022-03-15 17:14:16,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-15 17:14:16,955 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:16,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1792970488, now seen corresponding path program 169 times [2022-03-15 17:14:16,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:16,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434837681] [2022-03-15 17:14:16,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:16,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:17,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:17,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:17,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434837681] [2022-03-15 17:14:17,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434837681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:17,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:17,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:17,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072790215] [2022-03-15 17:14:17,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:17,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:17,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:17,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:17,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:17,182 INFO L87 Difference]: Start difference. First operand 6962 states and 24271 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:18,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:18,673 INFO L93 Difference]: Finished difference Result 9486 states and 32778 transitions. [2022-03-15 17:14:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:14:18,673 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:18,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:18,693 INFO L225 Difference]: With dead ends: 9486 [2022-03-15 17:14:18,693 INFO L226 Difference]: Without dead ends: 9395 [2022-03-15 17:14:18,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=2485, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 17:14:18,694 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 411 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 2573 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:18,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 2005 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2573 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:18,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2022-03-15 17:14:18,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 6962. [2022-03-15 17:14:18,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6961 states have (on average 3.4858497342335872) internal successors, (24265), 6961 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:18,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 24265 transitions. [2022-03-15 17:14:18,805 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 24265 transitions. Word has length 39 [2022-03-15 17:14:18,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:18,805 INFO L470 AbstractCegarLoop]: Abstraction has 6962 states and 24265 transitions. [2022-03-15 17:14:18,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:18,806 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 24265 transitions. [2022-03-15 17:14:18,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:18,816 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:18,816 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] [2022-03-15 17:14:18,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-15 17:14:18,816 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:18,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:18,816 INFO L85 PathProgramCache]: Analyzing trace with hash 290488282, now seen corresponding path program 170 times [2022-03-15 17:14:18,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:18,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223522408] [2022-03-15 17:14:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:18,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:19,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:19,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223522408] [2022-03-15 17:14:19,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223522408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:19,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:19,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:19,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214520988] [2022-03-15 17:14:19,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:19,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:19,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:19,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:19,041 INFO L87 Difference]: Start difference. First operand 6962 states and 24265 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:20,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:20,900 INFO L93 Difference]: Finished difference Result 10861 states and 37319 transitions. [2022-03-15 17:14:20,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-15 17:14:20,900 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:20,922 INFO L225 Difference]: With dead ends: 10861 [2022-03-15 17:14:20,922 INFO L226 Difference]: Without dead ends: 10660 [2022-03-15 17:14:20,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=309, Invalid=3231, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:14:20,923 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 453 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 3151 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 3213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:20,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 2595 Invalid, 3213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3151 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:14:20,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2022-03-15 17:14:21,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 6982. [2022-03-15 17:14:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6982 states, 6981 states have (on average 3.484744305973356) internal successors, (24327), 6981 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6982 states to 6982 states and 24327 transitions. [2022-03-15 17:14:21,048 INFO L78 Accepts]: Start accepts. Automaton has 6982 states and 24327 transitions. Word has length 39 [2022-03-15 17:14:21,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:21,048 INFO L470 AbstractCegarLoop]: Abstraction has 6982 states and 24327 transitions. [2022-03-15 17:14:21,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:21,048 INFO L276 IsEmpty]: Start isEmpty. Operand 6982 states and 24327 transitions. [2022-03-15 17:14:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:21,059 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:21,059 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] [2022-03-15 17:14:21,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-15 17:14:21,059 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:21,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:21,059 INFO L85 PathProgramCache]: Analyzing trace with hash -121376578, now seen corresponding path program 171 times [2022-03-15 17:14:21,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:21,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41259590] [2022-03-15 17:14:21,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:21,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:21,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:21,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41259590] [2022-03-15 17:14:21,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41259590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:21,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:21,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:21,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414191312] [2022-03-15 17:14:21,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:21,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:21,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:21,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:21,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:21,286 INFO L87 Difference]: Start difference. First operand 6982 states and 24327 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:23,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:23,025 INFO L93 Difference]: Finished difference Result 9601 states and 32947 transitions. [2022-03-15 17:14:23,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 17:14:23,026 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:23,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:23,044 INFO L225 Difference]: With dead ends: 9601 [2022-03-15 17:14:23,044 INFO L226 Difference]: Without dead ends: 9534 [2022-03-15 17:14:23,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=319, Invalid=3103, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:14:23,045 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 435 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 2725 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:23,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 2068 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2725 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:23,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9534 states. [2022-03-15 17:14:23,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9534 to 7008. [2022-03-15 17:14:23,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 3.4840873412301985) internal successors, (24413), 7007 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:23,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 24413 transitions. [2022-03-15 17:14:23,155 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 24413 transitions. Word has length 39 [2022-03-15 17:14:23,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:23,156 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 24413 transitions. [2022-03-15 17:14:23,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 24413 transitions. [2022-03-15 17:14:23,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:23,166 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:23,166 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] [2022-03-15 17:14:23,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-15 17:14:23,167 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:23,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:23,167 INFO L85 PathProgramCache]: Analyzing trace with hash -251971426, now seen corresponding path program 172 times [2022-03-15 17:14:23,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:23,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760979226] [2022-03-15 17:14:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:23,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:23,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:23,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760979226] [2022-03-15 17:14:23,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760979226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:23,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:23,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:23,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142973173] [2022-03-15 17:14:23,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:23,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:23,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:23,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:23,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:23,389 INFO L87 Difference]: Start difference. First operand 7008 states and 24413 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:24,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:24,983 INFO L93 Difference]: Finished difference Result 9514 states and 32714 transitions. [2022-03-15 17:14:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:14:24,983 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:24,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:25,002 INFO L225 Difference]: With dead ends: 9514 [2022-03-15 17:14:25,002 INFO L226 Difference]: Without dead ends: 9451 [2022-03-15 17:14:25,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2022-03-15 17:14:25,003 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 398 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:25,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 1915 Invalid, 2601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9451 states. [2022-03-15 17:14:25,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9451 to 7008. [2022-03-15 17:14:25,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 3.4835164835164836) internal successors, (24409), 7007 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 24409 transitions. [2022-03-15 17:14:25,165 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 24409 transitions. Word has length 39 [2022-03-15 17:14:25,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:25,165 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 24409 transitions. [2022-03-15 17:14:25,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:25,165 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 24409 transitions. [2022-03-15 17:14:25,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:25,175 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:25,175 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] [2022-03-15 17:14:25,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-15 17:14:25,175 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:25,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:25,176 INFO L85 PathProgramCache]: Analyzing trace with hash -387650018, now seen corresponding path program 173 times [2022-03-15 17:14:25,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:25,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753162497] [2022-03-15 17:14:25,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:25,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:25,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:25,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753162497] [2022-03-15 17:14:25,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753162497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:25,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:25,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:25,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728671427] [2022-03-15 17:14:25,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:25,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:25,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:25,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:25,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:25,438 INFO L87 Difference]: Start difference. First operand 7008 states and 24409 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:27,943 INFO L93 Difference]: Finished difference Result 10634 states and 36442 transitions. [2022-03-15 17:14:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-15 17:14:27,943 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:27,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:27,964 INFO L225 Difference]: With dead ends: 10634 [2022-03-15 17:14:27,965 INFO L226 Difference]: Without dead ends: 10591 [2022-03-15 17:14:27,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2336 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=592, Invalid=6890, Unknown=0, NotChecked=0, Total=7482 [2022-03-15 17:14:27,966 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 570 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:27,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 2173 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:14:27,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10591 states. [2022-03-15 17:14:28,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10591 to 7018. [2022-03-15 17:14:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7018 states, 7017 states have (on average 3.4839675074818297) internal successors, (24447), 7017 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 24447 transitions. [2022-03-15 17:14:28,142 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 24447 transitions. Word has length 39 [2022-03-15 17:14:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:28,142 INFO L470 AbstractCegarLoop]: Abstraction has 7018 states and 24447 transitions. [2022-03-15 17:14:28,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 24447 transitions. [2022-03-15 17:14:28,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:28,152 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:28,152 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] [2022-03-15 17:14:28,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-15 17:14:28,152 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2126718976, now seen corresponding path program 174 times [2022-03-15 17:14:28,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:28,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924280195] [2022-03-15 17:14:28,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:28,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:28,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:28,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924280195] [2022-03-15 17:14:28,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924280195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:28,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:28,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:28,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986663640] [2022-03-15 17:14:28,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:28,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:28,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:28,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:28,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:28,376 INFO L87 Difference]: Start difference. First operand 7018 states and 24447 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:31,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:31,142 INFO L93 Difference]: Finished difference Result 11861 states and 40576 transitions. [2022-03-15 17:14:31,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-15 17:14:31,142 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:31,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:31,166 INFO L225 Difference]: With dead ends: 11861 [2022-03-15 17:14:31,166 INFO L226 Difference]: Without dead ends: 11809 [2022-03-15 17:14:31,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2834 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=639, Invalid=8103, Unknown=0, NotChecked=0, Total=8742 [2022-03-15 17:14:31,168 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 601 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 3508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:31,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 2603 Invalid, 3508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:14:31,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11809 states. [2022-03-15 17:14:31,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11809 to 7014. [2022-03-15 17:14:31,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 7013 states have (on average 3.4839583630400686) internal successors, (24433), 7013 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 24433 transitions. [2022-03-15 17:14:31,353 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 24433 transitions. Word has length 39 [2022-03-15 17:14:31,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:31,354 INFO L470 AbstractCegarLoop]: Abstraction has 7014 states and 24433 transitions. [2022-03-15 17:14:31,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:31,354 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 24433 transitions. [2022-03-15 17:14:31,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:31,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:31,364 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] [2022-03-15 17:14:31,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-15 17:14:31,364 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:31,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:31,364 INFO L85 PathProgramCache]: Analyzing trace with hash 530833552, now seen corresponding path program 175 times [2022-03-15 17:14:31,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:31,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500663661] [2022-03-15 17:14:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:31,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:31,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:31,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500663661] [2022-03-15 17:14:31,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500663661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:31,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:31,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:31,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804949184] [2022-03-15 17:14:31,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:31,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:31,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:31,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:31,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:31,590 INFO L87 Difference]: Start difference. First operand 7014 states and 24433 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:33,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:33,263 INFO L93 Difference]: Finished difference Result 9608 states and 32926 transitions. [2022-03-15 17:14:33,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-15 17:14:33,263 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:33,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:33,282 INFO L225 Difference]: With dead ends: 9608 [2022-03-15 17:14:33,282 INFO L226 Difference]: Without dead ends: 9553 [2022-03-15 17:14:33,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=339, Invalid=3083, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:14:33,283 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 415 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:33,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 1923 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9553 states. [2022-03-15 17:14:33,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9553 to 7016. [2022-03-15 17:14:33,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 3.4833927298645757) internal successors, (24436), 7015 states have internal predecessors, (24436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:33,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 24436 transitions. [2022-03-15 17:14:33,399 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 24436 transitions. Word has length 39 [2022-03-15 17:14:33,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:33,399 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 24436 transitions. [2022-03-15 17:14:33,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:33,399 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 24436 transitions. [2022-03-15 17:14:33,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:33,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:33,409 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] [2022-03-15 17:14:33,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-15 17:14:33,409 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:33,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:33,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1703485774, now seen corresponding path program 176 times [2022-03-15 17:14:33,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:33,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521091608] [2022-03-15 17:14:33,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:33,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:33,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:33,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521091608] [2022-03-15 17:14:33,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521091608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:33,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:33,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:33,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369074859] [2022-03-15 17:14:33,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:33,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:33,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:33,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:33,665 INFO L87 Difference]: Start difference. First operand 7016 states and 24436 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:35,563 INFO L93 Difference]: Finished difference Result 10732 states and 36773 transitions. [2022-03-15 17:14:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-15 17:14:35,563 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:35,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:35,587 INFO L225 Difference]: With dead ends: 10732 [2022-03-15 17:14:35,588 INFO L226 Difference]: Without dead ends: 10686 [2022-03-15 17:14:35,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 984 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=356, Invalid=3550, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 17:14:35,588 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 440 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 2963 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 3023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:35,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 2344 Invalid, 3023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2963 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:14:35,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2022-03-15 17:14:35,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 7020. [2022-03-15 17:14:35,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7020 states, 7019 states have (on average 3.4825473714204302) internal successors, (24444), 7019 states have internal predecessors, (24444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:35,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7020 states to 7020 states and 24444 transitions. [2022-03-15 17:14:35,708 INFO L78 Accepts]: Start accepts. Automaton has 7020 states and 24444 transitions. Word has length 39 [2022-03-15 17:14:35,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:35,708 INFO L470 AbstractCegarLoop]: Abstraction has 7020 states and 24444 transitions. [2022-03-15 17:14:35,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand 7020 states and 24444 transitions. [2022-03-15 17:14:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:35,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:35,719 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] [2022-03-15 17:14:35,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-15 17:14:35,719 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:35,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:35,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1456019612, now seen corresponding path program 177 times [2022-03-15 17:14:35,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:35,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316803178] [2022-03-15 17:14:35,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:35,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:35,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:35,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316803178] [2022-03-15 17:14:35,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316803178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:35,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:35,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:35,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617135122] [2022-03-15 17:14:35,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:35,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:35,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:35,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:35,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:35,946 INFO L87 Difference]: Start difference. First operand 7020 states and 24444 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:37,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:37,757 INFO L93 Difference]: Finished difference Result 9720 states and 33271 transitions. [2022-03-15 17:14:37,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-15 17:14:37,757 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:37,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:37,776 INFO L225 Difference]: With dead ends: 9720 [2022-03-15 17:14:37,776 INFO L226 Difference]: Without dead ends: 9667 [2022-03-15 17:14:37,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=343, Invalid=3197, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:14:37,777 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 426 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:37,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 2107 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:37,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2022-03-15 17:14:37,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 7010. [2022-03-15 17:14:37,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 7009 states have (on average 3.484805250392353) internal successors, (24425), 7009 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:37,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 24425 transitions. [2022-03-15 17:14:37,891 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 24425 transitions. Word has length 39 [2022-03-15 17:14:37,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:37,891 INFO L470 AbstractCegarLoop]: Abstraction has 7010 states and 24425 transitions. [2022-03-15 17:14:37,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:37,891 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 24425 transitions. [2022-03-15 17:14:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:37,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:37,901 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] [2022-03-15 17:14:37,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-15 17:14:37,902 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:37,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:37,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1380408388, now seen corresponding path program 178 times [2022-03-15 17:14:37,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:37,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742910915] [2022-03-15 17:14:37,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:37,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:38,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:38,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742910915] [2022-03-15 17:14:38,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742910915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:38,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:38,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:38,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706567568] [2022-03-15 17:14:38,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:38,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:38,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:38,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:38,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:38,125 INFO L87 Difference]: Start difference. First operand 7010 states and 24425 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:39,853 INFO L93 Difference]: Finished difference Result 9511 states and 32733 transitions. [2022-03-15 17:14:39,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:14:39,853 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:39,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:39,871 INFO L225 Difference]: With dead ends: 9511 [2022-03-15 17:14:39,871 INFO L226 Difference]: Without dead ends: 9444 [2022-03-15 17:14:39,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2022-03-15 17:14:39,872 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 414 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 2829 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 2884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:39,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 2097 Invalid, 2884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2829 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:39,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9444 states. [2022-03-15 17:14:39,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9444 to 7028. [2022-03-15 17:14:39,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7028 states, 7027 states have (on average 3.481855699444998) internal successors, (24467), 7027 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:39,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7028 states to 7028 states and 24467 transitions. [2022-03-15 17:14:39,985 INFO L78 Accepts]: Start accepts. Automaton has 7028 states and 24467 transitions. Word has length 39 [2022-03-15 17:14:39,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:39,985 INFO L470 AbstractCegarLoop]: Abstraction has 7028 states and 24467 transitions. [2022-03-15 17:14:39,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:39,985 INFO L276 IsEmpty]: Start isEmpty. Operand 7028 states and 24467 transitions. [2022-03-15 17:14:39,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:39,996 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:39,996 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] [2022-03-15 17:14:39,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-15 17:14:39,996 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:39,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:39,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1022338180, now seen corresponding path program 179 times [2022-03-15 17:14:39,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:39,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883035123] [2022-03-15 17:14:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:39,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:40,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:40,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883035123] [2022-03-15 17:14:40,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883035123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:40,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:40,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:40,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568908609] [2022-03-15 17:14:40,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:40,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:40,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:40,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:40,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:40,221 INFO L87 Difference]: Start difference. First operand 7028 states and 24467 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:41,760 INFO L93 Difference]: Finished difference Result 9477 states and 32620 transitions. [2022-03-15 17:14:41,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:14:41,760 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:41,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:41,778 INFO L225 Difference]: With dead ends: 9477 [2022-03-15 17:14:41,779 INFO L226 Difference]: Without dead ends: 9434 [2022-03-15 17:14:41,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=2489, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 17:14:41,779 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 396 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:41,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 1929 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9434 states. [2022-03-15 17:14:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9434 to 7046. [2022-03-15 17:14:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 3.4784953867991484) internal successors, (24506), 7045 states have internal predecessors, (24506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:41,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 24506 transitions. [2022-03-15 17:14:41,925 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 24506 transitions. Word has length 39 [2022-03-15 17:14:41,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:41,925 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 24506 transitions. [2022-03-15 17:14:41,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:41,925 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 24506 transitions. [2022-03-15 17:14:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:41,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:41,936 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] [2022-03-15 17:14:41,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-15 17:14:41,936 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:41,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:41,936 INFO L85 PathProgramCache]: Analyzing trace with hash -192807010, now seen corresponding path program 180 times [2022-03-15 17:14:41,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:41,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706054627] [2022-03-15 17:14:41,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:41,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:42,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:42,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706054627] [2022-03-15 17:14:42,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706054627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:42,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:42,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:42,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956580450] [2022-03-15 17:14:42,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:42,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:42,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:42,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:42,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:42,167 INFO L87 Difference]: Start difference. First operand 7046 states and 24506 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:43,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:43,719 INFO L93 Difference]: Finished difference Result 9411 states and 32458 transitions. [2022-03-15 17:14:43,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 17:14:43,719 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:43,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:43,738 INFO L225 Difference]: With dead ends: 9411 [2022-03-15 17:14:43,738 INFO L226 Difference]: Without dead ends: 9348 [2022-03-15 17:14:43,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=266, Invalid=2490, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 17:14:43,739 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 413 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:43,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1907 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:43,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2022-03-15 17:14:43,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 7028. [2022-03-15 17:14:43,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7028 states, 7027 states have (on average 3.4810018500071154) internal successors, (24461), 7027 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:43,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7028 states to 7028 states and 24461 transitions. [2022-03-15 17:14:43,852 INFO L78 Accepts]: Start accepts. Automaton has 7028 states and 24461 transitions. Word has length 39 [2022-03-15 17:14:43,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:43,852 INFO L470 AbstractCegarLoop]: Abstraction has 7028 states and 24461 transitions. [2022-03-15 17:14:43,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:43,852 INFO L276 IsEmpty]: Start isEmpty. Operand 7028 states and 24461 transitions. [2022-03-15 17:14:43,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:43,862 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:43,862 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] [2022-03-15 17:14:43,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-15 17:14:43,862 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:43,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:43,862 INFO L85 PathProgramCache]: Analyzing trace with hash 605966874, now seen corresponding path program 181 times [2022-03-15 17:14:43,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:43,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411312026] [2022-03-15 17:14:43,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:43,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:44,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:44,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:44,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411312026] [2022-03-15 17:14:44,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411312026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:44,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:44,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:44,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775252697] [2022-03-15 17:14:44,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:44,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:44,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:44,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:44,089 INFO L87 Difference]: Start difference. First operand 7028 states and 24461 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:46,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:46,498 INFO L93 Difference]: Finished difference Result 10516 states and 36140 transitions. [2022-03-15 17:14:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-15 17:14:46,498 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:46,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:46,519 INFO L225 Difference]: With dead ends: 10516 [2022-03-15 17:14:46,519 INFO L226 Difference]: Without dead ends: 10473 [2022-03-15 17:14:46,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1940 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=523, Invalid=5957, Unknown=0, NotChecked=0, Total=6480 [2022-03-15 17:14:46,520 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 532 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 3126 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 3126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:46,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [532 Valid, 2178 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 3126 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:14:46,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10473 states. [2022-03-15 17:14:46,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10473 to 7034. [2022-03-15 17:14:46,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 7033 states have (on average 3.4811602445613534) internal successors, (24483), 7033 states have internal predecessors, (24483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 24483 transitions. [2022-03-15 17:14:46,641 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 24483 transitions. Word has length 39 [2022-03-15 17:14:46,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:46,641 INFO L470 AbstractCegarLoop]: Abstraction has 7034 states and 24483 transitions. [2022-03-15 17:14:46,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:46,642 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 24483 transitions. [2022-03-15 17:14:46,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:46,652 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:46,652 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] [2022-03-15 17:14:46,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-15 17:14:46,652 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1174631428, now seen corresponding path program 182 times [2022-03-15 17:14:46,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:46,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2312435] [2022-03-15 17:14:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:46,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:46,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:46,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2312435] [2022-03-15 17:14:46,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2312435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:46,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:46,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:46,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385447312] [2022-03-15 17:14:46,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:46,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:46,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:46,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:46,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:46,876 INFO L87 Difference]: Start difference. First operand 7034 states and 24483 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:49,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:49,550 INFO L93 Difference]: Finished difference Result 11758 states and 40313 transitions. [2022-03-15 17:14:49,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-15 17:14:49,550 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:49,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:49,573 INFO L225 Difference]: With dead ends: 11758 [2022-03-15 17:14:49,573 INFO L226 Difference]: Without dead ends: 11706 [2022-03-15 17:14:49,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2400 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=565, Invalid=7091, Unknown=0, NotChecked=0, Total=7656 [2022-03-15 17:14:49,574 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 563 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 3492 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 3609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 3492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:49,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 2626 Invalid, 3609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 3492 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 17:14:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11706 states. [2022-03-15 17:14:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11706 to 7027. [2022-03-15 17:14:49,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 7026 states have (on average 3.480927981781953) internal successors, (24457), 7026 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:49,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 24457 transitions. [2022-03-15 17:14:49,707 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 24457 transitions. Word has length 39 [2022-03-15 17:14:49,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:49,708 INFO L470 AbstractCegarLoop]: Abstraction has 7027 states and 24457 transitions. [2022-03-15 17:14:49,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:49,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 24457 transitions. [2022-03-15 17:14:49,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:49,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:49,718 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] [2022-03-15 17:14:49,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-15 17:14:49,718 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:49,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:49,718 INFO L85 PathProgramCache]: Analyzing trace with hash -931452356, now seen corresponding path program 183 times [2022-03-15 17:14:49,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:49,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014394909] [2022-03-15 17:14:49,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:49,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:49,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:49,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:49,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014394909] [2022-03-15 17:14:49,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014394909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:49,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:49,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:49,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522555776] [2022-03-15 17:14:49,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:49,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:49,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:49,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:49,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:49,944 INFO L87 Difference]: Start difference. First operand 7027 states and 24457 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:51,529 INFO L93 Difference]: Finished difference Result 9525 states and 32721 transitions. [2022-03-15 17:14:51,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 17:14:51,529 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:51,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:51,548 INFO L225 Difference]: With dead ends: 9525 [2022-03-15 17:14:51,548 INFO L226 Difference]: Without dead ends: 9482 [2022-03-15 17:14:51,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=277, Invalid=2585, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:14:51,549 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 407 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:51,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1906 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:51,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9482 states. [2022-03-15 17:14:51,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9482 to 7036. [2022-03-15 17:14:51,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7035 states have (on average 3.4794598436389483) internal successors, (24478), 7035 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:51,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 24478 transitions. [2022-03-15 17:14:51,662 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 24478 transitions. Word has length 39 [2022-03-15 17:14:51,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:51,662 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 24478 transitions. [2022-03-15 17:14:51,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 24478 transitions. [2022-03-15 17:14:51,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:51,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:51,673 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] [2022-03-15 17:14:51,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-15 17:14:51,673 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:51,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash 818654780, now seen corresponding path program 184 times [2022-03-15 17:14:51,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:51,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013568395] [2022-03-15 17:14:51,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:51,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:51,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:51,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013568395] [2022-03-15 17:14:51,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013568395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:51,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:51,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:51,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766629959] [2022-03-15 17:14:51,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:51,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:51,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:51,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:51,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:51,897 INFO L87 Difference]: Start difference. First operand 7036 states and 24478 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:53,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:53,527 INFO L93 Difference]: Finished difference Result 9473 states and 32596 transitions. [2022-03-15 17:14:53,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 17:14:53,527 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:53,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:53,547 INFO L225 Difference]: With dead ends: 9473 [2022-03-15 17:14:53,547 INFO L226 Difference]: Without dead ends: 9422 [2022-03-15 17:14:53,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=284, Invalid=2686, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 17:14:53,547 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 412 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 2657 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:53,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1913 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2657 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:53,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9422 states. [2022-03-15 17:14:53,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9422 to 7030. [2022-03-15 17:14:53,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7030 states, 7029 states have (on average 3.480153649167734) internal successors, (24462), 7029 states have internal predecessors, (24462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:53,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7030 states to 7030 states and 24462 transitions. [2022-03-15 17:14:53,698 INFO L78 Accepts]: Start accepts. Automaton has 7030 states and 24462 transitions. Word has length 39 [2022-03-15 17:14:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:53,698 INFO L470 AbstractCegarLoop]: Abstraction has 7030 states and 24462 transitions. [2022-03-15 17:14:53,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 7030 states and 24462 transitions. [2022-03-15 17:14:53,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:53,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:53,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:14:53,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-15 17:14:53,713 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:53,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1435873182, now seen corresponding path program 185 times [2022-03-15 17:14:53,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:53,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791403732] [2022-03-15 17:14:53,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:53,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:53,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:53,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791403732] [2022-03-15 17:14:53,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791403732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:53,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:53,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:53,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320268786] [2022-03-15 17:14:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:53,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:53,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:53,990 INFO L87 Difference]: Start difference. First operand 7030 states and 24462 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:55,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:55,823 INFO L93 Difference]: Finished difference Result 10649 states and 36563 transitions. [2022-03-15 17:14:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 17:14:55,823 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:55,844 INFO L225 Difference]: With dead ends: 10649 [2022-03-15 17:14:55,844 INFO L226 Difference]: Without dead ends: 10603 [2022-03-15 17:14:55,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=305, Invalid=3117, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:14:55,845 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 422 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 3086 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:55,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2329 Invalid, 3135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3086 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:14:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2022-03-15 17:14:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 7037. [2022-03-15 17:14:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 7036 states have (on average 3.4788231949971573) internal successors, (24477), 7036 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 24477 transitions. [2022-03-15 17:14:56,003 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 24477 transitions. Word has length 39 [2022-03-15 17:14:56,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:56,004 INFO L470 AbstractCegarLoop]: Abstraction has 7037 states and 24477 transitions. [2022-03-15 17:14:56,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 24477 transitions. [2022-03-15 17:14:56,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:56,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:56,015 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] [2022-03-15 17:14:56,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-15 17:14:56,015 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:56,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:56,015 INFO L85 PathProgramCache]: Analyzing trace with hash 805692, now seen corresponding path program 186 times [2022-03-15 17:14:56,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:56,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22179852] [2022-03-15 17:14:56,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:56,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:56,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:56,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22179852] [2022-03-15 17:14:56,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22179852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:56,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:56,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:56,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821829155] [2022-03-15 17:14:56,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:56,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:56,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:56,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:56,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:56,244 INFO L87 Difference]: Start difference. First operand 7037 states and 24477 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:57,817 INFO L93 Difference]: Finished difference Result 9405 states and 32431 transitions. [2022-03-15 17:14:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:14:57,818 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:57,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:57,836 INFO L225 Difference]: With dead ends: 9405 [2022-03-15 17:14:57,836 INFO L226 Difference]: Without dead ends: 9338 [2022-03-15 17:14:57,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=275, Invalid=2587, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:14:57,837 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 406 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:57,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 1907 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9338 states. [2022-03-15 17:14:57,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9338 to 7021. [2022-03-15 17:14:57,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7021 states, 7020 states have (on average 3.4821937321937324) internal successors, (24445), 7020 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7021 states to 7021 states and 24445 transitions. [2022-03-15 17:14:57,945 INFO L78 Accepts]: Start accepts. Automaton has 7021 states and 24445 transitions. Word has length 39 [2022-03-15 17:14:57,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:57,945 INFO L470 AbstractCegarLoop]: Abstraction has 7021 states and 24445 transitions. [2022-03-15 17:14:57,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:57,945 INFO L276 IsEmpty]: Start isEmpty. Operand 7021 states and 24445 transitions. [2022-03-15 17:14:57,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:57,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:57,955 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] [2022-03-15 17:14:57,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-15 17:14:57,956 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:57,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:57,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2008602846, now seen corresponding path program 187 times [2022-03-15 17:14:57,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:57,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598194482] [2022-03-15 17:14:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:57,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:14:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:14:58,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:14:58,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598194482] [2022-03-15 17:14:58,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598194482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:14:58,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:14:58,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:14:58,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084958028] [2022-03-15 17:14:58,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:14:58,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:14:58,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:14:58,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:14:58,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:14:58,206 INFO L87 Difference]: Start difference. First operand 7021 states and 24445 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:59,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:14:59,799 INFO L93 Difference]: Finished difference Result 9501 states and 32677 transitions. [2022-03-15 17:14:59,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 17:14:59,799 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:14:59,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:14:59,818 INFO L225 Difference]: With dead ends: 9501 [2022-03-15 17:14:59,819 INFO L226 Difference]: Without dead ends: 9438 [2022-03-15 17:14:59,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=2583, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:14:59,819 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 387 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:14:59,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1934 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:14:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2022-03-15 17:14:59,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 7025. [2022-03-15 17:14:59,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.481634396355353) internal successors, (24455), 7024 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:59,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24455 transitions. [2022-03-15 17:14:59,935 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24455 transitions. Word has length 39 [2022-03-15 17:14:59,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:14:59,936 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24455 transitions. [2022-03-15 17:14:59,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:14:59,936 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24455 transitions. [2022-03-15 17:14:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:14:59,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:14:59,946 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] [2022-03-15 17:14:59,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-15 17:14:59,946 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:14:59,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:14:59,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1763110748, now seen corresponding path program 188 times [2022-03-15 17:14:59,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:14:59,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125542279] [2022-03-15 17:14:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:14:59,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:14:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:00,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:00,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:00,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125542279] [2022-03-15 17:15:00,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125542279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:00,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:00,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:00,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45124102] [2022-03-15 17:15:00,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:00,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:00,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:00,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:00,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:00,171 INFO L87 Difference]: Start difference. First operand 7025 states and 24455 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:01,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:01,744 INFO L93 Difference]: Finished difference Result 9554 states and 32803 transitions. [2022-03-15 17:15:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 17:15:01,744 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:01,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:01,763 INFO L225 Difference]: With dead ends: 9554 [2022-03-15 17:15:01,763 INFO L226 Difference]: Without dead ends: 9511 [2022-03-15 17:15:01,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2490, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 17:15:01,763 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 402 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 2680 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:01,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 1930 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2680 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9511 states. [2022-03-15 17:15:01,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9511 to 7043. [2022-03-15 17:15:01,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 7042 states have (on average 3.478273217835842) internal successors, (24494), 7042 states have internal predecessors, (24494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 24494 transitions. [2022-03-15 17:15:01,874 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 24494 transitions. Word has length 39 [2022-03-15 17:15:01,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:01,874 INFO L470 AbstractCegarLoop]: Abstraction has 7043 states and 24494 transitions. [2022-03-15 17:15:01,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:01,874 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 24494 transitions. [2022-03-15 17:15:01,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:01,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:01,884 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] [2022-03-15 17:15:01,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-15 17:15:01,884 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:01,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1702325378, now seen corresponding path program 189 times [2022-03-15 17:15:01,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:01,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374762054] [2022-03-15 17:15:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:01,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:02,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:02,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:02,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374762054] [2022-03-15 17:15:02,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374762054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:02,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:02,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:02,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121159] [2022-03-15 17:15:02,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:02,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:02,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:02,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:02,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:02,110 INFO L87 Difference]: Start difference. First operand 7043 states and 24494 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:03,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:03,639 INFO L93 Difference]: Finished difference Result 9423 states and 32487 transitions. [2022-03-15 17:15:03,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 17:15:03,639 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:03,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:03,663 INFO L225 Difference]: With dead ends: 9423 [2022-03-15 17:15:03,663 INFO L226 Difference]: Without dead ends: 9360 [2022-03-15 17:15:03,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:15:03,664 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 390 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 2690 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:03,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1952 Invalid, 2733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2690 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9360 states. [2022-03-15 17:15:03,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9360 to 7025. [2022-03-15 17:15:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.4810649202733486) internal successors, (24451), 7024 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:03,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24451 transitions. [2022-03-15 17:15:03,820 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24451 transitions. Word has length 39 [2022-03-15 17:15:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:03,820 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24451 transitions. [2022-03-15 17:15:03,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24451 transitions. [2022-03-15 17:15:03,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:03,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:03,831 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] [2022-03-15 17:15:03,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-15 17:15:03,831 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:03,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:03,831 INFO L85 PathProgramCache]: Analyzing trace with hash 579406110, now seen corresponding path program 190 times [2022-03-15 17:15:03,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:03,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268654811] [2022-03-15 17:15:03,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:03,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:04,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:04,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:04,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268654811] [2022-03-15 17:15:04,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268654811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:04,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:04,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:04,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105825112] [2022-03-15 17:15:04,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:04,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:04,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:04,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:04,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:04,057 INFO L87 Difference]: Start difference. First operand 7025 states and 24451 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:05,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:05,677 INFO L93 Difference]: Finished difference Result 9507 states and 32702 transitions. [2022-03-15 17:15:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 17:15:05,678 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:05,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:05,697 INFO L225 Difference]: With dead ends: 9507 [2022-03-15 17:15:05,697 INFO L226 Difference]: Without dead ends: 9452 [2022-03-15 17:15:05,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=2887, Unknown=0, NotChecked=0, Total=3192 [2022-03-15 17:15:05,698 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 407 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:05,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1926 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:05,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2022-03-15 17:15:05,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 7027. [2022-03-15 17:15:05,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 7026 states have (on average 3.4807856532877883) internal successors, (24456), 7026 states have internal predecessors, (24456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 24456 transitions. [2022-03-15 17:15:05,815 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 24456 transitions. Word has length 39 [2022-03-15 17:15:05,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:05,815 INFO L470 AbstractCegarLoop]: Abstraction has 7027 states and 24456 transitions. [2022-03-15 17:15:05,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:05,815 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 24456 transitions. [2022-03-15 17:15:05,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:05,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:05,825 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] [2022-03-15 17:15:05,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-15 17:15:05,825 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:05,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:05,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1916464124, now seen corresponding path program 191 times [2022-03-15 17:15:05,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:05,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506670279] [2022-03-15 17:15:05,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:05,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:06,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:06,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506670279] [2022-03-15 17:15:06,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506670279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:06,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:06,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:06,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761155491] [2022-03-15 17:15:06,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:06,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:06,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:06,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:06,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:06,050 INFO L87 Difference]: Start difference. First operand 7027 states and 24456 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:07,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:07,630 INFO L93 Difference]: Finished difference Result 9483 states and 32632 transitions. [2022-03-15 17:15:07,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 17:15:07,630 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:07,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:07,649 INFO L225 Difference]: With dead ends: 9483 [2022-03-15 17:15:07,649 INFO L226 Difference]: Without dead ends: 9440 [2022-03-15 17:15:07,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=281, Invalid=2689, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 17:15:07,650 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 397 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 2636 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 2681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:07,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1910 Invalid, 2681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2636 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:07,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9440 states. [2022-03-15 17:15:07,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9440 to 7033. [2022-03-15 17:15:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7033 states, 7032 states have (on average 3.4796643913538112) internal successors, (24469), 7032 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7033 states to 7033 states and 24469 transitions. [2022-03-15 17:15:07,764 INFO L78 Accepts]: Start accepts. Automaton has 7033 states and 24469 transitions. Word has length 39 [2022-03-15 17:15:07,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:07,764 INFO L470 AbstractCegarLoop]: Abstraction has 7033 states and 24469 transitions. [2022-03-15 17:15:07,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:07,765 INFO L276 IsEmpty]: Start isEmpty. Operand 7033 states and 24469 transitions. [2022-03-15 17:15:07,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:07,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:07,775 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] [2022-03-15 17:15:07,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-15 17:15:07,775 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:07,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:07,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1645044574, now seen corresponding path program 192 times [2022-03-15 17:15:07,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:07,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585118531] [2022-03-15 17:15:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:07,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:08,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:08,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:08,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585118531] [2022-03-15 17:15:08,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585118531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:08,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:08,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:08,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641965663] [2022-03-15 17:15:08,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:08,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:08,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:08,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:08,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:08,003 