/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/mcr/example_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 17:07:27,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 17:07:27,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 17:07:27,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 17:07:27,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 17:07:27,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 17:07:27,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 17:07:27,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-01 17:07:27,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 17:07:27,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 17:07:27,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 17:07:27,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 17:07:27,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 17:07:27,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 17:07:27,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 17:07:27,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 17:07:27,177 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 17:07:27,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 17:07:27,178 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 17:07:27,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 17:07:27,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 17:07:27,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 17:07:27,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 17:07:27,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 17:07:27,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 17:07:27,178 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 17:07:27,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 17:07:27,179 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 17:07:27,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 17:07:27,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 17:07:27,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 17:07:27,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 17:07:27,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 17:07:27,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 17:07:27,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 17:07:27,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 17:07:27,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 17:07:27,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 17:07:27,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 17:07:27,180 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 17:07:27,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 17:07:27,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 17:07:27,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 17:07:27,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 17:07:27,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 17:07:27,391 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 17:07:27,395 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 17:07:27,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl [2022-03-01 17:07:27,396 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl' [2022-03-01 17:07:27,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 17:07:27,417 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 17:07:27,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 17:07:27,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 17:07:27,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 17:07:27,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,436 INFO L137 Inliner]: procedures = 9, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 17:07:27,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 17:07:27,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 17:07:27,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 17:07:27,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 17:07:27,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 17:07:27,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 17:07:27,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 17:07:27,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 17:07:27,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/1) ... [2022-03-01 17:07:27,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 17:07:27,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 17:07:27,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-01 17:07:27,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-01 17:07:27,495 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-03-01 17:07:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-03-01 17:07:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-03-01 17:07:27,495 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-03-01 17:07:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-03-01 17:07:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-03-01 17:07:27,496 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-03-01 17:07:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-03-01 17:07:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-03-01 17:07:27,496 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-03-01 17:07:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-03-01 17:07:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-03-01 17:07:27,496 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-03-01 17:07:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-03-01 17:07:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-03-01 17:07:27,496 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 17:07:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 17:07:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 17:07:27,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-03-01 17:07:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-03-01 17:07:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-03-01 17:07:27,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-03-01 17:07:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-03-01 17:07:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-03-01 17:07:27,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-03-01 17:07:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-03-01 17:07:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-03-01 17:07:27,498 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 17:07:27,530 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 17:07:27,531 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 17:07:27,605 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 17:07:27,624 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 17:07:27,625 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 17:07:27,626 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 05:07:27 BoogieIcfgContainer [2022-03-01 17:07:27,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 17:07:27,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 17:07:27,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 17:07:27,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 17:07:27,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:27" (1/2) ... [2022-03-01 17:07:27,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440fd6c1 and model type example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 05:07:27, skipping insertion in model container [2022-03-01 17:07:27,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 05:07:27" (2/2) ... [2022-03-01 17:07:27,640 INFO L111 eAbstractionObserver]: Analyzing ICFG example_8.bpl [2022-03-01 17:07:27,643 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 17:07:27,644 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 17:07:27,644 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 17:07:27,644 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 17:07:27,711 INFO L148 ThreadInstanceAdder]: Constructed 64 joinOtherThreadTransitions. [2022-03-01 17:07:27,741 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 17:07:27,746 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 17:07:27,746 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-03-01 17:07:27,754 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 99 transitions, 430 flow [2022-03-01 17:07:31,397 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 68817 states, 68816 states have (on average 5.968277726110207) internal successors, (410713), 68816 states have internal predecessors, (410713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 68817 states, 68816 states have (on average 5.968277726110207) internal successors, (410713), 68816 states have internal predecessors, (410713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:07:32,173 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:32,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:32,174 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:07:32,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:32,178 INFO L85 PathProgramCache]: Analyzing trace with hash -184179927, now seen corresponding path program 1 times [2022-03-01 17:07:32,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:32,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315253030] [2022-03-01 