INFO L87 Difference]: Start difference. First operand 7033 states and 24469 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:09,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:09,628 INFO L93 Difference]: Finished difference Result 9417 states and 32470 transitions. [2022-03-15 17:15:09,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 17:15:09,629 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:09,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:09,647 INFO L225 Difference]: With dead ends: 9417 [2022-03-15 17:15:09,648 INFO L226 Difference]: Without dead ends: 9356 [2022-03-15 17:15:09,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=267, Invalid=2595, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:15:09,648 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 387 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:09,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1937 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2692 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:09,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9356 states. [2022-03-15 17:15:09,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9356 to 7021. [2022-03-15 17:15:09,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7021 states, 7020 states have (on average 3.481908831908832) internal successors, (24443), 7020 states have internal predecessors, (24443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7021 states to 7021 states and 24443 transitions. [2022-03-15 17:15:09,762 INFO L78 Accepts]: Start accepts. Automaton has 7021 states and 24443 transitions. Word has length 39 [2022-03-15 17:15:09,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:09,762 INFO L470 AbstractCegarLoop]: Abstraction has 7021 states and 24443 transitions. [2022-03-15 17:15:09,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 7021 states and 24443 transitions. [2022-03-15 17:15:09,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:09,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:09,774 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] [2022-03-15 17:15:09,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-15 17:15:09,774 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:09,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:09,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1546889360, now seen corresponding path program 193 times [2022-03-15 17:15:09,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:09,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154473378] [2022-03-15 17:15:09,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:09,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:10,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:10,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154473378] [2022-03-15 17:15:10,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154473378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:10,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:10,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:10,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933235765] [2022-03-15 17:15:10,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:10,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:10,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:10,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:10,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:10,000 INFO L87 Difference]: Start difference. First operand 7021 states and 24443 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:11,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:11,807 INFO L93 Difference]: Finished difference Result 9607 states and 32929 transitions. [2022-03-15 17:15:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-15 17:15:11,807 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:11,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:11,826 INFO L225 Difference]: With dead ends: 9607 [2022-03-15 17:15:11,826 INFO L226 Difference]: Without dead ends: 9552 [2022-03-15 17:15:11,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=373, Invalid=3533, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 17:15:11,827 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 419 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:11,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 1936 Invalid, 2796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2721 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:11,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9552 states. [2022-03-15 17:15:11,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9552 to 7026. [2022-03-15 17:15:11,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 7025 states have (on average 3.4811387900355872) internal successors, (24455), 7025 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:11,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 24455 transitions. [2022-03-15 17:15:11,971 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 24455 transitions. Word has length 39 [2022-03-15 17:15:11,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:11,971 INFO L470 AbstractCegarLoop]: Abstraction has 7026 states and 24455 transitions. [2022-03-15 17:15:11,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:11,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 24455 transitions. [2022-03-15 17:15:11,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:11,981 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:11,982 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] [2022-03-15 17:15:11,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-15 17:15:11,982 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:11,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:11,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1575425714, now seen corresponding path program 194 times [2022-03-15 17:15:11,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:11,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393502650] [2022-03-15 17:15:11,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:11,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:12,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:12,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393502650] [2022-03-15 17:15:12,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393502650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:12,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:12,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:12,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383868599] [2022-03-15 17:15:12,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:12,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:12,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:12,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:12,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:12,204 INFO L87 Difference]: Start difference. First operand 7026 states and 24455 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:14,202 INFO L93 Difference]: Finished difference Result 10787 states and 36895 transitions. [2022-03-15 17:15:14,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-15 17:15:14,203 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:14,224 INFO L225 Difference]: With dead ends: 10787 [2022-03-15 17:15:14,224 INFO L226 Difference]: Without dead ends: 10741 [2022-03-15 17:15:14,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=370, Invalid=3790, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 17:15:14,225 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 452 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 3087 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:14,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 2359 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3087 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:15:14,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10741 states. [2022-03-15 17:15:14,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10741 to 7032. [2022-03-15 17:15:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7032 states, 7031 states have (on average 3.4803015218318873) internal successors, (24470), 7031 states have internal predecessors, (24470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:14,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7032 states to 7032 states and 24470 transitions. [2022-03-15 17:15:14,393 INFO L78 Accepts]: Start accepts. Automaton has 7032 states and 24470 transitions. Word has length 39 [2022-03-15 17:15:14,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:14,393 INFO L470 AbstractCegarLoop]: Abstraction has 7032 states and 24470 transitions. [2022-03-15 17:15:14,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:14,394 INFO L276 IsEmpty]: Start isEmpty. Operand 7032 states and 24470 transitions. [2022-03-15 17:15:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:14,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:14,403 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] [2022-03-15 17:15:14,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-15 17:15:14,404 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:14,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:14,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1822891876, now seen corresponding path program 195 times [2022-03-15 17:15:14,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:14,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041722603] [2022-03-15 17:15:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:14,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:14,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:14,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041722603] [2022-03-15 17:15:14,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041722603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:14,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:14,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:14,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696114380] [2022-03-15 17:15:14,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:14,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:14,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:14,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:14,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:14,627 INFO L87 Difference]: Start difference. First operand 7032 states and 24470 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:16,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:16,402 INFO L93 Difference]: Finished difference Result 9709 states and 33233 transitions. [2022-03-15 17:15:16,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-15 17:15:16,403 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:16,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:16,422 INFO L225 Difference]: With dead ends: 9709 [2022-03-15 17:15:16,422 INFO L226 Difference]: Without dead ends: 9664 [2022-03-15 17:15:16,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=335, Invalid=3205, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:15:16,423 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 414 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 2799 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:16,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 2084 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2799 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:16,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9664 states. [2022-03-15 17:15:16,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9664 to 7030. [2022-03-15 17:15:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7030 states, 7029 states have (on average 3.48072272015934) internal successors, (24466), 7029 states have internal predecessors, (24466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7030 states to 7030 states and 24466 transitions. [2022-03-15 17:15:16,538 INFO L78 Accepts]: Start accepts. Automaton has 7030 states and 24466 transitions. Word has length 39 [2022-03-15 17:15:16,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:16,538 INFO L470 AbstractCegarLoop]: Abstraction has 7030 states and 24466 transitions. [2022-03-15 17:15:16,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand 7030 states and 24466 transitions. [2022-03-15 17:15:16,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:16,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:16,549 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] [2022-03-15 17:15:16,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-15 17:15:16,549 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:16,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:16,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1643170594, now seen corresponding path program 196 times [2022-03-15 17:15:16,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:16,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654453030] [2022-03-15 17:15:16,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:16,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:16,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:16,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654453030] [2022-03-15 17:15:16,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654453030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:16,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:16,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:16,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835374775] [2022-03-15 17:15:16,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:16,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:16,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:16,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:16,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:16,797 INFO L87 Difference]: Start difference. First operand 7030 states and 24466 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:18,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:18,503 INFO L93 Difference]: Finished difference Result 9613 states and 32941 transitions. [2022-03-15 17:15:18,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-15 17:15:18,503 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:18,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:18,522 INFO L225 Difference]: With dead ends: 9613 [2022-03-15 17:15:18,522 INFO L226 Difference]: Without dead ends: 9570 [2022-03-15 17:15:18,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=332, Invalid=3208, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:15:18,523 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 427 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 2728 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:18,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1933 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2728 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9570 states. [2022-03-15 17:15:18,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9570 to 7039. [2022-03-15 17:15:18,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 3.4792554703040635) internal successors, (24487), 7038 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:18,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 24487 transitions. [2022-03-15 17:15:18,634 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 24487 transitions. Word has length 39 [2022-03-15 17:15:18,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:18,634 INFO L470 AbstractCegarLoop]: Abstraction has 7039 states and 24487 transitions. [2022-03-15 17:15:18,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 24487 transitions. [2022-03-15 17:15:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:18,645 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:18,645 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] [2022-03-15 17:15:18,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-15 17:15:18,645 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:18,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash 106936542, now seen corresponding path program 197 times [2022-03-15 17:15:18,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:18,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091391898] [2022-03-15 17:15:18,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:18,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:18,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:18,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091391898] [2022-03-15 17:15:18,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091391898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:18,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:18,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:18,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387665639] [2022-03-15 17:15:18,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:18,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:18,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:18,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:18,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:18,866 INFO L87 Difference]: Start difference. First operand 7039 states and 24487 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:20,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:20,531 INFO L93 Difference]: Finished difference Result 9563 states and 32817 transitions. [2022-03-15 17:15:20,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 17:15:20,531 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:20,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:20,550 INFO L225 Difference]: With dead ends: 9563 [2022-03-15 17:15:20,550 INFO L226 Difference]: Without dead ends: 9512 [2022-03-15 17:15:20,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=307, Invalid=2999, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 17:15:20,550 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 414 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:20,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 1942 Invalid, 2793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:20,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9512 states. [2022-03-15 17:15:20,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9512 to 7039. [2022-03-15 17:15:20,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 3.478829212844558) internal successors, (24484), 7038 states have internal predecessors, (24484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 24484 transitions. [2022-03-15 17:15:20,658 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 24484 transitions. Word has length 39 [2022-03-15 17:15:20,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:20,658 INFO L470 AbstractCegarLoop]: Abstraction has 7039 states and 24484 transitions. [2022-03-15 17:15:20,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:20,658 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 24484 transitions. [2022-03-15 17:15:20,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:20,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:20,669 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] [2022-03-15 17:15:20,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-15 17:15:20,669 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:20,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:20,670 INFO L85 PathProgramCache]: Analyzing trace with hash 724154944, now seen corresponding path program 198 times [2022-03-15 17:15:20,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:20,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6723515] [2022-03-15 17:15:20,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:20,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:20,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:20,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6723515] [2022-03-15 17:15:20,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6723515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:20,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:20,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:20,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428288033] [2022-03-15 17:15:20,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:20,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:20,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:20,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:20,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:20,888 INFO L87 Difference]: Start difference. First operand 7039 states and 24484 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:22,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:22,838 INFO L93 Difference]: Finished difference Result 10790 states and 36899 transitions. [2022-03-15 17:15:22,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 17:15:22,838 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:22,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:22,858 INFO L225 Difference]: With dead ends: 10790 [2022-03-15 17:15:22,858 INFO L226 Difference]: Without dead ends: 10744 [2022-03-15 17:15:22,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=342, Invalid=3564, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 17:15:22,859 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 441 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 3134 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 3194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:22,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 2358 Invalid, 3194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3134 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:15:22,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10744 states. [2022-03-15 17:15:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10744 to 7046. [2022-03-15 17:15:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 3.4775017743080197) internal successors, (24499), 7045 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 24499 transitions. [2022-03-15 17:15:22,979 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 24499 transitions. Word has length 39 [2022-03-15 17:15:22,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:22,979 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 24499 transitions. [2022-03-15 17:15:22,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 24499 transitions. [2022-03-15 17:15:22,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:22,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:22,990 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] [2022-03-15 17:15:22,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-15 17:15:22,990 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:22,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:22,990 INFO L85 PathProgramCache]: Analyzing trace with hash -710912546, now seen corresponding path program 199 times [2022-03-15 17:15:22,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:22,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725084536] [2022-03-15 17:15:22,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:22,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:23,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:23,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:23,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725084536] [2022-03-15 17:15:23,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725084536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:23,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:23,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:23,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940347972] [2022-03-15 17:15:23,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:23,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:23,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:23,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:23,209 INFO L87 Difference]: Start difference. First operand 7046 states and 24499 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:24,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:24,844 INFO L93 Difference]: Finished difference Result 9549 states and 32770 transitions. [2022-03-15 17:15:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 17:15:24,844 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:24,863 INFO L225 Difference]: With dead ends: 9549 [2022-03-15 17:15:24,863 INFO L226 Difference]: Without dead ends: 9494 [2022-03-15 17:15:24,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=2895, Unknown=0, NotChecked=0, Total=3192 [2022-03-15 17:15:24,864 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 421 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 2766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:24,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1924 Invalid, 2766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:24,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-03-15 17:15:24,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 7043. [2022-03-15 17:15:24,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 7042 states have (on average 3.478131212723658) internal successors, (24493), 7042 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:25,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 24493 transitions. [2022-03-15 17:15:25,009 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 24493 transitions. Word has length 39 [2022-03-15 17:15:25,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:25,009 INFO L470 AbstractCegarLoop]: Abstraction has 7043 states and 24493 transitions. [2022-03-15 17:15:25,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:25,009 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 24493 transitions. [2022-03-15 17:15:25,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:25,020 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:25,020 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] [2022-03-15 17:15:25,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-15 17:15:25,020 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:25,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:25,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1993615664, now seen corresponding path program 200 times [2022-03-15 17:15:25,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:25,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43715413] [2022-03-15 17:15:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:25,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:25,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:25,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43715413] [2022-03-15 17:15:25,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43715413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:25,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:25,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:25,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944276510] [2022-03-15 17:15:25,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:25,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:25,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:25,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:25,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:25,239 INFO L87 Difference]: Start difference. First operand 7043 states and 24493 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:26,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:26,880 INFO L93 Difference]: Finished difference Result 9533 states and 32730 transitions. [2022-03-15 17:15:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 17:15:26,881 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:26,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:26,899 INFO L225 Difference]: With dead ends: 9533 [2022-03-15 17:15:26,900 INFO L226 Difference]: Without dead ends: 9476 [2022-03-15 17:15:26,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 17:15:26,900 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 416 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 2746 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:26,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 1945 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2746 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:26,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9476 states. [2022-03-15 17:15:26,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9476 to 7035. [2022-03-15 17:15:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7035 states, 7034 states have (on average 3.4793858402047197) internal successors, (24474), 7034 states have internal predecessors, (24474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:27,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7035 states to 7035 states and 24474 transitions. [2022-03-15 17:15:27,074 INFO L78 Accepts]: Start accepts. Automaton has 7035 states and 24474 transitions. Word has length 39 [2022-03-15 17:15:27,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:27,074 INFO L470 AbstractCegarLoop]: Abstraction has 7035 states and 24474 transitions. [2022-03-15 17:15:27,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:27,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7035 states and 24474 transitions. [2022-03-15 17:15:27,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:27,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:27,085 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] [2022-03-15 17:15:27,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-15 17:15:27,085 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:27,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:27,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1252884038, now seen corresponding path program 201 times [2022-03-15 17:15:27,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:27,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725331085] [2022-03-15 17:15:27,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:27,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:27,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:27,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:27,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725331085] [2022-03-15 17:15:27,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725331085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:27,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:27,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:27,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280832799] [2022-03-15 17:15:27,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:27,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:27,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:27,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:27,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:27,312 INFO L87 Difference]: Start difference. First operand 7035 states and 24474 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:29,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:29,094 INFO L93 Difference]: Finished difference Result 9876 states and 33881 transitions. [2022-03-15 17:15:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-15 17:15:29,094 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:29,113 INFO L225 Difference]: With dead ends: 9876 [2022-03-15 17:15:29,113 INFO L226 Difference]: Without dead ends: 9833 [2022-03-15 17:15:29,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=322, Invalid=3218, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:15:29,114 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 425 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:29,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 2243 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2935 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:15:29,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2022-03-15 17:15:29,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 7031. [2022-03-15 17:15:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7031 states, 7030 states have (on average 3.4799431009957327) internal successors, (24464), 7030 states have internal predecessors, (24464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:29,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7031 states to 7031 states and 24464 transitions. [2022-03-15 17:15:29,226 INFO L78 Accepts]: Start accepts. Automaton has 7031 states and 24464 transitions. Word has length 39 [2022-03-15 17:15:29,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:29,226 INFO L470 AbstractCegarLoop]: Abstraction has 7031 states and 24464 transitions. [2022-03-15 17:15:29,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 7031 states and 24464 transitions. [2022-03-15 17:15:29,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:29,236 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:29,236 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] [2022-03-15 17:15:29,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-15 17:15:29,236 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:29,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash 583873452, now seen corresponding path program 202 times [2022-03-15 17:15:29,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:29,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115206041] [2022-03-15 17:15:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:29,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:29,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:29,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115206041] [2022-03-15 17:15:29,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115206041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:29,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:29,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:29,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546085324] [2022-03-15 17:15:29,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:29,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:29,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:29,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:29,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:29,503 INFO L87 Difference]: Start difference. First operand 7031 states and 24464 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:31,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:31,181 INFO L93 Difference]: Finished difference Result 9712 states and 33413 transitions. [2022-03-15 17:15:31,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 17:15:31,181 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:31,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:31,202 INFO L225 Difference]: With dead ends: 9712 [2022-03-15 17:15:31,202 INFO L226 Difference]: Without dead ends: 9649 [2022-03-15 17:15:31,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=304, Invalid=3002, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 17:15:31,202 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 416 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 2873 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:31,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 2095 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2873 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:31,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-03-15 17:15:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 7019. [2022-03-15 17:15:31,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.482331148475349) internal successors, (24439), 7018 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:31,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24439 transitions. [2022-03-15 17:15:31,328 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24439 transitions. Word has length 39 [2022-03-15 17:15:31,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:31,328 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24439 transitions. [2022-03-15 17:15:31,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:31,328 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24439 transitions. [2022-03-15 17:15:31,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:31,339 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:31,339 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] [2022-03-15 17:15:31,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-15 17:15:31,339 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:31,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:31,339 INFO L85 PathProgramCache]: Analyzing trace with hash -109091684, now seen corresponding path program 203 times [2022-03-15 17:15:31,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:31,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023463884] [2022-03-15 17:15:31,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:31,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:31,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:31,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023463884] [2022-03-15 17:15:31,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023463884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:31,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:31,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:31,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101503434] [2022-03-15 17:15:31,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:31,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:31,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:31,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:31,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:31,565 INFO L87 Difference]: Start difference. First operand 7019 states and 24439 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:32,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:32,955 INFO L93 Difference]: Finished difference Result 9263 states and 32060 transitions. [2022-03-15 17:15:32,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 17:15:32,955 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:32,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:32,975 INFO L225 Difference]: With dead ends: 9263 [2022-03-15 17:15:32,975 INFO L226 Difference]: Without dead ends: 9200 [2022-03-15 17:15:32,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 17:15:32,975 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 350 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:32,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1912 Invalid, 2536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:32,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9200 states. [2022-03-15 17:15:33,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9200 to 7051. [2022-03-15 17:15:33,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7051 states, 7050 states have (on average 3.4784397163120566) internal successors, (24523), 7050 states have internal predecessors, (24523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:33,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 24523 transitions. [2022-03-15 17:15:33,099 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 24523 transitions. Word has length 39 [2022-03-15 17:15:33,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:33,099 INFO L470 AbstractCegarLoop]: Abstraction has 7051 states and 24523 transitions. [2022-03-15 17:15:33,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:33,099 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 24523 transitions. [2022-03-15 17:15:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:33,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:33,110 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] [2022-03-15 17:15:33,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-15 17:15:33,111 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:33,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash -638992132, now seen corresponding path program 204 times [2022-03-15 17:15:33,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:33,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74976791] [2022-03-15 17:15:33,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:33,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:33,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:33,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:33,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74976791] [2022-03-15 17:15:33,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74976791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:33,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:33,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:33,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395783819] [2022-03-15 17:15:33,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:33,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:33,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:33,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:33,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:33,364 INFO L87 Difference]: Start difference. First operand 7051 states and 24523 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:34,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:34,724 INFO L93 Difference]: Finished difference Result 9246 states and 32034 transitions. [2022-03-15 17:15:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 17:15:34,724 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:34,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:34,743 INFO L225 Difference]: With dead ends: 9246 [2022-03-15 17:15:34,743 INFO L226 Difference]: Without dead ends: 9123 [2022-03-15 17:15:34,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=228, Invalid=2124, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 17:15:34,744 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 341 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:34,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 1950 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:34,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9123 states. [2022-03-15 17:15:34,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9123 to 7019. [2022-03-15 17:15:34,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.480051296665717) internal successors, (24423), 7018 states have internal predecessors, (24423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:34,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24423 transitions. [2022-03-15 17:15:34,881 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24423 transitions. Word has length 39 [2022-03-15 17:15:34,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:34,881 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24423 transitions. [2022-03-15 17:15:34,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:34,881 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24423 transitions. [2022-03-15 17:15:34,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:34,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:34,892 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] [2022-03-15 17:15:34,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-15 17:15:34,892 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:34,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:34,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1141454530, now seen corresponding path program 205 times [2022-03-15 17:15:34,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:34,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904823318] [2022-03-15 17:15:34,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:34,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:35,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:35,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:35,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904823318] [2022-03-15 17:15:35,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904823318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:35,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:35,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:35,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222341625] [2022-03-15 17:15:35,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:35,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:35,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:35,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:35,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:35,117 INFO L87 Difference]: Start difference. First operand 7019 states and 24423 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:36,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:36,483 INFO L93 Difference]: Finished difference Result 9306 states and 32141 transitions. [2022-03-15 17:15:36,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:15:36,484 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:36,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:36,502 INFO L225 Difference]: With dead ends: 9306 [2022-03-15 17:15:36,502 INFO L226 Difference]: Without dead ends: 9243 [2022-03-15 17:15:36,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=2124, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 17:15:36,503 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 361 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:36,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1910 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9243 states. [2022-03-15 17:15:36,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9243 to 7019. [2022-03-15 17:15:36,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.479481333713309) internal successors, (24419), 7018 states have internal predecessors, (24419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:36,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24419 transitions. [2022-03-15 17:15:36,612 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24419 transitions. Word has length 39 [2022-03-15 17:15:36,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:36,612 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24419 transitions. [2022-03-15 17:15:36,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:36,612 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24419 transitions. [2022-03-15 17:15:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:36,648 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:36,648 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] [2022-03-15 17:15:36,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-15 17:15:36,648 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:36,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:36,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1386946628, now seen corresponding path program 206 times [2022-03-15 17:15:36,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:36,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154154733] [2022-03-15 17:15:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:36,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:36,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:36,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154154733] [2022-03-15 17:15:36,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154154733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:36,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:36,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:36,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780643892] [2022-03-15 17:15:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:36,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:36,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:36,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:36,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:36,871 INFO L87 Difference]: Start difference. First operand 7019 states and 24419 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:38,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:38,199 INFO L93 Difference]: Finished difference Result 9282 states and 32081 transitions. [2022-03-15 17:15:38,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 17:15:38,199 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:38,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:38,217 INFO L225 Difference]: With dead ends: 9282 [2022-03-15 17:15:38,217 INFO L226 Difference]: Without dead ends: 9239 [2022-03-15 17:15:38,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2041, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 17:15:38,218 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 372 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:38,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 1875 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:38,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2022-03-15 17:15:38,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 7025. [2022-03-15 17:15:38,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.478359908883827) internal successors, (24432), 7024 states have internal predecessors, (24432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:38,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24432 transitions. [2022-03-15 17:15:38,324 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24432 transitions. Word has length 39 [2022-03-15 17:15:38,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:38,324 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24432 transitions. [2022-03-15 17:15:38,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:38,324 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24432 transitions. [2022-03-15 17:15:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:38,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:38,335 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] [2022-03-15 17:15:38,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-15 17:15:38,335 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:38,335 INFO L85 PathProgramCache]: Analyzing trace with hash -557415458, now seen corresponding path program 207 times [2022-03-15 17:15:38,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:38,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435518425] [2022-03-15 17:15:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:38,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:38,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:38,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435518425] [2022-03-15 17:15:38,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435518425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:38,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:38,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:38,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181783559] [2022-03-15 17:15:38,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:38,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:38,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:38,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:38,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:38,565 INFO L87 Difference]: Start difference. First operand 7025 states and 24432 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:39,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:39,916 INFO L93 Difference]: Finished difference Result 9237 states and 31977 transitions. [2022-03-15 17:15:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 17:15:39,917 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:39,935 INFO L225 Difference]: With dead ends: 9237 [2022-03-15 17:15:39,935 INFO L226 Difference]: Without dead ends: 9174 [2022-03-15 17:15:39,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 17:15:39,936 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 350 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:39,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1873 Invalid, 2536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:39,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9174 states. [2022-03-15 17:15:40,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9174 to 7007. [2022-03-15 17:15:40,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7006 states have (on average 3.4811590065658007) internal successors, (24389), 7006 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:40,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 24389 transitions. [2022-03-15 17:15:40,043 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 24389 transitions. Word has length 39 [2022-03-15 17:15:40,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:40,043 INFO L470 AbstractCegarLoop]: Abstraction has 7007 states and 24389 transitions. [2022-03-15 17:15:40,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:40,043 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 24389 transitions. [2022-03-15 17:15:40,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:40,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:40,053 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] [2022-03-15 17:15:40,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-15 17:15:40,053 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:40,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:40,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1724316030, now seen corresponding path program 208 times [2022-03-15 17:15:40,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:40,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101547155] [2022-03-15 17:15:40,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:40,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:40,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:40,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101547155] [2022-03-15 17:15:40,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101547155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:40,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:40,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:40,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96838284] [2022-03-15 17:15:40,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:40,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:40,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:40,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:40,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:40,271 INFO L87 Difference]: Start difference. First operand 7007 states and 24389 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:41,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:41,689 INFO L93 Difference]: Finished difference Result 9300 states and 32134 transitions. [2022-03-15 17:15:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 17:15:41,689 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:41,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:41,707 INFO L225 Difference]: With dead ends: 9300 [2022-03-15 17:15:41,708 INFO L226 Difference]: Without dead ends: 9245 [2022-03-15 17:15:41,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:15:41,708 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 386 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:41,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1873 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2022-03-15 17:15:41,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 7009. [2022-03-15 17:15:41,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7009 states, 7008 states have (on average 3.4808789954337898) internal successors, (24394), 7008 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:41,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7009 states to 7009 states and 24394 transitions. [2022-03-15 17:15:41,848 INFO L78 Accepts]: Start accepts. Automaton has 7009 states and 24394 transitions. Word has length 39 [2022-03-15 17:15:41,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:41,849 INFO L470 AbstractCegarLoop]: Abstraction has 7009 states and 24394 transitions. [2022-03-15 17:15:41,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:41,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7009 states and 24394 transitions. [2022-03-15 17:15:41,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:41,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:41,859 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] [2022-03-15 17:15:41,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-15 17:15:41,859 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:41,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:41,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1233593252, now seen corresponding path program 209 times [2022-03-15 17:15:41,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:41,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678178725] [2022-03-15 17:15:41,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:41,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:42,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:42,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:42,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678178725] [2022-03-15 17:15:42,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678178725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:42,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:42,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:42,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532047109] [2022-03-15 17:15:42,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:42,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:42,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:42,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:42,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:42,076 INFO L87 Difference]: Start difference. First operand 7009 states and 24394 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:43,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:43,442 INFO L93 Difference]: Finished difference Result 9276 states and 32064 transitions. [2022-03-15 17:15:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 17:15:43,442 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:43,460 INFO L225 Difference]: With dead ends: 9276 [2022-03-15 17:15:43,461 INFO L226 Difference]: Without dead ends: 9233 [2022-03-15 17:15:43,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=231, Invalid=2219, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 17:15:43,461 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 376 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:43,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1856 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:43,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9233 states. [2022-03-15 17:15:43,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9233 to 7015. [2022-03-15 17:15:43,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7015 states, 7014 states have (on average 3.4797547761619616) internal successors, (24407), 7014 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:43,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7015 states to 7015 states and 24407 transitions. [2022-03-15 17:15:43,570 INFO L78 Accepts]: Start accepts. Automaton has 7015 states and 24407 transitions. Word has length 39 [2022-03-15 17:15:43,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:43,570 INFO L470 AbstractCegarLoop]: Abstraction has 7015 states and 24407 transitions. [2022-03-15 17:15:43,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:43,570 INFO L276 IsEmpty]: Start isEmpty. Operand 7015 states and 24407 transitions. [2022-03-15 17:15:43,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:43,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:43,581 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] [2022-03-15 17:15:43,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-15 17:15:43,581 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:43,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:43,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1505012802, now seen corresponding path program 210 times [2022-03-15 17:15:43,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:43,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402632948] [2022-03-15 17:15:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:43,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:43,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:43,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:43,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402632948] [2022-03-15 17:15:43,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402632948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:43,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:43,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:43,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697183948] [2022-03-15 17:15:43,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:43,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:43,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:43,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:43,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:43,803 INFO L87 Difference]: Start difference. First operand 7015 states and 24407 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:45,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:45,151 INFO L93 Difference]: Finished difference Result 9231 states and 31960 transitions. [2022-03-15 17:15:45,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 17:15:45,151 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:45,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:45,169 INFO L225 Difference]: With dead ends: 9231 [2022-03-15 17:15:45,169 INFO L226 Difference]: Without dead ends: 9170 [2022-03-15 17:15:45,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2041, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 17:15:45,170 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 351 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:45,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1844 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:45,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9170 states. [2022-03-15 17:15:45,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9170 to 7003. [2022-03-15 17:15:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 7002 states have (on average 3.4817195087117967) internal successors, (24379), 7002 states have internal predecessors, (24379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 24379 transitions. [2022-03-15 17:15:45,275 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 24379 transitions. Word has length 39 [2022-03-15 17:15:45,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:45,275 INFO L470 AbstractCegarLoop]: Abstraction has 7003 states and 24379 transitions. [2022-03-15 17:15:45,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 24379 transitions. [2022-03-15 17:15:45,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:45,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:45,286 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] [2022-03-15 17:15:45,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-15 17:15:45,286 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:45,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:45,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1994417988, now seen corresponding path program 211 times [2022-03-15 17:15:45,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:45,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565372696] [2022-03-15 17:15:45,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:45,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:45,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:45,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565372696] [2022-03-15 17:15:45,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565372696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:45,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:45,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:45,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802596639] [2022-03-15 17:15:45,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:45,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:45,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:45,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:45,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:45,527 INFO L87 Difference]: Start difference. First operand 7003 states and 24379 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:46,909 INFO L93 Difference]: Finished difference Result 9226 states and 31982 transitions. [2022-03-15 17:15:46,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:15:46,910 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:46,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:46,927 INFO L225 Difference]: With dead ends: 9226 [2022-03-15 17:15:46,927 INFO L226 Difference]: Without dead ends: 9135 [2022-03-15 17:15:46,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=236, Invalid=2214, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 17:15:46,927 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 357 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:46,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 1957 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:46,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9135 states. [2022-03-15 17:15:47,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9135 to 7009. [2022-03-15 17:15:47,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7009 states, 7008 states have (on average 3.4808789954337898) internal successors, (24394), 7008 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:47,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7009 states to 7009 states and 24394 transitions. [2022-03-15 17:15:47,028 INFO L78 Accepts]: Start accepts. Automaton has 7009 states and 24394 transitions. Word has length 39 [2022-03-15 17:15:47,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:47,029 INFO L470 AbstractCegarLoop]: Abstraction has 7009 states and 24394 transitions. [2022-03-15 17:15:47,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:47,029 INFO L276 IsEmpty]: Start isEmpty. Operand 7009 states and 24394 transitions. [2022-03-15 17:15:47,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:47,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:47,039 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] [2022-03-15 17:15:47,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-15 17:15:47,039 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:47,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:47,039 INFO L85 PathProgramCache]: Analyzing trace with hash -703873570, now seen corresponding path program 212 times [2022-03-15 17:15:47,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:47,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511671994] [2022-03-15 17:15:47,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:47,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:47,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:47,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511671994] [2022-03-15 17:15:47,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511671994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:47,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:47,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:47,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625516651] [2022-03-15 17:15:47,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:47,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:47,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:47,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:47,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:47,260 INFO L87 Difference]: Start difference. First operand 7009 states and 24394 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:48,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:48,661 INFO L93 Difference]: Finished difference Result 9257 states and 32029 transitions. [2022-03-15 17:15:48,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 17:15:48,661 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:48,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:48,681 INFO L225 Difference]: With dead ends: 9257 [2022-03-15 17:15:48,681 INFO L226 Difference]: Without dead ends: 9202 [2022-03-15 17:15:48,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:15:48,681 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 374 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:48,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 1913 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:48,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9202 states. [2022-03-15 17:15:48,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9202 to 7011. [2022-03-15 17:15:48,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 7010 states have (on average 3.480599144079886) internal successors, (24399), 7010 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:48,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 24399 transitions. [2022-03-15 17:15:48,841 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 24399 transitions. Word has length 39 [2022-03-15 17:15:48,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:48,841 INFO L470 AbstractCegarLoop]: Abstraction has 7011 states and 24399 transitions. [2022-03-15 17:15:48,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:48,842 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 24399 transitions. [2022-03-15 17:15:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:48,851 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:48,851 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] [2022-03-15 17:15:48,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-15 17:15:48,851 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:48,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash 633184444, now seen corresponding path program 213 times [2022-03-15 17:15:48,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:48,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459696340] [2022-03-15 17:15:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:48,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:49,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:49,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459696340] [2022-03-15 17:15:49,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459696340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:49,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:49,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:49,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143184244] [2022-03-15 17:15:49,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:49,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:49,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:49,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:49,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:49,072 INFO L87 Difference]: Start difference. First operand 7011 states and 24399 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:50,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:50,424 INFO L93 Difference]: Finished difference Result 9233 states and 31959 transitions. [2022-03-15 17:15:50,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:15:50,424 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:50,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:50,442 INFO L225 Difference]: With dead ends: 9233 [2022-03-15 17:15:50,442 INFO L226 Difference]: Without dead ends: 9190 [2022-03-15 17:15:50,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=2221, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 17:15:50,443 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 364 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:50,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1943 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:50,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9190 states. [2022-03-15 17:15:50,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9190 to 7017. [2022-03-15 17:15:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7017 states, 7016 states have (on average 3.4794754846066134) internal successors, (24412), 7016 states have internal predecessors, (24412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:50,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7017 states to 7017 states and 24412 transitions. [2022-03-15 17:15:50,549 INFO L78 Accepts]: Start accepts. Automaton has 7017 states and 24412 transitions. Word has length 39 [2022-03-15 17:15:50,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:50,550 INFO L470 AbstractCegarLoop]: Abstraction has 7017 states and 24412 transitions. [2022-03-15 17:15:50,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:50,550 INFO L276 IsEmpty]: Start isEmpty. Operand 7017 states and 24412 transitions. [2022-03-15 17:15:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:50,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:50,560 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] [2022-03-15 17:15:50,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-15 17:15:50,560 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:50,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:50,560 INFO L85 PathProgramCache]: Analyzing trace with hash 361764894, now seen corresponding path program 214 times [2022-03-15 17:15:50,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:50,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512349220] [2022-03-15 17:15:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:50,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:50,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:50,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:50,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512349220] [2022-03-15 17:15:50,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512349220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:50,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:50,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:50,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727210872] [2022-03-15 17:15:50,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:50,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:50,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:50,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:50,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:50,778 INFO L87 Difference]: Start difference. First operand 7017 states and 24412 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:52,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:52,148 INFO L93 Difference]: Finished difference Result 9188 states and 31855 transitions. [2022-03-15 17:15:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:15:52,148 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:52,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:52,166 INFO L225 Difference]: With dead ends: 9188 [2022-03-15 17:15:52,166 INFO L226 Difference]: Without dead ends: 9097 [2022-03-15 17:15:52,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=2221, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 17:15:52,166 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 350 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:52,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1928 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9097 states. [2022-03-15 17:15:52,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9097 to 6987. [2022-03-15 17:15:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4836816490123104) internal successors, (24337), 6986 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24337 transitions. [2022-03-15 17:15:52,272 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24337 transitions. Word has length 39 [2022-03-15 17:15:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:52,272 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24337 transitions. [2022-03-15 17:15:52,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:52,272 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24337 transitions. [2022-03-15 17:15:52,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:52,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:52,282 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] [2022-03-15 17:15:52,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-15 17:15:52,282 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:52,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:52,282 INFO L85 PathProgramCache]: Analyzing trace with hash -364286452, now seen corresponding path program 215 times [2022-03-15 17:15:52,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:52,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926364175] [2022-03-15 17:15:52,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:52,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:52,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:52,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926364175] [2022-03-15 17:15:52,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926364175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:52,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:52,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:52,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151574744] [2022-03-15 17:15:52,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:52,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:52,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:52,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:52,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:52,500 INFO L87 Difference]: Start difference. First operand 6987 states and 24337 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:54,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:54,184 INFO L93 Difference]: Finished difference Result 9481 states and 32641 transitions. [2022-03-15 17:15:54,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 17:15:54,185 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:54,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:54,202 INFO L225 Difference]: With dead ends: 9481 [2022-03-15 17:15:54,203 INFO L226 Difference]: Without dead ends: 9426 [2022-03-15 17:15:54,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=345, Invalid=3315, Unknown=0, NotChecked=0, Total=3660 [2022-03-15 17:15:54,203 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 463 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:54,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1967 Invalid, 2682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:15:54,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9426 states. [2022-03-15 17:15:54,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9426 to 6998. [2022-03-15 17:15:54,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6998 states, 6997 states have (on average 3.4833500071459196) internal successors, (24373), 6997 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:54,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6998 states to 6998 states and 24373 transitions. [2022-03-15 17:15:54,308 