17:07:32,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:32,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:32,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:32,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:32,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315253030] [2022-03-01 17:07:32,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315253030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:32,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:32,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:07:32,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164246639] [2022-03-01 17:07:32,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:32,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:07:32,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:32,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:07:32,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:32,591 INFO L87 Difference]: Start difference. First operand has 68817 states, 68816 states have (on average 5.968277726110207) internal successors, (410713), 68816 states have internal predecessors, (410713), 0 states have call successors, (0), 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 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:33,564 INFO L93 Difference]: Finished difference Result 52434 states and 308314 transitions. [2022-03-01 17:07:33,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:07:33,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:07:33,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:34,151 INFO L225 Difference]: With dead ends: 52434 [2022-03-01 17:07:34,151 INFO L226 Difference]: Without dead ends: 52434 [2022-03-01 17:07:34,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:34,155 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 65 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:34,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 45 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:34,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52434 states. [2022-03-01 17:07:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52434 to 52434. [2022-03-01 17:07:37,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52434 states, 52433 states have (on average 5.880151812789656) internal successors, (308314), 52433 states have internal predecessors, (308314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52434 states to 52434 states and 308314 transitions. [2022-03-01 17:07:38,160 INFO L78 Accepts]: Start accepts. Automaton has 52434 states and 308314 transitions. Word has length 33 [2022-03-01 17:07:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:38,161 INFO L470 AbstractCegarLoop]: Abstraction has 52434 states and 308314 transitions. [2022-03-01 17:07:38,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 52434 states and 308314 transitions. [2022-03-01 17:07:38,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:07:38,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:38,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:38,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 17:07:38,664 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:07:38,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1582502635, now seen corresponding path program 1 times [2022-03-01 17:07:38,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:38,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714937254] [2022-03-01 17:07:38,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:38,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:38,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:38,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714937254] [2022-03-01 17:07:38,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714937254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:38,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:38,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:07:38,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852204008] [2022-03-01 17:07:38,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:38,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:07:38,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:38,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:07:38,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:38,731 INFO L87 Difference]: Start difference. First operand 52434 states and 308314 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:39,404 INFO L93 Difference]: Finished difference Result 40203 states and 232687 transitions. [2022-03-01 17:07:39,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:07:39,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:07:39,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:39,912 INFO L225 Difference]: With dead ends: 40203 [2022-03-01 17:07:39,913 INFO L226 Difference]: Without dead ends: 40203 [2022-03-01 17:07:39,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:39,916 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 50 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:39,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 37 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:40,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40203 states. [2022-03-01 17:07:41,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40203 to 40203. [2022-03-01 17:07:41,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40203 states, 40202 states have (on average 5.787945873339635) internal successors, (232687), 40202 states have internal predecessors, (232687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40203 states to 40203 states and 232687 transitions. [2022-03-01 17:07:41,912 INFO L78 Accepts]: Start accepts. Automaton has 40203 states and 232687 transitions. Word has length 33 [2022-03-01 17:07:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:41,913 INFO L470 AbstractCegarLoop]: Abstraction has 40203 states and 232687 transitions. [2022-03-01 17:07:41,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 40203 states and 232687 transitions. [2022-03-01 17:07:42,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:07:42,050 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:42,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:42,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 17:07:42,051 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:07:42,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:42,052 INFO L85 PathProgramCache]: Analyzing trace with hash 876381047, now seen corresponding path program 1 times [2022-03-01 17:07:42,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:42,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598216080] [2022-03-01 17:07:42,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:42,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:42,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:42,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598216080] [2022-03-01 17:07:42,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598216080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:42,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:42,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:07:42,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459384176] [2022-03-01 17:07:42,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:42,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:07:42,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:42,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:07:42,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:42,076 INFO L87 Difference]: Start difference. First operand 40203 states and 232687 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:42,583 INFO L93 Difference]: Finished difference Result 30942 states and 176500 transitions. [2022-03-01 17:07:42,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:07:42,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:07:42,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:42,747 INFO L225 Difference]: With dead ends: 30942 [2022-03-01 17:07:42,747 INFO L226 Difference]: Without dead ends: 30942 [2022-03-01 17:07:42,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:42,754 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 35 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:42,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 41 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:42,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30942 states. [2022-03-01 17:07:43,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30942 to 30942. [2022-03-01 17:07:44,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30942 states, 30941 states have (on average 5.704405158204325) internal successors, (176500), 30941 states have internal predecessors, (176500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30942 states to 30942 states and 176500 transitions. [2022-03-01 17:07:44,153 INFO L78 Accepts]: Start accepts. Automaton has 30942 states and 176500 transitions. Word has length 33 [2022-03-01 17:07:44,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:44,154 INFO L470 AbstractCegarLoop]: Abstraction has 30942 states and 176500 transitions. [2022-03-01 17:07:44,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,154 INFO L276 IsEmpty]: Start isEmpty. Operand 30942 states and 176500 transitions. [2022-03-01 17:07:44,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:07:44,249 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:44,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:44,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 17:07:44,249 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:07:44,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:44,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1972791627, now seen corresponding path program 1 times [2022-03-01 17:07:44,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:44,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012689913] [2022-03-01 17:07:44,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:44,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:44,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:44,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:44,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012689913] [2022-03-01 17:07:44,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012689913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:44,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:44,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:07:44,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408730181] [2022-03-01 17:07:44,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:44,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:07:44,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:44,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:07:44,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:07:44,922 INFO L87 Difference]: Start difference. First operand 30942 states and 176500 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:46,300 INFO L93 Difference]: Finished difference Result 80063 states and 437278 transitions. [2022-03-01 17:07:46,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:07:46,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:07:46,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:47,064 INFO L225 Difference]: With dead ends: 80063 [2022-03-01 17:07:47,064 INFO L226 Difference]: Without dead ends: 77464 [2022-03-01 17:07:47,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:07:47,065 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 396 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:47,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 319 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:07:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77464 states. [2022-03-01 17:07:48,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77464 to 31417. [2022-03-01 17:07:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31417 states, 31416 states have (on average 5.698147440794499) internal successors, (179013), 31416 states have internal predecessors, (179013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31417 states to 31417 states and 179013 transitions. [2022-03-01 17:07:49,435 INFO L78 Accepts]: Start accepts. Automaton has 31417 states and 179013 transitions. Word has length 33 [2022-03-01 17:07:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:49,435 INFO L470 AbstractCegarLoop]: Abstraction has 31417 states and 179013 transitions. [2022-03-01 17:07:49,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,438 INFO L276 IsEmpty]: Start isEmpty. Operand 31417 states and 179013 transitions. [2022-03-01 17:07:49,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:07:49,548 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:49,548 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] [2022-03-01 17:07:49,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 17:07:49,548 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:07:49,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:49,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1849214475, now seen corresponding path program 2 times [2022-03-01 17:07:49,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:49,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837806346] [2022-03-01 17:07:49,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:49,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:49,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:49,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837806346] [2022-03-01 17:07:49,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837806346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:49,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:49,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:07:49,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483166180] [2022-03-01 17:07:49,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:49,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:07:49,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:49,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:07:49,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:07:49,844 INFO L87 Difference]: Start difference. First operand 31417 states and 179013 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:51,538 INFO L93 Difference]: Finished difference Result 80063 states and 437062 transitions. [2022-03-01 17:07:51,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:07:51,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:07:51,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:52,017 INFO L225 Difference]: With dead ends: 80063 [2022-03-01 17:07:52,018 INFO L226 Difference]: Without dead ends: 77248 [2022-03-01 17:07:52,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:07:52,019 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 413 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:52,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 281 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:07:52,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77248 states. [2022-03-01 17:07:53,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77248 to 31201. [2022-03-01 17:07:53,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31201 states, 31200 states have (on average 5.702980769230769) internal successors, (177933), 31200 states have internal predecessors, (177933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31201 states to 31201 states and 177933 transitions. [2022-03-01 17:07:54,232 INFO L78 Accepts]: Start accepts. Automaton has 31201 states and 177933 transitions. Word has length 33 [2022-03-01 17:07:54,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:54,232 INFO L470 AbstractCegarLoop]: Abstraction has 31201 states and 177933 transitions. [2022-03-01 17:07:54,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,232 INFO L276 IsEmpty]: Start isEmpty. Operand 31201 states and 177933 transitions. [2022-03-01 17:07:54,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:07:54,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:54,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:54,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 17:07:54,349 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:07:54,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:54,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1593320203, now seen corresponding path program 3 times [2022-03-01 17:07:54,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:54,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800088598] [2022-03-01 17:07:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:54,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:54,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:54,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:54,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800088598] [2022-03-01 17:07:54,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800088598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:54,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:54,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:07:54,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485982863] [2022-03-01 17:07:54,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:54,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:07:54,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:54,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:07:54,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:07:54,652 INFO L87 Difference]: Start difference. First operand 31201 states and 177933 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:56,119 INFO L93 Difference]: Finished difference Result 80690 states and 440557 transitions. [2022-03-01 17:07:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:07:56,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:07:56,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:56,801 INFO L225 Difference]: With dead ends: 80690 [2022-03-01 17:07:56,801 INFO L226 Difference]: Without dead ends: 78091 [2022-03-01 17:07:56,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:07:56,802 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 