INFO L78 Accepts]: Start accepts. Automaton has 6998 states and 24373 transitions. Word has length 39 [2022-03-15 17:15:54,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:54,308 INFO L470 AbstractCegarLoop]: Abstraction has 6998 states and 24373 transitions. [2022-03-15 17:15:54,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:54,308 INFO L276 IsEmpty]: Start isEmpty. Operand 6998 states and 24373 transitions. [2022-03-15 17:15:54,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:54,318 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:54,318 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] [2022-03-15 17:15:54,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-15 17:15:54,318 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:54,319 INFO L85 PathProgramCache]: Analyzing trace with hash 808365770, now seen corresponding path program 216 times [2022-03-15 17:15:54,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:54,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317997281] [2022-03-15 17:15:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:54,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:54,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:54,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317997281] [2022-03-15 17:15:54,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317997281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:54,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:54,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:54,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845647753] [2022-03-15 17:15:54,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:54,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:54,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:54,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:54,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:54,536 INFO L87 Difference]: Start difference. First operand 6998 states and 24373 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:56,434 INFO L93 Difference]: Finished difference Result 10730 states and 36770 transitions. [2022-03-15 17:15:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-15 17:15:56,435 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:56,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:56,496 INFO L225 Difference]: With dead ends: 10730 [2022-03-15 17:15:56,496 INFO L226 Difference]: Without dead ends: 10607 [2022-03-15 17:15:56,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=390, Invalid=4032, Unknown=0, NotChecked=0, Total=4422 [2022-03-15 17:15:56,497 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 473 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 2971 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 3045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:56,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [473 Valid, 2401 Invalid, 3045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2971 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:15:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10607 states. [2022-03-15 17:15:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10607 to 7002. [2022-03-15 17:15:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.4836451935437793) internal successors, (24389), 7001 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24389 transitions. [2022-03-15 17:15:56,601 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24389 transitions. Word has length 39 [2022-03-15 17:15:56,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:56,601 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24389 transitions. [2022-03-15 17:15:56,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:56,601 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24389 transitions. [2022-03-15 17:15:56,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:56,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:56,611 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] [2022-03-15 17:15:56,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-15 17:15:56,611 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:56,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:56,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1069037832, now seen corresponding path program 217 times [2022-03-15 17:15:56,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:56,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562806907] [2022-03-15 17:15:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:56,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:56,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:56,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:56,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562806907] [2022-03-15 17:15:56,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562806907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:56,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:56,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:56,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081175230] [2022-03-15 17:15:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:56,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:56,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:56,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:56,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:56,828 INFO L87 Difference]: Start difference. First operand 7002 states and 24389 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:58,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:15:58,415 INFO L93 Difference]: Finished difference Result 9406 states and 32467 transitions. [2022-03-15 17:15:58,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-15 17:15:58,416 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:15:58,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:15:58,434 INFO L225 Difference]: With dead ends: 9406 [2022-03-15 17:15:58,434 INFO L226 Difference]: Without dead ends: 9315 [2022-03-15 17:15:58,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=3104, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:15:58,435 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 447 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:15:58,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 2023 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2585 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:15:58,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9315 states. [2022-03-15 17:15:58,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9315 to 7008. [2022-03-15 17:15:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 3.4819466248037676) internal successors, (24398), 7007 states have internal predecessors, (24398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 24398 transitions. [2022-03-15 17:15:58,588 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 24398 transitions. Word has length 39 [2022-03-15 17:15:58,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:15:58,588 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 24398 transitions. [2022-03-15 17:15:58,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:15:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 24398 transitions. [2022-03-15 17:15:58,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:15:58,598 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:15:58,598 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] [2022-03-15 17:15:58,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-15 17:15:58,598 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:15:58,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:15:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1723447258, now seen corresponding path program 218 times [2022-03-15 17:15:58,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:15:58,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049396741] [2022-03-15 17:15:58,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:15:58,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:15:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:15:58,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:15:58,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:15:58,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049396741] [2022-03-15 17:15:58,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049396741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:15:58,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:15:58,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:15:58,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997875494] [2022-03-15 17:15:58,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:15:58,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:15:58,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:15:58,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:15:58,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:15:58,816 INFO L87 Difference]: Start difference. First operand 7008 states and 24398 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:00,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:00,676 INFO L93 Difference]: Finished difference Result 10679 states and 36750 transitions. [2022-03-15 17:16:00,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-15 17:16:00,677 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:00,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:00,698 INFO L225 Difference]: With dead ends: 10679 [2022-03-15 17:16:00,698 INFO L226 Difference]: Without dead ends: 10579 [2022-03-15 17:16:00,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=3679, Unknown=0, NotChecked=0, Total=4032 [2022-03-15 17:16:00,699 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 447 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:00,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 2515 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:00,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2022-03-15 17:16:00,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 7002. [2022-03-15 17:16:00,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.4817883159548635) internal successors, (24376), 7001 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:00,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24376 transitions. [2022-03-15 17:16:00,878 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24376 transitions. Word has length 39 [2022-03-15 17:16:00,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:00,878 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24376 transitions. [2022-03-15 17:16:00,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24376 transitions. [2022-03-15 17:16:00,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:00,888 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:00,888 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] [2022-03-15 17:16:00,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-15 17:16:00,888 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:00,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:00,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1396649298, now seen corresponding path program 219 times [2022-03-15 17:16:00,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:00,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197761554] [2022-03-15 17:16:00,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:00,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:01,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:01,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:01,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197761554] [2022-03-15 17:16:01,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197761554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:01,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:01,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:01,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447588486] [2022-03-15 17:16:01,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:01,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:01,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:01,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:01,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:01,146 INFO L87 Difference]: Start difference. First operand 7002 states and 24376 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:02,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:02,912 INFO L93 Difference]: Finished difference Result 9391 states and 32328 transitions. [2022-03-15 17:16:02,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 17:16:02,912 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:02,930 INFO L225 Difference]: With dead ends: 9391 [2022-03-15 17:16:02,930 INFO L226 Difference]: Without dead ends: 9336 [2022-03-15 17:16:02,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1043 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=367, Invalid=3665, Unknown=0, NotChecked=0, Total=4032 [2022-03-15 17:16:02,931 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 442 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:02,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 1925 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:16:02,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9336 states. [2022-03-15 17:16:03,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9336 to 7007. [2022-03-15 17:16:03,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7006 states have (on average 3.4810162717670567) internal successors, (24388), 7006 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:03,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 24388 transitions. [2022-03-15 17:16:03,042 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 24388 transitions. Word has length 39 [2022-03-15 17:16:03,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:03,042 INFO L470 AbstractCegarLoop]: Abstraction has 7007 states and 24388 transitions. [2022-03-15 17:16:03,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 24388 transitions. [2022-03-15 17:16:03,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:03,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:03,053 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] [2022-03-15 17:16:03,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-15 17:16:03,053 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:03,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:03,053 INFO L85 PathProgramCache]: Analyzing trace with hash -223997076, now seen corresponding path program 220 times [2022-03-15 17:16:03,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:03,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100142001] [2022-03-15 17:16:03,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:03,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:03,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:03,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100142001] [2022-03-15 17:16:03,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100142001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:03,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:03,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:03,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589421751] [2022-03-15 17:16:03,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:03,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:03,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:03,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:03,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:03,314 INFO L87 Difference]: Start difference. First operand 7007 states and 24388 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:05,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:05,283 INFO L93 Difference]: Finished difference Result 10532 states and 36209 transitions. [2022-03-15 17:16:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-15 17:16:05,283 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:05,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:05,304 INFO L225 Difference]: With dead ends: 10532 [2022-03-15 17:16:05,304 INFO L226 Difference]: Without dead ends: 10472 [2022-03-15 17:16:05,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=392, Invalid=4030, Unknown=0, NotChecked=0, Total=4422 [2022-03-15 17:16:05,305 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 443 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 2999 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:05,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 2305 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2999 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:05,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2022-03-15 17:16:05,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 7007. [2022-03-15 17:16:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7006 states have (on average 3.4811590065658007) internal successors, (24389), 7006 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:05,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 24389 transitions. [2022-03-15 17:16:05,423 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 24389 transitions. Word has length 39 [2022-03-15 17:16:05,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:05,423 INFO L470 AbstractCegarLoop]: Abstraction has 7007 states and 24389 transitions. [2022-03-15 17:16:05,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 24389 transitions. [2022-03-15 17:16:05,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:05,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:05,433 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] [2022-03-15 17:16:05,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-15 17:16:05,433 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:05,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:05,433 INFO L85 PathProgramCache]: Analyzing trace with hash -291741956, now seen corresponding path program 221 times [2022-03-15 17:16:05,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:05,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114268976] [2022-03-15 17:16:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:05,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:05,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:05,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:05,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114268976] [2022-03-15 17:16:05,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114268976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:05,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:05,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:05,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871722592] [2022-03-15 17:16:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:05,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:05,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:05,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:05,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:05,650 INFO L87 Difference]: Start difference. First operand 7007 states and 24389 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:07,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:07,312 INFO L93 Difference]: Finished difference Result 9320 states and 32148 transitions. [2022-03-15 17:16:07,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 17:16:07,313 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:07,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:07,331 INFO L225 Difference]: With dead ends: 9320 [2022-03-15 17:16:07,331 INFO L226 Difference]: Without dead ends: 9277 [2022-03-15 17:16:07,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=311, Invalid=3111, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:16:07,332 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 423 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:07,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 1916 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:16:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2022-03-15 17:16:07,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 7016. [2022-03-15 17:16:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 3.479686386315039) internal successors, (24410), 7015 states have internal predecessors, (24410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:07,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 24410 transitions. [2022-03-15 17:16:07,441 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 24410 transitions. Word has length 39 [2022-03-15 17:16:07,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:07,441 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 24410 transitions. [2022-03-15 17:16:07,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 24410 transitions. [2022-03-15 17:16:07,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:07,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:07,451 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] [2022-03-15 17:16:07,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-15 17:16:07,452 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1458365180, now seen corresponding path program 222 times [2022-03-15 17:16:07,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:07,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997985287] [2022-03-15 17:16:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:07,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:07,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:07,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997985287] [2022-03-15 17:16:07,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997985287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:07,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:07,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:07,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828120472] [2022-03-15 17:16:07,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:07,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:07,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:07,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:07,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:07,672 INFO L87 Difference]: Start difference. First operand 7016 states and 24410 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:09,220 INFO L93 Difference]: Finished difference Result 9308 states and 32114 transitions. [2022-03-15 17:16:09,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 17:16:09,220 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:09,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:09,238 INFO L225 Difference]: With dead ends: 9308 [2022-03-15 17:16:09,238 INFO L226 Difference]: Without dead ends: 9257 [2022-03-15 17:16:09,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=280, Invalid=2690, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 17:16:09,239 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 399 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:09,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1796 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:16:09,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9257 states. [2022-03-15 17:16:09,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9257 to 7016. [2022-03-15 17:16:09,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 3.4792587312900927) internal successors, (24407), 7015 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:09,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 24407 transitions. [2022-03-15 17:16:09,346 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 24407 transitions. Word has length 39 [2022-03-15 17:16:09,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:09,346 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 24407 transitions. [2022-03-15 17:16:09,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:09,346 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 24407 transitions. [2022-03-15 17:16:09,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:09,357 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:09,357 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] [2022-03-15 17:16:09,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-15 17:16:09,357 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:09,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:09,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2075583582, now seen corresponding path program 223 times [2022-03-15 17:16:09,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:09,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619394740] [2022-03-15 17:16:09,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:09,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:09,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:09,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619394740] [2022-03-15 17:16:09,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619394740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:09,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:09,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:09,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029044286] [2022-03-15 17:16:09,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:09,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:09,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:09,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:09,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:09,573 INFO L87 Difference]: Start difference. First operand 7016 states and 24407 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:11,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:11,516 INFO L93 Difference]: Finished difference Result 10505 states and 36124 transitions. [2022-03-15 17:16:11,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 17:16:11,517 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:11,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:11,537 INFO L225 Difference]: With dead ends: 10505 [2022-03-15 17:16:11,537 INFO L226 Difference]: Without dead ends: 10459 [2022-03-15 17:16:11,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1025 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=353, Invalid=3679, Unknown=0, NotChecked=0, Total=4032 [2022-03-15 17:16:11,537 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 432 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 3095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:11,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 2295 Invalid, 3095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:11,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10459 states. [2022-03-15 17:16:11,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10459 to 7023. [2022-03-15 17:16:11,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7023 states, 7022 states have (on average 3.4779265166619195) internal successors, (24422), 7022 states have internal predecessors, (24422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:11,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 24422 transitions. [2022-03-15 17:16:11,646 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 24422 transitions. Word has length 39 [2022-03-15 17:16:11,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:11,646 INFO L470 AbstractCegarLoop]: Abstraction has 7023 states and 24422 transitions. [2022-03-15 17:16:11,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:11,646 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 24422 transitions. [2022-03-15 17:16:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:11,656 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:11,656 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] [2022-03-15 17:16:11,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-15 17:16:11,656 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:11,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:11,657 INFO L85 PathProgramCache]: Analyzing trace with hash 640516092, now seen corresponding path program 224 times [2022-03-15 17:16:11,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:11,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757445099] [2022-03-15 17:16:11,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:11,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:11,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:11,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:11,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757445099] [2022-03-15 17:16:11,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757445099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:11,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:11,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:11,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729650572] [2022-03-15 17:16:11,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:11,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:11,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:11,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:11,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:11,874 INFO L87 Difference]: Start difference. First operand 7023 states and 24422 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:13,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:13,382 INFO L93 Difference]: Finished difference Result 9294 states and 32067 transitions. [2022-03-15 17:16:13,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 17:16:13,383 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:13,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:13,401 INFO L225 Difference]: With dead ends: 9294 [2022-03-15 17:16:13,401 INFO L226 Difference]: Without dead ends: 9239 [2022-03-15 17:16:13,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=280, Invalid=2690, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 17:16:13,402 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 410 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:13,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1778 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:16:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2022-03-15 17:16:13,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 7020. [2022-03-15 17:16:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7020 states, 7019 states have (on average 3.4785581991736714) internal successors, (24416), 7019 states have internal predecessors, (24416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:13,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7020 states to 7020 states and 24416 transitions. [2022-03-15 17:16:13,545 INFO L78 Accepts]: Start accepts. Automaton has 7020 states and 24416 transitions. Word has length 39 [2022-03-15 17:16:13,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:13,545 INFO L470 AbstractCegarLoop]: Abstraction has 7020 states and 24416 transitions. [2022-03-15 17:16:13,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:13,545 INFO L276 IsEmpty]: Start isEmpty. Operand 7020 states and 24416 transitions. [2022-03-15 17:16:13,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:13,555 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:13,555 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] [2022-03-15 17:16:13,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-15 17:16:13,555 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:13,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:13,555 INFO L85 PathProgramCache]: Analyzing trace with hash -642187026, now seen corresponding path program 225 times [2022-03-15 17:16:13,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:13,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741574818] [2022-03-15 17:16:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:13,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:13,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:13,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:13,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741574818] [2022-03-15 17:16:13,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741574818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:13,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:13,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:13,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592642336] [2022-03-15 17:16:13,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:13,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:13,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:13,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:13,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:13,774 INFO L87 Difference]: Start difference. First operand 7020 states and 24416 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:15,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:15,316 INFO L93 Difference]: Finished difference Result 9347 states and 32183 transitions. [2022-03-15 17:16:15,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 17:16:15,316 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:15,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:15,334 INFO L225 Difference]: With dead ends: 9347 [2022-03-15 17:16:15,335 INFO L226 Difference]: Without dead ends: 9290 [2022-03-15 17:16:15,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=2893, Unknown=0, NotChecked=0, Total=3192 [2022-03-15 17:16:15,335 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 414 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:15,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 1800 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:16:15,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9290 states. [2022-03-15 17:16:15,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9290 to 7020. [2022-03-15 17:16:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7020 states, 7019 states have (on average 3.4784157287362873) internal successors, (24415), 7019 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:15,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7020 states to 7020 states and 24415 transitions. [2022-03-15 17:16:15,500 INFO L78 Accepts]: Start accepts. Automaton has 7020 states and 24415 transitions. Word has length 39 [2022-03-15 17:16:15,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:15,500 INFO L470 AbstractCegarLoop]: Abstraction has 7020 states and 24415 transitions. [2022-03-15 17:16:15,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 7020 states and 24415 transitions. [2022-03-15 17:16:15,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:15,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:15,510 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] [2022-03-15 17:16:15,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-15 17:16:15,510 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:15,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:15,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1935302090, now seen corresponding path program 226 times [2022-03-15 17:16:15,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:15,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522988348] [2022-03-15 17:16:15,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:15,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:15,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:15,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:15,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522988348] [2022-03-15 17:16:15,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522988348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:15,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:15,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:15,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678219391] [2022-03-15 17:16:15,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:15,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:15,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:15,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:15,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:15,737 INFO L87 Difference]: Start difference. First operand 7020 states and 24415 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:17,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:17,376 INFO L93 Difference]: Finished difference Result 9598 states and 33031 transitions. [2022-03-15 17:16:17,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-15 17:16:17,377 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:17,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:17,395 INFO L225 Difference]: With dead ends: 9598 [2022-03-15 17:16:17,395 INFO L226 Difference]: Without dead ends: 9539 [2022-03-15 17:16:17,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=316, Invalid=3106, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:16:17,396 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 427 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:17,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1940 Invalid, 2756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:16:17,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9539 states. [2022-03-15 17:16:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9539 to 7019. [2022-03-15 17:16:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.4786263892846967) internal successors, (24413), 7018 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24413 transitions. [2022-03-15 17:16:17,502 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24413 transitions. Word has length 39 [2022-03-15 17:16:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:17,502 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24413 transitions. [2022-03-15 17:16:17,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:17,502 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24413 transitions. [2022-03-15 17:16:17,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:17,512 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:17,512 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] [2022-03-15 17:16:17,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-15 17:16:17,513 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:17,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:17,513 INFO L85 PathProgramCache]: Analyzing trace with hash 696569562, now seen corresponding path program 227 times [2022-03-15 17:16:17,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:17,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709877533] [2022-03-15 17:16:17,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:17,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:17,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:17,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709877533] [2022-03-15 17:16:17,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709877533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:17,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:17,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:17,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334738156] [2022-03-15 17:16:17,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:17,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:17,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:17,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:17,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:17,755 INFO L87 Difference]: Start difference. First operand 7019 states and 24413 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:19,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:19,267 INFO L93 Difference]: Finished difference Result 9294 states and 32083 transitions. [2022-03-15 