380 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:56,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 279 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:07:56,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78091 states. [2022-03-01 17:07:58,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78091 to 31589. [2022-03-01 17:07:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31589 states, 31588 states have (on average 5.69092693427884) internal successors, (179765), 31588 states have internal predecessors, (179765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31589 states to 31589 states and 179765 transitions. [2022-03-01 17:07:58,835 INFO L78 Accepts]: Start accepts. Automaton has 31589 states and 179765 transitions. Word has length 33 [2022-03-01 17:07:58,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:58,835 INFO L470 AbstractCegarLoop]: Abstraction has 31589 states and 179765 transitions. [2022-03-01 17:07:58,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,836 INFO L276 IsEmpty]: Start isEmpty. Operand 31589 states and 179765 transitions. [2022-03-01 17:07:59,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:07:59,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:59,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:59,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 17:07:59,266 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:07:59,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1583767349, now seen corresponding path program 4 times [2022-03-01 17:07:59,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:59,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229098468] [2022-03-01 17:07:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:59,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:59,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:59,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229098468] [2022-03-01 17:07:59,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229098468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:59,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:59,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:07:59,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505742470] [2022-03-01 17:07:59,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:59,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:07:59,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:59,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:07:59,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:07:59,554 INFO L87 Difference]: Start difference. First operand 31589 states and 179765 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:00,880 INFO L93 Difference]: Finished difference Result 81145 states and 442652 transitions. [2022-03-01 17:08:00,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:00,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:00,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:01,603 INFO L225 Difference]: With dead ends: 81145 [2022-03-01 17:08:01,604 INFO L226 Difference]: Without dead ends: 77703 [2022-03-01 17:08:01,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:01,604 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 374 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:01,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 292 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:08:01,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77703 states. [2022-03-01 17:08:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77703 to 31201. [2022-03-01 17:08:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31201 states, 31200 states have (on average 5.69849358974359) internal successors, (177793), 31200 states have internal predecessors, (177793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31201 states to 31201 states and 177793 transitions. [2022-03-01 17:08:03,449 INFO L78 Accepts]: Start accepts. Automaton has 31201 states and 177793 transitions. Word has length 33 [2022-03-01 17:08:03,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:03,449 INFO L470 AbstractCegarLoop]: Abstraction has 31201 states and 177793 transitions. [2022-03-01 17:08:03,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,450 INFO L276 IsEmpty]: Start isEmpty. Operand 31201 states and 177793 transitions. [2022-03-01 17:08:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:03,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:03,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:03,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 17:08:03,536 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:03,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1721374675, now seen corresponding path program 5 times [2022-03-01 17:08:03,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:03,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887305164] [2022-03-01 17:08:03,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:03,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:03,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:03,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887305164] [2022-03-01 17:08:03,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887305164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:03,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:03,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:03,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139109029] [2022-03-01 17:08:03,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:03,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:03,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:03,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:03,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:03,783 INFO L87 Difference]: Start difference. First operand 31201 states and 177793 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:05,242 INFO L93 Difference]: Finished difference Result 80690 states and 440417 transitions. [2022-03-01 17:08:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:05,243 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:05,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:06,115 INFO L225 Difference]: With dead ends: 80690 [2022-03-01 17:08:06,115 INFO L226 Difference]: Without dead ends: 78091 [2022-03-01 17:08:06,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:06,116 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 431 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:06,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 275 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:08:06,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78091 states. [2022-03-01 17:08:08,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78091 to 31589. [2022-03-01 17:08:08,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31589 states, 31588 states have (on average 5.686494871470178) internal successors, (179625), 31588 states have internal predecessors, (179625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31589 states to 31589 states and 179625 transitions. [2022-03-01 17:08:08,288 INFO L78 Accepts]: Start accepts. Automaton has 31589 states and 179625 transitions. Word has length 33 [2022-03-01 17:08:08,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:08,288 INFO L470 AbstractCegarLoop]: Abstraction has 31589 states and 179625 transitions. [2022-03-01 17:08:08,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 31589 states and 179625 transitions. [2022-03-01 17:08:08,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:08,377 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:08,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:08,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 17:08:08,378 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:08,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:08,378 INFO L85 PathProgramCache]: Analyzing trace with hash 5402677, now seen corresponding path program 6 times [2022-03-01 17:08:08,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:08,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178358845] [2022-03-01 17:08:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:08,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:08,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:08,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178358845] [2022-03-01 17:08:08,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178358845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:08,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:08,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:08,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128065312] [2022-03-01 17:08:08,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:08,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:08,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:08,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:08,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:08,871 INFO L87 Difference]: Start difference. First operand 31589 states and 179625 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:10,051 INFO L93 Difference]: Finished difference Result 81145 states and 442512 transitions. [2022-03-01 17:08:10,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:10,051 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:10,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:10,471 INFO L225 Difference]: With dead ends: 81145 [2022-03-01 17:08:10,471 INFO L226 Difference]: Without dead ends: 77563 [2022-03-01 17:08:10,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:10,472 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 407 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:10,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 286 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:08:10,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77563 states. [2022-03-01 17:08:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77563 to 31061. [2022-03-01 17:08:12,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31061 states, 31060 states have (on average 5.703960077269801) internal successors, (177165), 31060 states have internal predecessors, (177165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31061 states to 31061 states and 177165 transitions. [2022-03-01 17:08:12,510 INFO L78 Accepts]: Start accepts. Automaton has 31061 states and 177165 transitions. Word has length 33 [2022-03-01 17:08:12,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:12,511 INFO L470 AbstractCegarLoop]: Abstraction has 31061 states and 177165 transitions. [2022-03-01 17:08:12,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,511 INFO L276 IsEmpty]: Start isEmpty. Operand 31061 states and 177165 transitions. [2022-03-01 17:08:12,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:12,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:12,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:12,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 17:08:12,602 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:12,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash 771401491, now seen corresponding path program 7 times [2022-03-01 17:08:12,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:12,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309599598] [2022-03-01 17:08:12,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:12,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:12,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:12,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:12,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309599598] [2022-03-01 17:08:12,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309599598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:12,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:12,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:12,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99115425] [2022-03-01 17:08:12,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:12,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:12,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:12,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:12,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:12,828 INFO L87 Difference]: Start difference. First operand 31061 states and 177165 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:14,056 INFO L93 Difference]: Finished difference Result 79196 states and 432467 transitions. [2022-03-01 17:08:14,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:14,057 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:14,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:14,693 INFO L225 Difference]: With dead ends: 79196 [2022-03-01 17:08:14,693 INFO L226 Difference]: Without dead ends: 76597 [2022-03-01 17:08:14,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:14,694 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 383 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:14,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 281 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:08:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76597 states. [2022-03-01 17:08:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76597 to 31349. [2022-03-01 17:08:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31349 states, 31348 states have (on average 5.695961464846242) internal successors, (178557), 31348 states have internal predecessors, (178557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31349 states to 31349 states and 178557 transitions. [2022-03-01 17:08:16,546 INFO L78 Accepts]: Start accepts. Automaton has 31349 states and 178557 transitions. Word has length 33 [2022-03-01 17:08:16,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:16,546 INFO L470 AbstractCegarLoop]: Abstraction has 31349 states and 178557 transitions. [2022-03-01 17:08:16,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,547 INFO L276 IsEmpty]: Start isEmpty. Operand 31349 states and 178557 transitions. [2022-03-01 17:08:16,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:16,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:16,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:16,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 17:08:16,644 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:16,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:16,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1244362685, now seen corresponding path program 8 times [2022-03-01 17:08:16,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:16,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132630197] [2022-03-01 17:08:16,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:16,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:17,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:17,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132630197] [2022-03-01 17:08:17,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132630197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:17,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:17,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:17,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700121019] [2022-03-01 17:08:17,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:17,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:17,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:17,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:17,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:17,174 INFO L87 Difference]: Start difference. First operand 31349 states and 178557 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:18,480 INFO L93 Difference]: Finished difference Result 79196 states and 432251 transitions. [2022-03-01 17:08:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:18,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:18,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:18,886 INFO L225 Difference]: With dead ends: 79196 [2022-03-01 17:08:18,886 INFO L226 Difference]: Without dead ends: 76381 [2022-03-01 17:08:18,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:18,887 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 398 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:18,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 311 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:08:19,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76381 states. [2022-03-01 17:08:20,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76381 to 31133. [2022-03-01 17:08:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31133 states, 31132 states have (on average 5.701946550173455) internal successors, (177513), 31132 states have internal predecessors, (177513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31133 states to 31133 states and 177513 transitions. [2022-03-01 17:08:20,890 INFO L78 Accepts]: Start accepts. Automaton has 31133 states and 177513 transitions. Word has length 33 [2022-03-01 17:08:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:20,895 INFO L470 AbstractCegarLoop]: Abstraction has 31133 states and 177513 transitions. [2022-03-01 17:08:20,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,895 INFO L276 IsEmpty]: Start isEmpty. Operand 31133 states and 177513 transitions. [2022-03-01 17:08:20,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:20,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:20,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:20,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 17:08:20,985 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:20,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:20,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1852464117, now seen corresponding path program 9 times [2022-03-01 17:08:20,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:20,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962012346] [2022-03-01 17:08:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:20,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:21,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:21,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962012346] [2022-03-01 