17:16:19,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:16:19,267 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:19,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:19,285 INFO L225 Difference]: With dead ends: 9294 [2022-03-15 17:16:19,285 INFO L226 Difference]: Without dead ends: 9219 [2022-03-15 17:16:19,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=282, Invalid=2798, Unknown=0, NotChecked=0, Total=3080 [2022-03-15 17:16:19,286 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 408 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:19,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1934 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2587 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:16:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9219 states. [2022-03-15 17:16:19,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9219 to 7005. [2022-03-15 17:16:19,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7005 states, 7004 states have (on average 3.48043974871502) internal successors, (24377), 7004 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:19,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 24377 transitions. [2022-03-15 17:16:19,392 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 24377 transitions. Word has length 39 [2022-03-15 17:16:19,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:19,392 INFO L470 AbstractCegarLoop]: Abstraction has 7005 states and 24377 transitions. [2022-03-15 17:16:19,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:19,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 24377 transitions. [2022-03-15 17:16:19,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:19,402 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:19,402 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] [2022-03-15 17:16:19,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-15 17:16:19,402 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:19,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:19,403 INFO L85 PathProgramCache]: Analyzing trace with hash 860316378, now seen corresponding path program 228 times [2022-03-15 17:16:19,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:19,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223833384] [2022-03-15 17:16:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:19,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:19,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223833384] [2022-03-15 17:16:19,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223833384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:19,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:19,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:19,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136027781] [2022-03-15 17:16:19,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:19,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:19,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:19,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:19,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:19,620 INFO L87 Difference]: Start difference. First operand 7005 states and 24377 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:21,403 INFO L93 Difference]: Finished difference Result 9664 states and 33390 transitions. [2022-03-15 17:16:21,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-15 17:16:21,404 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:21,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:21,422 INFO L225 Difference]: With dead ends: 9664 [2022-03-15 17:16:21,422 INFO L226 Difference]: Without dead ends: 9569 [2022-03-15 17:16:21,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=327, Invalid=3333, Unknown=0, NotChecked=0, Total=3660 [2022-03-15 17:16:21,423 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 412 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:21,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 2233 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2022-03-15 17:16:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 6979. [2022-03-15 17:16:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6979 states, 6978 states have (on average 3.483519633132703) internal successors, (24308), 6978 states have internal predecessors, (24308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:21,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6979 states to 6979 states and 24308 transitions. [2022-03-15 17:16:21,534 INFO L78 Accepts]: Start accepts. Automaton has 6979 states and 24308 transitions. Word has length 39 [2022-03-15 17:16:21,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:21,534 INFO L470 AbstractCegarLoop]: Abstraction has 6979 states and 24308 transitions. [2022-03-15 17:16:21,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 6979 states and 24308 transitions. [2022-03-15 17:16:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:21,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:21,544 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] [2022-03-15 17:16:21,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-15 17:16:21,544 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:21,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1307600068, now seen corresponding path program 229 times [2022-03-15 17:16:21,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:21,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101957216] [2022-03-15 17:16:21,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:21,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:21,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:21,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101957216] [2022-03-15 17:16:21,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101957216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:21,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:21,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:21,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459672902] [2022-03-15 17:16:21,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:21,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:21,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:21,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:21,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:21,763 INFO L87 Difference]: Start difference. First operand 6979 states and 24308 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:25,392 INFO L93 Difference]: Finished difference Result 12981 states and 44182 transitions. [2022-03-15 17:16:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-03-15 17:16:25,392 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:25,418 INFO L225 Difference]: With dead ends: 12981 [2022-03-15 17:16:25,418 INFO L226 Difference]: Without dead ends: 12875 [2022-03-15 17:16:25,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3575 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=739, Invalid=9973, Unknown=0, NotChecked=0, Total=10712 [2022-03-15 17:16:25,420 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 699 mSDsluCounter, 3844 mSDsCounter, 0 mSdLazyCounter, 5256 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 5386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 5256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:25,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 3814 Invalid, 5386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 5256 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 17:16:25,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12875 states. [2022-03-15 17:16:25,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12875 to 7021. [2022-03-15 17:16:25,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7021 states, 7020 states have (on average 3.4853276353276352) internal successors, (24467), 7020 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7021 states to 7021 states and 24467 transitions. [2022-03-15 17:16:25,613 INFO L78 Accepts]: Start accepts. Automaton has 7021 states and 24467 transitions. Word has length 39 [2022-03-15 17:16:25,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:25,613 INFO L470 AbstractCegarLoop]: Abstraction has 7021 states and 24467 transitions. [2022-03-15 17:16:25,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 7021 states and 24467 transitions. [2022-03-15 17:16:25,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:25,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:25,623 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] [2022-03-15 17:16:25,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-15 17:16:25,623 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:25,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:25,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1492476328, now seen corresponding path program 230 times [2022-03-15 17:16:25,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:25,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773811284] [2022-03-15 17:16:25,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:25,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:25,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:25,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773811284] [2022-03-15 17:16:25,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773811284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:25,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:25,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:25,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653659186] [2022-03-15 17:16:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:25,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:25,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:25,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:25,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:25,841 INFO L87 Difference]: Start difference. First operand 7021 states and 24467 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:27,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:27,895 INFO L93 Difference]: Finished difference Result 10377 states and 35684 transitions. [2022-03-15 17:16:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-03-15 17:16:27,895 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:27,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:27,916 INFO L225 Difference]: With dead ends: 10377 [2022-03-15 17:16:27,916 INFO L226 Difference]: Without dead ends: 10313 [2022-03-15 17:16:27,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=422, Invalid=4980, Unknown=0, NotChecked=0, Total=5402 [2022-03-15 17:16:27,916 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 546 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 3001 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:27,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 2216 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3001 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10313 states. [2022-03-15 17:16:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10313 to 7039. [2022-03-15 17:16:28,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 3.4857914180164817) internal successors, (24533), 7038 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 24533 transitions. [2022-03-15 17:16:28,084 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 24533 transitions. Word has length 39 [2022-03-15 17:16:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:28,084 INFO L470 AbstractCegarLoop]: Abstraction has 7039 states and 24533 transitions. [2022-03-15 17:16:28,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 24533 transitions. [2022-03-15 17:16:28,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:28,094 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:28,094 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] [2022-03-15 17:16:28,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-15 17:16:28,094 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:28,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:28,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1884007398, now seen corresponding path program 231 times [2022-03-15 17:16:28,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:28,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874955693] [2022-03-15 17:16:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:28,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:28,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:28,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:28,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874955693] [2022-03-15 17:16:28,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874955693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:28,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:28,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:28,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200694618] [2022-03-15 17:16:28,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:28,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:28,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:28,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:28,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:28,316 INFO L87 Difference]: Start difference. First operand 7039 states and 24533 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:29,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:29,699 INFO L93 Difference]: Finished difference Result 9481 states and 32651 transitions. [2022-03-15 17:16:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 17:16:29,699 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:29,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:29,718 INFO L225 Difference]: With dead ends: 9481 [2022-03-15 17:16:29,718 INFO L226 Difference]: Without dead ends: 9438 [2022-03-15 17:16:29,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=2314, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 17:16:29,719 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 420 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:29,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 1942 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:16:29,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2022-03-15 17:16:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 7067. [2022-03-15 17:16:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7067 states, 7066 states have (on average 3.484574016416643) internal successors, (24622), 7066 states have internal predecessors, (24622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7067 states to 7067 states and 24622 transitions. [2022-03-15 17:16:29,825 INFO L78 Accepts]: Start accepts. Automaton has 7067 states and 24622 transitions. Word has length 39 [2022-03-15 17:16:29,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:29,825 INFO L470 AbstractCegarLoop]: Abstraction has 7067 states and 24622 transitions. [2022-03-15 17:16:29,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:29,826 INFO L276 IsEmpty]: Start isEmpty. Operand 7067 states and 24622 transitions. [2022-03-15 17:16:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:29,836 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:29,836 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] [2022-03-15 17:16:29,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-15 17:16:29,836 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:29,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1863858664, now seen corresponding path program 232 times [2022-03-15 17:16:29,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:29,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596119224] [2022-03-15 17:16:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:29,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:30,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:30,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:30,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596119224] [2022-03-15 17:16:30,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596119224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:30,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:30,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:30,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412304287] [2022-03-15 17:16:30,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:30,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:30,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:30,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:30,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:30,080 INFO L87 Difference]: Start difference. First operand 7067 states and 24622 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:31,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:31,627 INFO L93 Difference]: Finished difference Result 9597 states and 33004 transitions. [2022-03-15 17:16:31,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:16:31,627 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:31,646 INFO L225 Difference]: With dead ends: 9597 [2022-03-15 17:16:31,646 INFO L226 Difference]: Without dead ends: 9554 [2022-03-15 17:16:31,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=262, Invalid=2600, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:16:31,646 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 425 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:31,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 2075 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:16:31,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9554 states. [2022-03-15 17:16:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9554 to 7063. [2022-03-15 17:16:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7063 states, 7062 states have (on average 3.485131690739167) internal successors, (24612), 7062 states have internal predecessors, (24612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7063 states to 7063 states and 24612 transitions. [2022-03-15 17:16:31,756 INFO L78 Accepts]: Start accepts. Automaton has 7063 states and 24612 transitions. Word has length 39 [2022-03-15 17:16:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:31,756 INFO L470 AbstractCegarLoop]: Abstraction has 7063 states and 24612 transitions. [2022-03-15 17:16:31,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:31,756 INFO L276 IsEmpty]: Start isEmpty. Operand 7063 states and 24612 transitions. [2022-03-15 17:16:31,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:31,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:31,767 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] [2022-03-15 17:16:31,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-15 17:16:31,767 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:31,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash -711355176, now seen corresponding path program 233 times [2022-03-15 17:16:31,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:31,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789878515] [2022-03-15 17:16:31,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:31,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:31,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:31,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:31,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789878515] [2022-03-15 17:16:31,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789878515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:31,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:31,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:31,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927271347] [2022-03-15 17:16:31,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:31,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:31,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:31,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:31,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:31,985 INFO L87 Difference]: Start difference. First operand 7063 states and 24612 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:33,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:33,775 INFO L93 Difference]: Finished difference Result 10704 states and 36777 transitions. [2022-03-15 17:16:33,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-15 17:16:33,775 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:33,796 INFO L225 Difference]: With dead ends: 10704 [2022-03-15 17:16:33,796 INFO L226 Difference]: Without dead ends: 10644 [2022-03-15 17:16:33,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=318, Invalid=3342, Unknown=0, NotChecked=0, Total=3660 [2022-03-15 17:16:33,797 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 457 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 3080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:33,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2399 Invalid, 3080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:33,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10644 states. [2022-03-15 17:16:33,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10644 to 7057. [2022-03-15 17:16:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 7056 states have (on average 3.48625283446712) internal successors, (24599), 7056 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 24599 transitions. [2022-03-15 17:16:33,916 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 24599 transitions. Word has length 39 [2022-03-15 17:16:33,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:33,916 INFO L470 AbstractCegarLoop]: Abstraction has 7057 states and 24599 transitions. [2022-03-15 17:16:33,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 24599 transitions. [2022-03-15 17:16:33,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:33,926 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:33,926 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] [2022-03-15 17:16:33,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-15 17:16:33,926 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:33,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:33,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1504045578, now seen corresponding path program 234 times [2022-03-15 17:16:33,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:33,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421607604] [2022-03-15 17:16:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:33,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:34,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:34,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:34,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421607604] [2022-03-15 17:16:34,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421607604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:34,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:34,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:16:34,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401097288] [2022-03-15 17:16:34,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:34,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:16:34,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:34,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:16:34,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:16:34,134 INFO L87 Difference]: Start difference. First operand 7057 states and 24599 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:35,742 INFO L93 Difference]: Finished difference Result 10680 states and 36737 transitions. [2022-03-15 17:16:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 17:16:35,743 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:35,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:35,763 INFO L225 Difference]: With dead ends: 10680 [2022-03-15 17:16:35,763 INFO L226 Difference]: Without dead ends: 10604 [2022-03-15 17:16:35,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=2700, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 17:16:35,764 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 428 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:35,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 2186 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:16:35,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2022-03-15 17:16:35,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 7069. [2022-03-15 17:16:35,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7069 states, 7068 states have (on average 3.4837294850028298) internal successors, (24623), 7068 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:35,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7069 states to 7069 states and 24623 transitions. [2022-03-15 17:16:35,879 INFO L78 Accepts]: Start accepts. Automaton has 7069 states and 24623 transitions. Word has length 39 [2022-03-15 17:16:35,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:35,879 INFO L470 AbstractCegarLoop]: Abstraction has 7069 states and 24623 transitions. [2022-03-15 17:16:35,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:35,879 INFO L276 IsEmpty]: Start isEmpty. Operand 7069 states and 24623 transitions. [2022-03-15 17:16:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:35,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:35,889 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] [2022-03-15 17:16:35,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-15 17:16:35,890 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:35,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:35,890 INFO L85 PathProgramCache]: Analyzing trace with hash 485991966, now seen corresponding path program 235 times [2022-03-15 17:16:35,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:35,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227408823] [2022-03-15 17:16:35,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:35,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:36,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:36,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:36,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227408823] [2022-03-15 17:16:36,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227408823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:36,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:36,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:36,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586534819] [2022-03-15 17:16:36,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:36,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:36,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:36,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:36,108 INFO L87 Difference]: Start difference. First operand 7069 states and 24623 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:37,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:37,861 INFO L93 Difference]: Finished difference Result 10662 states and 36683 transitions. [2022-03-15 17:16:37,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 17:16:37,861 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:37,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:37,880 INFO L225 Difference]: With dead ends: 10662 [2022-03-15 17:16:37,881 INFO L226 Difference]: Without dead ends: 10592 [2022-03-15 17:16:37,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=295, Invalid=3127, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:16:37,881 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 446 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:37,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 2414 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:37,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-03-15 17:16:37,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 7057. [2022-03-15 17:16:37,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 7056 states have (on average 3.485685941043084) internal successors, (24595), 7056 states have internal predecessors, (24595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 24595 transitions. [2022-03-15 17:16:38,002 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 24595 transitions. Word has length 39 [2022-03-15 17:16:38,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:38,002 INFO L470 AbstractCegarLoop]: Abstraction has 7057 states and 24595 transitions. [2022-03-15 17:16:38,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 24595 transitions. [2022-03-15 17:16:38,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:38,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:38,013 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] [2022-03-15 17:16:38,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-15 17:16:38,013 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:38,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:38,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1332175646, now seen corresponding path program 236 times [2022-03-15 17:16:38,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:38,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126829050] [2022-03-15 17:16:38,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:38,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:38,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:38,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126829050] [2022-03-15 17:16:38,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126829050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:38,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:38,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:38,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303508675] [2022-03-15 17:16:38,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:38,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:38,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:38,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:38,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:38,236 INFO L87 Difference]: Start difference. First operand 7057 states and 24595 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:40,379 INFO L93 Difference]: Finished difference Result 10427 states and 35961 transitions. [2022-03-15 17:16:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-15 17:16:40,379 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:40,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:40,399 INFO L225 Difference]: With dead ends: 10427 [2022-03-15 17:16:40,399 INFO L226 Difference]: Without dead ends: 10321 [2022-03-15 17:16:40,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1652 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=452, Invalid=5248, Unknown=0, NotChecked=0, Total=5700 [2022-03-15 17:16:40,400 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 562 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 2316 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:40,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 2316 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:40,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10321 states. [2022-03-15 17:16:40,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10321 to 7084. [2022-03-15 17:16:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7084 states, 7083 states have (on average 3.4859522801072993) internal successors, (24691), 7083 states have internal predecessors, (24691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:40,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7084 states to 7084 states and 24691 transitions. [2022-03-15 17:16:40,511 INFO L78 Accepts]: Start accepts. Automaton has 7084 states and 24691 transitions. Word has length 39 [2022-03-15 17:16:40,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:40,512 INFO L470 AbstractCegarLoop]: Abstraction has 7084 states and 24691 transitions. [2022-03-15 17:16:40,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7084 states and 24691 transitions. [2022-03-15 17:16:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:40,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:40,522 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] [2022-03-15 17:16:40,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-15 17:16:40,522 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:40,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:40,522 INFO L85 PathProgramCache]: Analyzing trace with hash -448422656, now seen corresponding path program 237 times [2022-03-15 17:16:40,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:40,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180337711] [2022-03-15 17:16:40,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:40,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:40,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:40,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180337711] [2022-03-15 17:16:40,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180337711] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:40,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:40,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:40,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295523693] [2022-03-15 17:16:40,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:40,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:40,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:40,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:40,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:40,743 INFO L87 Difference]: Start difference. First operand 7084 states and 24691 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:43,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:43,141 INFO L93 Difference]: Finished difference Result 11618 states and 40022 transitions. [2022-03-15 17:16:43,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-15 17:16:43,141 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:43,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:43,164 INFO L225 Difference]: With dead ends: 11618 [2022-03-15 17:16:43,164 INFO L226 Difference]: Without dead ends: 11566 [2022-03-15 17:16:43,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2073 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=509, Invalid=6297, Unknown=0, NotChecked=0, Total=6806 [2022-03-15 17:16:43,165 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 603 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:43,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 2668 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:16:43,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2022-03-15 17:16:43,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 7018. [2022-03-15 17:16:43,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7018 states, 7017 states have (on average 3.4855351289724954) internal successors, (24458), 7017 states have internal predecessors, (24458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:43,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 24458 transitions. [2022-03-15 17:16:43,303 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 24458 transitions. Word has length 39 [2022-03-15 17:16:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:43,303 INFO L470 AbstractCegarLoop]: Abstraction has 7018 states and 24458 transitions. [2022-03-15 17:16:43,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 24458 transitions. [2022-03-15 17:16:43,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:43,314 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:43,314 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] [2022-03-15 17:16:43,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-15 17:16:43,314 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:43,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash -2044308080, now seen corresponding path program 238 times [2022-03-15 17:16:43,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:43,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606814074] [2022-03-15 17:16:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:43,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:43,531 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:43,531 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606814074] [2022-03-15 17:16:43,531 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606814074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:43,531 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:43,531 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:43,531 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521788113] [2022-03-15 17:16:43,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:43,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:43,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:43,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:43,532 INFO L87 Difference]: Start difference. First operand 7018 states and 24458 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:44,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:44,919 INFO L93 Difference]: Finished difference Result 9466 states and 32661 transitions. [2022-03-15 17:16:44,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 17:16:44,920 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:44,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:44,938 INFO L225 Difference]: With dead ends: 9466 [2022-03-15 17:16:44,938 INFO L226 Difference]: Without dead ends: 9411 [2022-03-15 17:16:44,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=246, Invalid=2304, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 17:16:44,938 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 408 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 2447 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:44,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1911 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2447 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:16:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9411 states. [2022-03-15 17:16:45,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9411 to 7026. [2022-03-15 17:16:45,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 7025 states have (on average 3.484982206405694) internal successors, (24482), 7025 states have internal predecessors, (24482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:45,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 24482 transitions. [2022-03-15 17:16:45,044 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 24482 transitions. Word has length 39 [2022-03-15 17:16:45,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:45,045 INFO L470 AbstractCegarLoop]: Abstraction has 7026 states and 24482 transitions. [2022-03-15 17:16:45,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:45,045 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 24482 transitions. [2022-03-15 17:16:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:45,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:45,055 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] [2022-03-15 17:16:45,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-15 17:16:45,055 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:45,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:45,055 INFO L85 PathProgramCache]: Analyzing trace with hash -871655858, now seen corresponding path program 239 times [2022-03-15 17:16:45,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:45,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424528310] [2022-03-15 17:16:45,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:45,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:45,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:45,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424528310] [2022-03-15 