17:08:21,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962012346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:21,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:21,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:21,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140379406] [2022-03-01 17:08:21,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:21,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:21,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:21,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:21,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:21,210 INFO L87 Difference]: Start difference. First operand 31133 states and 177513 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:22,429 INFO L93 Difference]: Finished difference Result 79196 states and 432395 transitions. [2022-03-01 17:08:22,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:22,429 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:22,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:23,058 INFO L225 Difference]: With dead ends: 79196 [2022-03-01 17:08:23,058 INFO L226 Difference]: Without dead ends: 76597 [2022-03-01 17:08:23,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:23,059 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 386 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:23,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 329 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:08:23,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76597 states. [2022-03-01 17:08:24,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76597 to 31349. [2022-03-01 17:08:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31349 states, 31348 states have (on average 5.693664667602399) internal successors, (178485), 31348 states have internal predecessors, (178485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31349 states to 31349 states and 178485 transitions. [2022-03-01 17:08:24,872 INFO L78 Accepts]: Start accepts. Automaton has 31349 states and 178485 transitions. Word has length 33 [2022-03-01 17:08:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:24,872 INFO L470 AbstractCegarLoop]: Abstraction has 31349 states and 178485 transitions. [2022-03-01 17:08:24,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 31349 states and 178485 transitions. [2022-03-01 17:08:24,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:24,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:24,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:24,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 17:08:24,963 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:24,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:24,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2118953149, now seen corresponding path program 1 times [2022-03-01 17:08:24,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:24,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246962324] [2022-03-01 17:08:24,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:24,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:24,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:24,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246962324] [2022-03-01 17:08:24,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246962324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:24,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:24,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:08:24,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733246656] [2022-03-01 17:08:24,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:24,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:08:24,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:24,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:08:24,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:08:24,984 INFO L87 Difference]: Start difference. First operand 31349 states and 178485 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:25,408 INFO L93 Difference]: Finished difference Result 24716 states and 138042 transitions. [2022-03-01 17:08:25,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:08:25,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:25,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:25,518 INFO L225 Difference]: With dead ends: 24716 [2022-03-01 17:08:25,518 INFO L226 Difference]: Without dead ends: 24716 [2022-03-01 17:08:25,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:08:25,518 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 32 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:25,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 29 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:25,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24716 states. [2022-03-01 17:08:26,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24716 to 24716. [2022-03-01 17:08:26,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24716 states, 24715 states have (on average 5.585353024479061) internal successors, (138042), 24715 states have internal predecessors, (138042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24716 states to 24716 states and 138042 transitions. [2022-03-01 17:08:26,323 INFO L78 Accepts]: Start accepts. Automaton has 24716 states and 138042 transitions. Word has length 33 [2022-03-01 17:08:26,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:26,324 INFO L470 AbstractCegarLoop]: Abstraction has 24716 states and 138042 transitions. [2022-03-01 17:08:26,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,324 INFO L276 IsEmpty]: Start isEmpty. Operand 24716 states and 138042 transitions. [2022-03-01 17:08:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:26,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:26,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:26,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 17:08:26,393 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:26,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:26,394 INFO L85 PathProgramCache]: Analyzing trace with hash -177851295, now seen corresponding path program 10 times [2022-03-01 17:08:26,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:26,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344363950] [2022-03-01 17:08:26,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:26,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:26,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:26,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:26,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344363950] [2022-03-01 17:08:26,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344363950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:26,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:26,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:26,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330027682] [2022-03-01 17:08:26,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:26,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:26,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:26,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:26,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:26,829 INFO L87 Difference]: Start difference. First operand 24716 states and 138042 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:27,907 INFO L93 Difference]: Finished difference Result 61566 states and 328602 transitions. [2022-03-01 17:08:27,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:27,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:27,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:28,215 INFO L225 Difference]: With dead ends: 61566 [2022-03-01 17:08:28,216 INFO L226 Difference]: Without dead ends: 59607 [2022-03-01 17:08:28,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:28,216 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 373 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:28,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 336 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:08:28,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59607 states. [2022-03-01 17:08:29,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59607 to 24572. [2022-03-01 17:08:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24572 states, 24571 states have (on average 5.589760286516626) internal successors, (137346), 24571 states have internal predecessors, (137346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24572 states to 24572 states and 137346 transitions. [2022-03-01 17:08:29,677 INFO L78 Accepts]: Start accepts. Automaton has 24572 states and 137346 transitions. Word has length 33 [2022-03-01 17:08:29,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:29,677 INFO L470 AbstractCegarLoop]: Abstraction has 24572 states and 137346 transitions. [2022-03-01 17:08:29,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,678 INFO L276 IsEmpty]: Start isEmpty. Operand 24572 states and 137346 transitions. [2022-03-01 17:08:29,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:29,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:29,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:29,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-01 17:08:29,743 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:29,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:29,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1616994211, now seen corresponding path program 11 times [2022-03-01 17:08:29,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:29,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932633197] [2022-03-01 17:08:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:29,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:29,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:29,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:29,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932633197] [2022-03-01 17:08:29,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932633197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:29,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:29,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:29,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819802780] [2022-03-01 17:08:29,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:29,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:29,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:29,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:29,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:29,960 INFO L87 Difference]: Start difference. First operand 24572 states and 137346 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:30,951 INFO L93 Difference]: Finished difference Result 62054 states and 331414 transitions. [2022-03-01 17:08:30,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:30,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:30,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:31,243 INFO L225 Difference]: With dead ends: 62054 [2022-03-01 17:08:31,243 INFO L226 Difference]: Without dead ends: 60031 [2022-03-01 17:08:31,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:31,244 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 354 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:31,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 340 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:08:31,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60031 states. [2022-03-01 17:08:32,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60031 to 24788. [2022-03-01 17:08:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24788 states, 24787 states have (on average 5.58026384798483) internal successors, (138318), 24787 states have internal predecessors, (138318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24788 states to 24788 states and 138318 transitions. [2022-03-01 17:08:32,934 INFO L78 Accepts]: Start accepts. Automaton has 24788 states and 138318 transitions. Word has length 33 [2022-03-01 17:08:32,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:32,934 INFO L470 AbstractCegarLoop]: Abstraction has 24788 states and 138318 transitions. [2022-03-01 17:08:32,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 24788 states and 138318 transitions. [2022-03-01 17:08:33,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:33,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:33,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:33,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 17:08:33,008 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:33,009 INFO L85 PathProgramCache]: Analyzing trace with hash -426342783, now seen corresponding path program 12 times [2022-03-01 17:08:33,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:33,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998503114] [2022-03-01 17:08:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:33,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:33,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:33,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998503114] [2022-03-01 17:08:33,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998503114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:33,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:33,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:33,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762729378] [2022-03-01 17:08:33,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:33,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:33,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:33,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:33,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:33,329 INFO L87 Difference]: Start difference. First operand 24788 states and 138318 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:34,317 INFO L93 Difference]: Finished difference Result 61846 states and 330038 transitions. [2022-03-01 17:08:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:34,317 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:34,831 INFO L225 Difference]: With dead ends: 61846 [2022-03-01 17:08:34,831 INFO L226 Difference]: Without dead ends: 59743 [2022-03-01 17:08:34,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:34,832 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 328 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:34,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 317 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:08:34,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59743 states. [2022-03-01 17:08:35,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59743 to 24500. [2022-03-01 17:08:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24500 states, 24499 states have (on average 5.593452793991592) internal successors, (137034), 24499 states have internal predecessors, (137034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24500 states to 24500 states and 137034 transitions. [2022-03-01 17:08:36,027 INFO L78 Accepts]: Start accepts. Automaton has 24500 states and 137034 transitions. Word has length 33 [2022-03-01 17:08:36,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:36,027 INFO L470 AbstractCegarLoop]: Abstraction has 24500 states and 137034 transitions. [2022-03-01 17:08:36,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 24500 states and 137034 transitions. [2022-03-01 17:08:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:36,373 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:36,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:36,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 17:08:36,373 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1994192489, now seen corresponding path program 13 times [2022-03-01 17:08:36,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:36,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156028869] [2022-03-01 17:08:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:36,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:36,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:36,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:36,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156028869] [2022-03-01 17:08:36,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156028869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:36,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:36,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:36,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515436247] [2022-03-01 17:08:36,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:36,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:36,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:36,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:36,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:36,622 INFO L87 Difference]: Start difference. First operand 24500 states and 137034 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:37,656 INFO L93 Difference]: Finished difference Result 61901 states and 330353 transitions. [2022-03-01 17:08:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:37,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:37,965 INFO L225 Difference]: With dead ends: 61901 [2022-03-01 17:08:37,965 INFO L226 Difference]: Without dead ends: 60086 [2022-03-01 17:08:37,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:37,966 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 365 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:37,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 282 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:08:38,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60086 states. [2022-03-01 17:08:39,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60086 to 24748. [2022-03-01 17:08:39,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24748 states, 24747 states have (on average 5.5866973774598945) internal successors, (138254), 24747 states have internal predecessors, (138254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24748 states to 24748 states and 138254 transitions. [2022-03-01 17:08:39,398 INFO L78 Accepts]: Start accepts. Automaton has 24748 states and 138254 transitions. Word has length 33 [2022-03-01 17:08:39,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:39,398 INFO L470 AbstractCegarLoop]: Abstraction has 24748 states and 138254 transitions. [2022-03-01 17:08:39,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,398 