17:16:45,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424528310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:45,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:45,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:45,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751819807] [2022-03-15 17:16:45,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:45,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:45,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:45,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:45,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:45,275 INFO L87 Difference]: Start difference. First operand 7026 states and 24482 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:47,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:47,083 INFO L93 Difference]: Finished difference Result 10690 states and 36761 transitions. [2022-03-15 17:16:47,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 17:16:47,083 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:47,103 INFO L225 Difference]: With dead ends: 10690 [2022-03-15 17:16:47,103 INFO L226 Difference]: Without dead ends: 10630 [2022-03-15 17:16:47,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=336, Invalid=3446, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 17:16:47,103 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 456 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 2932 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:47,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2414 Invalid, 2995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:16:47,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10630 states. [2022-03-15 17:16:47,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10630 to 7024. [2022-03-15 17:16:47,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7024 states, 7023 states have (on average 3.48526270824434) internal successors, (24477), 7023 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:47,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7024 states to 7024 states and 24477 transitions. [2022-03-15 17:16:47,217 INFO L78 Accepts]: Start accepts. Automaton has 7024 states and 24477 transitions. Word has length 39 [2022-03-15 17:16:47,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:47,217 INFO L470 AbstractCegarLoop]: Abstraction has 7024 states and 24477 transitions. [2022-03-15 17:16:47,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 7024 states and 24477 transitions. [2022-03-15 17:16:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:47,228 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:47,229 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] [2022-03-15 17:16:47,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-15 17:16:47,229 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:47,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:47,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1545907836, now seen corresponding path program 240 times [2022-03-15 17:16:47,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:47,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245733312] [2022-03-15 17:16:47,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:47,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:47,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:47,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:47,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245733312] [2022-03-15 17:16:47,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245733312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:47,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:47,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:47,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329224410] [2022-03-15 17:16:47,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:47,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:47,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:47,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:47,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:47,445 INFO L87 Difference]: Start difference. First operand 7024 states and 24477 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:48,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:48,751 INFO L93 Difference]: Finished difference Result 9387 states and 32487 transitions. [2022-03-15 17:16:48,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 17:16:48,751 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:48,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:48,770 INFO L225 Difference]: With dead ends: 9387 [2022-03-15 17:16:48,770 INFO L226 Difference]: Without dead ends: 9296 [2022-03-15 17:16:48,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=2133, Unknown=0, NotChecked=0, Total=2352 [2022-03-15 17:16:48,770 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 386 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:48,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1983 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 17:16:48,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9296 states. [2022-03-15 17:16:48,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9296 to 7024. [2022-03-15 17:16:48,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7024 states, 7023 states have (on average 3.484408372490389) internal successors, (24471), 7023 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:48,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7024 states to 7024 states and 24471 transitions. [2022-03-15 17:16:48,909 INFO L78 Accepts]: Start accepts. Automaton has 7024 states and 24471 transitions. Word has length 39 [2022-03-15 17:16:48,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:48,909 INFO L470 AbstractCegarLoop]: Abstraction has 7024 states and 24471 transitions. [2022-03-15 17:16:48,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:48,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7024 states and 24471 transitions. [2022-03-15 17:16:48,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:48,919 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:48,919 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] [2022-03-15 17:16:48,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-15 17:16:48,920 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:48,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:48,920 INFO L85 PathProgramCache]: Analyzing trace with hash 43425630, now seen corresponding path program 241 times [2022-03-15 17:16:48,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:48,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17679840] [2022-03-15 17:16:48,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:48,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:49,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:49,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:49,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17679840] [2022-03-15 17:16:49,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17679840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:49,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:49,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:49,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655570698] [2022-03-15 17:16:49,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:49,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:49,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:49,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:49,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:49,154 INFO L87 Difference]: Start difference. First operand 7024 states and 24471 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:51,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:51,002 INFO L93 Difference]: Finished difference Result 10780 states and 37126 transitions. [2022-03-15 17:16:51,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 17:16:51,002 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:51,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:51,023 INFO L225 Difference]: With dead ends: 10780 [2022-03-15 17:16:51,023 INFO L226 Difference]: Without dead ends: 10680 [2022-03-15 17:16:51,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=345, Invalid=3561, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 17:16:51,024 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 442 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:51,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 2622 Invalid, 3219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:51,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2022-03-15 17:16:51,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 7036. [2022-03-15 17:16:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7035 states have (on average 3.483866382373845) internal successors, (24509), 7035 states have internal predecessors, (24509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 24509 transitions. [2022-03-15 17:16:51,174 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 24509 transitions. Word has length 39 [2022-03-15 17:16:51,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:51,174 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 24509 transitions. [2022-03-15 17:16:51,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 24509 transitions. [2022-03-15 17:16:51,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:51,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:51,184 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] [2022-03-15 17:16:51,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-15 17:16:51,185 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:51,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:51,185 INFO L85 PathProgramCache]: Analyzing trace with hash -193199366, now seen corresponding path program 242 times [2022-03-15 17:16:51,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:51,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576995315] [2022-03-15 17:16:51,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:51,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:51,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:51,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576995315] [2022-03-15 17:16:51,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576995315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:51,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:51,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:16:51,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179071082] [2022-03-15 17:16:51,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:51,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:16:51,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:16:51,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:16:51,391 INFO L87 Difference]: Start difference. First operand 7036 states and 24509 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:52,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:52,909 INFO L93 Difference]: Finished difference Result 10500 states and 36228 transitions. [2022-03-15 17:16:52,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 17:16:52,909 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:52,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:52,930 INFO L225 Difference]: With dead ends: 10500 [2022-03-15 17:16:52,930 INFO L226 Difference]: Without dead ends: 10424 [2022-03-15 17:16:52,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=246, Invalid=2406, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:16:52,930 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 391 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:52,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 2168 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:16:52,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2022-03-15 17:16:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 7068. [2022-03-15 17:16:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7068 states, 7067 states have (on average 3.4805433705957265) internal successors, (24597), 7067 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7068 states to 7068 states and 24597 transitions. [2022-03-15 17:16:53,082 INFO L78 Accepts]: Start accepts. Automaton has 7068 states and 24597 transitions. Word has length 39 [2022-03-15 17:16:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:53,082 INFO L470 AbstractCegarLoop]: Abstraction has 7068 states and 24597 transitions. [2022-03-15 17:16:53,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:53,082 INFO L276 IsEmpty]: Start isEmpty. Operand 7068 states and 24597 transitions. [2022-03-15 17:16:53,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:53,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:53,092 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] [2022-03-15 17:16:53,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-15 17:16:53,093 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:53,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1211252978, now seen corresponding path program 243 times [2022-03-15 17:16:53,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:53,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132819179] [2022-03-15 17:16:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:53,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:53,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:53,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132819179] [2022-03-15 17:16:53,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132819179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:53,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:53,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:53,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803698155] [2022-03-15 17:16:53,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:53,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:53,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:53,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:53,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:53,309 INFO L87 Difference]: Start difference. First operand 7068 states and 24597 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:54,971 INFO L93 Difference]: Finished difference Result 10482 states and 36174 transitions. [2022-03-15 17:16:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-15 17:16:54,971 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:54,992 INFO L225 Difference]: With dead ends: 10482 [2022-03-15 17:16:54,992 INFO L226 Difference]: Without dead ends: 10416 [2022-03-15 17:16:54,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=270, Invalid=2810, Unknown=0, NotChecked=0, Total=3080 [2022-03-15 17:16:54,993 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 417 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 2984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:54,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 2375 Invalid, 2984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2929 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:16:55,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2022-03-15 17:16:55,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 7060. [2022-03-15 17:16:55,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7060 states, 7059 states have (on average 3.48108797280068) internal successors, (24573), 7059 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:55,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 24573 transitions. [2022-03-15 17:16:55,145 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 24573 transitions. Word has length 39 [2022-03-15 17:16:55,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:55,145 INFO L470 AbstractCegarLoop]: Abstraction has 7060 states and 24573 transitions. [2022-03-15 17:16:55,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:55,145 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 24573 transitions. [2022-03-15 17:16:55,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:55,156 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:55,156 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] [2022-03-15 17:16:55,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-15 17:16:55,156 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:55,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:55,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1493518632, now seen corresponding path program 244 times [2022-03-15 17:16:55,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:55,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371409256] [2022-03-15 17:16:55,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:55,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:55,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:55,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371409256] [2022-03-15 17:16:55,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371409256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:55,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:55,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:55,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326883362] [2022-03-15 17:16:55,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:55,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:55,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:55,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:55,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:55,374 INFO L87 Difference]: Start difference. First operand 7060 states and 24573 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:57,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:57,102 INFO L93 Difference]: Finished difference Result 10652 states and 36718 transitions. [2022-03-15 17:16:57,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-15 17:16:57,102 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:57,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:57,123 INFO L225 Difference]: With dead ends: 10652 [2022-03-15 17:16:57,123 INFO L226 Difference]: Without dead ends: 10490 [2022-03-15 17:16:57,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=295, Invalid=3011, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 17:16:57,124 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 412 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:57,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 2505 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:16:57,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10490 states. [2022-03-15 17:16:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10490 to 6976. [2022-03-15 17:16:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6976 states, 6975 states have (on average 3.4874551971326166) internal successors, (24325), 6975 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6976 states to 6976 states and 24325 transitions. [2022-03-15 17:16:57,276 INFO L78 Accepts]: Start accepts. Automaton has 6976 states and 24325 transitions. Word has length 39 [2022-03-15 17:16:57,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:16:57,276 INFO L470 AbstractCegarLoop]: Abstraction has 6976 states and 24325 transitions. [2022-03-15 17:16:57,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:57,276 INFO L276 IsEmpty]: Start isEmpty. Operand 6976 states and 24325 transitions. [2022-03-15 17:16:57,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:16:57,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:16:57,286 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] [2022-03-15 17:16:57,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-15 17:16:57,286 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:16:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:16:57,286 INFO L85 PathProgramCache]: Analyzing trace with hash -446000826, now seen corresponding path program 245 times [2022-03-15 17:16:57,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:16:57,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521309463] [2022-03-15 17:16:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:16:57,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:16:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:16:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:16:57,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:16:57,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521309463] [2022-03-15 17:16:57,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521309463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:16:57,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:16:57,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:16:57,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035516732] [2022-03-15 17:16:57,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:16:57,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:16:57,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:16:57,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:16:57,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:16:57,503 INFO L87 Difference]: Start difference. First operand 6976 states and 24325 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:16:59,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:16:59,867 INFO L93 Difference]: Finished difference Result 10481 states and 35926 transitions. [2022-03-15 17:16:59,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-03-15 17:16:59,868 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:16:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:16:59,889 INFO L225 Difference]: With dead ends: 10481 [2022-03-15 17:16:59,889 INFO L226 Difference]: Without dead ends: 10417 [2022-03-15 17:16:59,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=493, Invalid=5827, Unknown=0, NotChecked=0, Total=6320 [2022-03-15 17:16:59,890 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 551 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 3294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:16:59,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 2291 Invalid, 3294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 3182 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:16:59,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-03-15 17:17:00,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 6979. [2022-03-15 17:17:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6979 states, 6978 states have (on average 3.487675551734021) internal successors, (24337), 6978 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6979 states to 6979 states and 24337 transitions. [2022-03-15 17:17:00,031 INFO L78 Accepts]: Start accepts. Automaton has 6979 states and 24337 transitions. Word has length 39 [2022-03-15 17:17:00,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:00,032 INFO L470 AbstractCegarLoop]: Abstraction has 6979 states and 24337 transitions. [2022-03-15 17:17:00,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6979 states and 24337 transitions. [2022-03-15 17:17:00,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:00,043 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:00,043 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] [2022-03-15 17:17:00,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-15 17:17:00,043 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:00,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash 472482744, now seen corresponding path program 246 times [2022-03-15 17:17:00,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:00,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837539833] [2022-03-15 17:17:00,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:00,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:00,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:00,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:00,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837539833] [2022-03-15 17:17:00,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837539833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:00,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:00,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:00,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312844808] [2022-03-15 17:17:00,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:00,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:00,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:00,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:00,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:00,272 INFO L87 Difference]: Start difference. First operand 6979 states and 24337 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:01,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:01,791 INFO L93 Difference]: Finished difference Result 9530 states and 32717 transitions. [2022-03-15 17:17:01,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 17:17:01,791 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:01,810 INFO L225 Difference]: With dead ends: 9530 [2022-03-15 17:17:01,810 INFO L226 Difference]: Without dead ends: 9487 [2022-03-15 17:17:01,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=2598, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 17:17:01,810 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 443 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 2729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:01,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1919 Invalid, 2729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:17:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2022-03-15 17:17:01,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 6991. [2022-03-15 17:17:01,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 6990 states have (on average 3.486123032904149) internal successors, (24368), 6990 states have internal predecessors, (24368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:01,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 24368 transitions. [2022-03-15 17:17:01,920 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 24368 transitions. Word has length 39 [2022-03-15 17:17:01,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:01,921 INFO L470 AbstractCegarLoop]: Abstraction has 6991 states and 24368 transitions. [2022-03-15 17:17:01,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 24368 transitions. [2022-03-15 17:17:01,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:01,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:01,931 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] [2022-03-15 17:17:01,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-15 17:17:01,931 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:01,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:01,931 INFO L85 PathProgramCache]: Analyzing trace with hash 492631478, now seen corresponding path program 247 times [2022-03-15 17:17:01,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:01,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394025323] [2022-03-15 17:17:01,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:01,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:02,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:02,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:02,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394025323] [2022-03-15 17:17:02,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394025323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:02,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:02,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:02,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36296535] [2022-03-15 17:17:02,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:02,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:02,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:02,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:02,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:02,152 INFO L87 Difference]: Start difference. First operand 6991 states and 24368 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:03,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:03,846 INFO L93 Difference]: Finished difference Result 9712 states and 33226 transitions. [2022-03-15 17:17:03,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-15 17:17:03,846 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:03,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:03,865 INFO L225 Difference]: With dead ends: 9712 [2022-03-15 17:17:03,866 INFO L226 Difference]: Without dead ends: 9669 [2022-03-15 17:17:03,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=302, Invalid=3120, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:17:03,866 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 461 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:03,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 2099 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:17:03,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9669 states. [2022-03-15 17:17:03,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9669 to 6987. [2022-03-15 17:17:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4866876610363584) internal successors, (24358), 6986 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:03,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24358 transitions. [2022-03-15 17:17:03,982 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24358 transitions. Word has length 39 [2022-03-15 17:17:03,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:03,982 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24358 transitions. [2022-03-15 17:17:03,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:03,983 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24358 transitions. [2022-03-15 17:17:03,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:03,993 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:03,993 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] [2022-03-15 17:17:03,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-15 17:17:03,994 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:03,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:03,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1645134966, now seen corresponding path program 248 times [2022-03-15 17:17:03,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:03,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266954304] [2022-03-15 17:17:03,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:03,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:04,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:04,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:04,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266954304] [2022-03-15 17:17:04,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266954304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:04,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:04,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:04,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571234595] [2022-03-15 17:17:04,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:04,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:04,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:04,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:04,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:04,210 INFO L87 Difference]: Start difference. First operand 6987 states and 24358 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:06,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:06,335 INFO L93 Difference]: Finished difference Result 10752 states and 36838 transitions. [2022-03-15 17:17:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-15 17:17:06,335 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:06,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:06,355 INFO L225 Difference]: With dead ends: 10752 [2022-03-15 17:17:06,355 INFO L226 Difference]: Without dead ends: 10692 [2022-03-15 17:17:06,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1221 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=398, Invalid=4158, Unknown=0, NotChecked=0, Total=4556 [2022-03-15 17:17:06,356 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 488 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 3260 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 3348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:06,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2441 Invalid, 3348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3260 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:17:06,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-03-15 17:17:06,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 6987. [2022-03-15 17:17:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4875465216146577) internal successors, (24364), 6986 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:06,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24364 transitions. [2022-03-15 17:17:06,466 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24364 transitions. Word has length 39 [2022-03-15 17:17:06,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:06,466 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24364 transitions. [2022-03-15 17:17:06,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:06,466 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24364 transitions. [2022-03-15 17:17:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:06,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:06,476 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] [2022-03-15 17:17:06,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-15 17:17:06,477 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:06,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:06,477 INFO L85 PathProgramCache]: Analyzing trace with hash -434431576, now seen corresponding path program 249 times [2022-03-15 17:17:06,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:06,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748844838] [2022-03-15 17:17:06,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:06,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:06,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:06,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:06,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748844838] [2022-03-15 17:17:06,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748844838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:06,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:06,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:17:06,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635683766] [2022-03-15 17:17:06,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:06,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:17:06,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:06,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:17:06,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:17:06,683 INFO L87 Difference]: Start difference. First operand 6987 states and 24364 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:08,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:08,482 INFO L93 Difference]: Finished difference Result 10732 states and 36775 transitions. [2022-03-15 17:17:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-15 17:17:08,483 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:08,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:08,504 INFO L225 Difference]: With dead ends: 10732 [2022-03-15 17:17:08,505 INFO L226 Difference]: Without dead ends: 10656 [2022-03-15 17:17:08,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=322, Invalid=3218, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:17:08,505 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 456 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 3020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:08,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2178 Invalid, 3020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:17:08,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10656 states. [2022-03-15 17:17:08,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10656 to 6999. [2022-03-15 17:17:08,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6999 states, 6998 states have (on average 3.4849957130608744) internal successors, (24388), 6998 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 24388 transitions. [2022-03-15 17:17:08,631 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 24388 transitions. Word has length 39 [2022-03-15 17:17:08,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:08,631 INFO L470 AbstractCegarLoop]: Abstraction has 6999 states and 24388 transitions. [2022-03-15 17:17:08,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:08,631 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 24388 transitions. [2022-03-15 17:17:08,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:08,641 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:08,642 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] [2022-03-15 17:17:08,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-15 17:17:08,642 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:08,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:08,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1452485188, now seen corresponding path program 250 times [2022-03-15 17:17:08,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:08,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677097460] [2022-03-15 17:17:08,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:08,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:08,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:08,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:08,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677097460] [2022-03-15 17:17:08,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677097460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:08,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:08,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:08,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430015635] [2022-03-15 17:17:08,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:08,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:08,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:08,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:08,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:08,887 INFO L87 Difference]: Start difference. First operand 6999 states and 24388 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:10,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:10,916 INFO L93 Difference]: Finished difference Result 10738 states and 36791 transitions. [2022-03-15 17:17:10,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-15 17:17:10,916 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:10,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:10,938 INFO L225 Difference]: With dead ends: 10738 [2022-03-15 17:17:10,938 INFO L226 Difference]: Without dead ends: 10668 [2022-03-15 17:17:10,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1123 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=373, Invalid=3917, Unknown=0, NotChecked=0, Total=4290 [2022-03-15 17:17:10,938 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 474 mSDsluCounter, 2582 mSDsCounter, 0 mSdLazyCounter, 3226 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 3312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:10,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2408 Invalid, 3312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3226 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:17:10,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10668 states. [2022-03-15 17:17:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 6987. [2022-03-15 17:17:11,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4866876610363584) internal successors, (24358), 6986 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24358 transitions. [2022-03-15 17:17:11,059 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24358 transitions. Word has length 39 [2022-03-15 17:17:11,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:11,059 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24358 transitions. [2022-03-15 17:17:11,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:11,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24358 transitions. [2022-03-15 17:17:11,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:11,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:11,069 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] [2022-03-15 17:17:11,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-15 17:17:11,069 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:11,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:11,069 INFO L85 PathProgramCache]: Analyzing trace with hash -976097318, now seen corresponding path program 251 times [2022-03-15 17:17:11,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:11,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43844511] [2022-03-15 17:17:11,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:11,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:11,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:11,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43844511] [2022-03-15 17:17:11,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43844511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:11,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:11,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:11,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589953356] [2022-03-15 17:17:11,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:11,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:11,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:11,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:11,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:11,287 INFO L87 Difference]: Start difference. First operand 6987 states and 24358 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:13,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:13,564 INFO L93 Difference]: Finished difference Result 10391 states and 35712 transitions. [2022-03-15 17:17:13,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-15 17:17:13,564 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:13,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:13,585 INFO L225 Difference]: With dead ends: 10391 [2022-03-15 17:17:13,585 INFO L226 Difference]: Without dead ends: 10327 [2022-03-15 17:17:13,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1643 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=443, Invalid=5257, Unknown=0, NotChecked=0, Total=5700 [2022-03-15 17:17:13,586 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 533 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 3272 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:13,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 2348 Invalid, 3367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3272 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:17:13,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10327 states. [2022-03-15 17:17:13,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10327 to 6986. [2022-03-15 17:17:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6986 states, 6985 states have (on average 3.4866141732283467) internal successors, (24354), 6985 states have internal predecessors, (24354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 24354 transitions. [2022-03-15 17:17:13,702 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 24354 transitions. Word has length 39 [2022-03-15 17:17:13,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:13,702 INFO L470 AbstractCegarLoop]: Abstraction has 6986 states and 24354 transitions. [2022-03-15 17:17:13,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:13,702 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 24354 transitions. [2022-03-15 17:17:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:13,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:13,712 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] [2022-03-15 17:17:13,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-15 17:17:13,712 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:13,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:13,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1781450748, now seen corresponding path program 252 times [2022-03-15 17:17:13,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:13,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143667157] [2022-03-15 17:17:13,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:13,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:13,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:13,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143667157] [2022-03-15 17:17:13,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143667157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:13,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:13,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:13,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447825693] [2022-03-15 17:17:13,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:13,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:13,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:13,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:13,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:13,955 INFO L87 Difference]: Start difference. First operand 6986 states and 24354 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:15,395 INFO L93 Difference]: Finished difference Result 9474 states and 32586 transitions. [2022-03-15 17:17:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 17:17:15,396 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:15,414 INFO L225 Difference]: With dead ends: 9474 [2022-03-15 17:17:15,414 INFO L226 Difference]: Without dead ends: 9431 [2022-03-15 17:17:15,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=228, Invalid=2322, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 17:17:15,415 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 421 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:15,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1943 Invalid, 2748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:17:15,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9431 states. [2022-03-15 17:17:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9431 to 7001. [2022-03-15 17:17:15,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7001 states, 7000 states have (on average 3.4844285714285714) internal successors, (24391), 7000 states have internal predecessors, (24391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 24391 transitions. [2022-03-15 17:17:15,584 INFO L78 Accepts]: Start accepts. Automaton has 7001 states and 24391 transitions. Word has length 39 [2022-03-15 17:17:15,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:15,584 INFO L470 AbstractCegarLoop]: Abstraction has 7001 states and 24391 transitions. [2022-03-15 17:17:15,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 7001 states and 24391 transitions. [2022-03-15 17:17:15,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:15,594 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:15,594 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] [2022-03-15 17:17:15,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-15 17:17:15,594 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:15,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:15,595 INFO L85 PathProgramCache]: Analyzing trace with hash -763409412, now seen corresponding path program 253 times [2022-03-15 17:17:15,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:15,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643267141] [2022-03-15 17:17:15,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:15,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:15,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:15,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643267141] [2022-03-15 17:17:15,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643267141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:15,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:15,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:15,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745960031] [2022-03-15 17:17:15,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:15,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:15,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:15,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:15,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:15,811 INFO L87 Difference]: Start difference. First operand 7001 states and 24391 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:17,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:17,294 INFO L93 Difference]: Finished difference Result 9425 states and 32468 transitions. [2022-03-15 17:17:17,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 17:17:17,295 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:17,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:17,313 INFO L225 Difference]: With dead ends: 9425 [2022-03-15 17:17:17,313 INFO L226 Difference]: Without dead ends: 9374 [2022-03-15 17:17:17,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=245, Invalid=2511, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 17:17:17,314 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 426 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:17,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1926 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:17:17,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9374 states. [2022-03-15 17:17:17,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9374 to 6995. [2022-03-15 17:17:17,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6995 states, 6994 states have (on average 3.4851301115241635) internal successors, (24375), 6994 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:17,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6995 states to 6995 states and 24375 transitions. [2022-03-15 17:17:17,423 INFO L78 Accepts]: Start accepts. Automaton has 6995 states and 24375 transitions. Word has length 39 [2022-03-15 17:17:17,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:17,423 INFO L470 AbstractCegarLoop]: Abstraction has 6995 states and 24375 transitions. [2022-03-15 17:17:17,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:17,423 INFO L276 IsEmpty]: Start isEmpty. Operand 6995 states and 24375 transitions. [2022-03-15 17:17:17,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:17,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:17,433 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] [2022-03-15 17:17:17,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-15 17:17:17,433 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:17,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:17,434 INFO L85 PathProgramCache]: Analyzing trace with hash -146191010, now seen corresponding path program 254 times [2022-03-15 17:17:17,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:17,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635147405] [2022-03-15 17:17:17,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:17,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:17,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:17,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635147405] [2022-03-15 17:17:17,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635147405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:17,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:17,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:17,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292607540] [2022-03-15 17:17:17,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:17,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:17,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:17,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:17,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:17,651 INFO L87 Difference]: Start difference. First operand 6995 states and 24375 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:19,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:19,736 INFO L93 Difference]: Finished difference Result 10767 states and 36879 transitions. [2022-03-15 17:17:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-15 17:17:19,736 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:19,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:19,757 INFO L225 Difference]: With dead ends: 10767 [2022-03-15 17:17:19,757 INFO L226 Difference]: Without dead ends: 10721 [2022-03-15 17:17:19,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1215 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=376, Invalid=4180, Unknown=0, NotChecked=0, Total=4556 [2022-03-15 17:17:19,757 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 481 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 3368 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 3432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:19,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 2467 Invalid, 3432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3368 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:17:19,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2022-03-15 17:17:19,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 7002. [2022-03-15 17:17:19,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.483788030281388) internal successors, (24390), 7001 states have internal predecessors, (24390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24390 transitions. [2022-03-15 17:17:19,877 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24390 transitions. Word has length 39 [2022-03-15 17:17:19,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:19,877 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24390 transitions. [2022-03-15 17:17:19,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:19,878 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24390 transitions. [2022-03-15 17:17:19,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:19,888 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:19,888 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] [2022-03-15 17:17:19,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-15 17:17:19,888 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:19,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:19,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1581258500, now seen corresponding path program 255 times [2022-03-15 17:17:19,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:19,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749070260] [2022-03-15 17:17:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:19,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:20,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:20,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749070260] [2022-03-15 17:17:20,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749070260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:20,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:20,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:20,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809697401] [2022-03-15 17:17:20,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:20,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:20,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:20,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:20,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:20,108 INFO L87 Difference]: Start difference. First operand 7002 states and 24390 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:21,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:21,597 INFO L93 Difference]: Finished difference Result 9433 states and 32482 transitions. [2022-03-15 17:17:21,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 17:17:21,598 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:21,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:21,617 INFO L225 Difference]: With dead ends: 9433 [2022-03-15 17:17:21,617 INFO L226 Difference]: Without dead ends: 9378 [2022-03-15 17:17:21,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=247, Invalid=2509, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 17:17:21,618 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 424 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:21,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 1905 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:17:21,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9378 states. [2022-03-15 17:17:21,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9378 to 6999. [2022-03-15 17:17:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6999 states, 6998 states have (on average 3.4841383252357816) internal successors, (24382), 6998 states have internal predecessors, (24382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:21,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 24382 transitions. [2022-03-15 17:17:21,771 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 24382 transitions. Word has length 39 [2022-03-15 17:17:21,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:21,771 INFO L470 AbstractCegarLoop]: Abstraction has 6999 states and 24382 transitions. [2022-03-15 17:17:21,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:21,772 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 24382 transitions. [2022-03-15 17:17:21,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:21,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:21,783 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] [2022-03-15 17:17:21,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-15 17:17:21,783 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:21,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash 2133092086, now seen corresponding path program 256 times [2022-03-15 17:17:21,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:21,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275801220] [2022-03-15 17:17:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:21,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:21,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:21,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275801220] [2022-03-15 17:17:21,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275801220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:21,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:21,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-15 17:17:21,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132748497] [2022-03-15 17:17:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:21,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 17:17:21,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 17:17:21,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-15 17:17:21,995 INFO L87 Difference]: Start difference. First operand 6999 states and 24382 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:23,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:23,794 INFO L93 Difference]: Finished difference Result 10639 states and 36538 transitions. [2022-03-15 17:17:23,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-15 17:17:23,795 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:23,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:23,818 INFO L225 Difference]: With dead ends: 10639 [2022-03-15 17:17:23,818 INFO L226 Difference]: Without dead ends: 10563 [2022-03-15 17:17:23,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=311, Invalid=3111, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 17:17:23,819 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 438 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:23,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 2203 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 17:17:23,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2022-03-15 17:17:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 7013. [2022-03-15 17:17:23,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7013 states, 7012 states have (on average 3.481460353679407) internal successors, (24412), 7012 states have internal predecessors, (24412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:23,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7013 states to 7013 states and 24412 transitions. [2022-03-15 17:17:23,946 INFO L78 Accepts]: Start accepts. Automaton has 7013 states and 24412 transitions. Word has length 39 [2022-03-15 17:17:23,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:23,946 INFO L470 AbstractCegarLoop]: Abstraction has 7013 states and 24412 transitions. [2022-03-15 17:17:23,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 7013 states and 24412 transitions. [2022-03-15 17:17:23,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:23,958 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:23,958 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] [2022-03-15 17:17:23,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-15 17:17:23,959 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:23,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:23,959 INFO L85 PathProgramCache]: Analyzing trace with hash 585169752, now seen corresponding path program 257 times [2022-03-15 17:17:23,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:23,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103475267] [2022-03-15 17:17:23,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:23,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:24,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:24,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103475267] [2022-03-15 17:17:24,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103475267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:24,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:24,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:24,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608342866] [2022-03-15 17:17:24,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:24,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:24,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:24,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:24,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:24,189 INFO L87 Difference]: Start difference. First operand 7013 states and 24412 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:26,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:26,217 INFO L93 Difference]: Finished difference Result 10720 states and 36735 transitions. [2022-03-15 17:17:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-15 17:17:26,217 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:26,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:26,238 INFO L225 Difference]: With dead ends: 10720 [2022-03-15 17:17:26,238 INFO L226 Difference]: Without dead ends: 10674 [2022-03-15 17:17:26,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=353, Invalid=3807, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 17:17:26,239 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 472 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 3402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:26,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 2421 Invalid, 3402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3339 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 17:17:26,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2022-03-15 17:17:26,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 7013. [2022-03-15 17:17:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7013 states, 7012 states have (on average 3.481460353679407) internal successors, (24412), 7012 states have internal predecessors, (24412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7013 states to 7013 states and 24412 transitions. [2022-03-15 17:17:26,361 INFO L78 Accepts]: Start accepts. Automaton has 7013 states and 24412 transitions. Word has length 39 [2022-03-15 17:17:26,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:26,361 INFO L470 AbstractCegarLoop]: Abstraction has 7013 states and 24412 transitions. [2022-03-15 17:17:26,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 7013 states and 24412 transitions. [2022-03-15 17:17:26,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:26,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:26,372 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] [2022-03-15 17:17:26,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-15 17:17:26,372 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:26,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:26,372 INFO L85 PathProgramCache]: Analyzing trace with hash -849897738, now seen corresponding path program 258 times [2022-03-15 17:17:26,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:26,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808522391] [2022-03-15 17:17:26,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:26,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:26,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:26,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808522391] [2022-03-15 17:17:26,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808522391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:26,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:26,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:26,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333672030] [2022-03-15 17:17:26,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:26,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:26,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:26,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:26,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:26,590 INFO L87 Difference]: Start difference. First operand 7013 states and 24412 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:28,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:28,043 INFO L93 Difference]: Finished difference Result 9331 states and 32218 transitions. [2022-03-15 17:17:28,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 17:17:28,043 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:28,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:28,062 INFO L225 Difference]: With dead ends: 9331 [2022-03-15 17:17:28,062 INFO L226 Difference]: Without dead ends: 9259 [2022-03-15 17:17:28,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=2414, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 17:17:28,062 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 413 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 2722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:28,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1904 Invalid, 2722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:17:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2022-03-15 17:17:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 6993. [2022-03-15 17:17:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6993 states, 6992 states have (on average 3.4844107551487413) internal successors, (24363), 6992 states have internal predecessors, (24363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:28,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6993 states to 6993 states and 24363 transitions. [2022-03-15 17:17:28,202 INFO L78 Accepts]: Start accepts. Automaton has 6993 states and 24363 transitions. Word has length 39 [2022-03-15 17:17:28,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:28,203 INFO L470 AbstractCegarLoop]: Abstraction has 6993 states and 24363 transitions. [2022-03-15 17:17:28,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:28,203 INFO L276 IsEmpty]: Start isEmpty. Operand 6993 states and 24363 transitions. [2022-03-15 17:17:28,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:28,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:28,213 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] [2022-03-15 17:17:28,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-15 17:17:28,213 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:28,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:28,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1394534630, now seen corresponding path program 259 times [2022-03-15 17:17:28,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:28,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267265958] [2022-03-15 17:17:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:28,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:28,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:28,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267265958] [2022-03-15 17:17:28,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267265958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:28,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:28,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:28,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772591929] [2022-03-15 17:17:28,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:28,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:28,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:28,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:28,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:28,431 INFO L87 Difference]: Start difference. First operand 6993 states and 24363 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:30,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:17:30,111 INFO L93 Difference]: Finished difference Result 9524 states and 32686 transitions. [2022-03-15 17:17:30,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-15 17:17:30,111 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-03-15 17:17:30,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:17:30,130 INFO L225 Difference]: With dead ends: 9524 [2022-03-15 17:17:30,130 INFO L226 Difference]: Without dead ends: 9473 [2022-03-15 17:17:30,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=319, Invalid=3221, Unknown=0, NotChecked=0, Total=3540 [2022-03-15 17:17:30,131 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 463 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:30,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1942 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2724 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 17:17:30,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9473 states. [2022-03-15 17:17:30,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9473 to 7006. [2022-03-15 17:17:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 7005 states have (on average 3.483083511777302) internal successors, (24399), 7005 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 24399 transitions. [2022-03-15 17:17:30,242 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 24399 transitions. Word has length 39 [2022-03-15 17:17:30,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:17:30,242 INFO L470 AbstractCegarLoop]: Abstraction has 7006 states and 24399 transitions. [2022-03-15 17:17:30,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:17:30,242 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 24399 transitions. [2022-03-15 17:17:30,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-15 17:17:30,252 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:17:30,252 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] [2022-03-15 17:17:30,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-15 17:17:30,253 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 17:17:30,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:17:30,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1374385896, now seen corresponding path program 260 times [2022-03-15 17:17:30,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:17:30,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312844604] [2022-03-15 17:17:30,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:17:30,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:17:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:17:30,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:17:30,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:17:30,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312844604] [2022-03-15 17:17:30,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312844604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:17:30,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:17:30,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 17:17:30,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356079458] [2022-03-15 17:17:30,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 17:17:30,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 17:17:30,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:17:30,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 17:17:30,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-15 17:17:30,470 INFO L87 Difference]: Start difference. First operand 7006 states and 24399 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-15 17:17:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 17:17:31,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=1190, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 17:17:31,403 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 217 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1770 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 17:17:31,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 1130 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 17:17:31,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-15 17:17:31,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-15 17:17:31,404 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (7006states) and FLOYD_HOARE automaton (currently 30 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 known predicates. [2022-03-15 17:17:31,405 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-15 17:17:31,405 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-15 17:17:31,405 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-15 17:17:31,405 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-15 17:17:31,408 INFO L732 BasicCegarLoop]: Path program histogram: [260] [2022-03-15 17:17:31,411 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 17:17:31,411 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 17:17:31,411 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 17:17:31,413 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 05:17:31 BasicIcfg [2022-03-15 17:17:31,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 17:17:31,413 INFO L158 Benchmark]: Toolchain (without parser) took 689728.82ms. Allocated memory was 181.4MB in the beginning and 1.1GB in the end (delta: 902.8MB). Free memory was 140.5MB in the beginning and 748.3MB in the end (delta: -607.8MB). Peak memory consumption was 297.0MB. Max. memory is 8.0GB. [2022-03-15 17:17:31,413 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 17:17:31,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.96ms. Allocated memory is still 181.4MB. Free memory was 140.4MB in the beginning and 139.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 17:17:31,413 INFO L158 Benchmark]: Boogie Preprocessor took 11.27ms. Allocated memory is still 181.4MB. Free memory was 138.9MB in the beginning and 138.0MB in the end (delta: 824.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 17:17:31,413 INFO L158 Benchmark]: RCFGBuilder took 184.68ms. Allocated memory is still 181.4MB. Free memory was 137.9MB in the beginning and 128.7MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-15 17:17:31,414 INFO L158 Benchmark]: TraceAbstraction took 689498.22ms. Allocated memory was 181.4MB in the beginning and 1.1GB in the end (delta: 902.8MB). Free memory was 128.2MB in the beginning and 748.3MB in the end (delta: -620.1MB). Peak memory consumption was 284.5MB. Max. memory is 8.0GB. [2022-03-15 17:17:31,414 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 181.4MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.96ms. Allocated memory is still 181.4MB. Free memory was 140.4MB in the beginning and 139.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.27ms. Allocated memory is still 181.4MB. Free memory was 138.9MB in the beginning and 138.0MB in the end (delta: 824.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 184.68ms. Allocated memory is still 181.4MB. Free memory was 137.9MB in the beginning and 128.7MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 689498.22ms. Allocated memory was 181.4MB in the beginning and 1.1GB in the end (delta: 902.8MB). Free memory was 128.2MB in the beginning and 748.3MB in the end (delta: -620.1MB). Peak memory consumption was 284.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (7006states) and FLOYD_HOARE automaton (currently 30 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 known predicates. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7006states) and FLOYD_HOARE automaton (currently 30 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 known predicates. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7006states) and FLOYD_HOARE automaton (currently 30 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 known predicates. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7006states) and FLOYD_HOARE automaton (currently 30 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 known predicates. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7006states) and FLOYD_HOARE automaton (currently 30 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 82 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 689.4s, OverallIterations: 260, TraceHistogramMax: 1, PathProgramHistogramMax: 260, EmptinessCheckTime: 2.3s, AutomataDifference: 594.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124614 SdHoareTripleChecker+Valid, 295.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124614 mSDsluCounter, 628258 SdHoareTripleChecker+Invalid, 247.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 674161 mSDsCounter, 20718 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 857049 IncrementalHoareTripleChecker+Invalid, 877767 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20718 mSolverCounterUnsat, 62058 mSDtfsCounter, 857049 mSolverCounterSat, 2.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18852 GetRequests, 314 SyntacticMatches, 539 SemanticMatches, 17998 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441858 ImplicationChecksByTransitivity, 309.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7084occurred in iteration=236, InterpolantAutomatonStates: 17522, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 28.8s AutomataMinimizationTime, 259 MinimizatonAttempts, 904736 StatesRemovedByMinimization, 257 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 61.5s InterpolantComputationTime, 10140 NumberOfCodeBlocks, 10140 NumberOfCodeBlocksAsserted, 260 NumberOfCheckSat, 9880 ConstructedInterpolants, 0 QuantifiedInterpolants, 152535 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 260 InterpolantComputations, 260 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