INFO L276 IsEmpty]: Start isEmpty. Operand 24748 states and 138254 transitions. [2022-03-01 17:08:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:39,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:39,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:39,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 17:08:39,465 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:39,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash 270459395, now seen corresponding path program 14 times [2022-03-01 17:08:39,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:39,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090490110] [2022-03-01 17:08:39,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:39,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:39,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:39,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:39,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090490110] [2022-03-01 17:08:39,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090490110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:39,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:39,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:39,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525825250] [2022-03-01 17:08:39,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:39,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:39,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:39,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:39,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:39,689 INFO L87 Difference]: Start difference. First operand 24748 states and 138254 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:40,679 INFO L93 Difference]: Finished difference Result 61901 states and 330209 transitions. [2022-03-01 17:08:40,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:40,679 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:40,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:41,184 INFO L225 Difference]: With dead ends: 61901 [2022-03-01 17:08:41,185 INFO L226 Difference]: Without dead ends: 59942 [2022-03-01 17:08:41,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:41,185 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 368 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:41,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 269 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:08:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59942 states. [2022-03-01 17:08:42,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59942 to 24604. [2022-03-01 17:08:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24604 states, 24603 states have (on average 5.591106775596472) internal successors, (137558), 24603 states have internal predecessors, (137558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24604 states to 24604 states and 137558 transitions. [2022-03-01 17:08:42,336 INFO L78 Accepts]: Start accepts. Automaton has 24604 states and 137558 transitions. Word has length 33 [2022-03-01 17:08:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:42,336 INFO L470 AbstractCegarLoop]: Abstraction has 24604 states and 137558 transitions. [2022-03-01 17:08:42,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,336 INFO L276 IsEmpty]: Start isEmpty. Operand 24604 states and 137558 transitions. [2022-03-01 17:08:42,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:42,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:42,403 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] [2022-03-01 17:08:42,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 17:08:42,404 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:42,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:42,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1749022069, now seen corresponding path program 15 times [2022-03-01 17:08:42,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:42,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602448921] [2022-03-01 17:08:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:42,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:42,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:42,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602448921] [2022-03-01 17:08:42,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602448921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:42,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:42,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:42,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199938831] [2022-03-01 17:08:42,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:42,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:42,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:42,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:42,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:42,880 INFO L87 Difference]: Start difference. First operand 24604 states and 137558 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:43,970 INFO L93 Difference]: Finished difference Result 62416 states and 332920 transitions. [2022-03-01 17:08:43,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:43,971 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:43,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:44,294 INFO L225 Difference]: With dead ends: 62416 [2022-03-01 17:08:44,294 INFO L226 Difference]: Without dead ends: 60601 [2022-03-01 17:08:44,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:44,295 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 354 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:44,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 328 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:08:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60601 states. [2022-03-01 17:08:45,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60601 to 24888. [2022-03-01 17:08:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24888 states, 24887 states have (on average 5.579700245107888) internal successors, (138862), 24887 states have internal predecessors, (138862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24888 states to 24888 states and 138862 transitions. [2022-03-01 17:08:45,788 INFO L78 Accepts]: Start accepts. Automaton has 24888 states and 138862 transitions. Word has length 33 [2022-03-01 17:08:45,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:45,788 INFO L470 AbstractCegarLoop]: Abstraction has 24888 states and 138862 transitions. [2022-03-01 17:08:45,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,788 INFO L276 IsEmpty]: Start isEmpty. Operand 24888 states and 138862 transitions. [2022-03-01 17:08:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:45,864 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:45,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:45,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 17:08:45,864 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:45,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:45,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1581705047, now seen corresponding path program 16 times [2022-03-01 17:08:45,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:45,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792111365] [2022-03-01 17:08:45,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:45,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:46,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:46,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:46,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792111365] [2022-03-01 17:08:46,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792111365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:46,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:46,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:46,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960509091] [2022-03-01 17:08:46,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:46,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:46,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:46,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:46,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:46,106 INFO L87 Difference]: Start difference. First operand 24888 states and 138862 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:47,047 INFO L93 Difference]: Finished difference Result 62791 states and 334583 transitions. [2022-03-01 17:08:47,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:47,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:47,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:47,562 INFO L225 Difference]: With dead ends: 62791 [2022-03-01 17:08:47,563 INFO L226 Difference]: Without dead ends: 60317 [2022-03-01 17:08:47,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:47,563 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 374 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:47,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 286 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:08:47,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60317 states. [2022-03-01 17:08:48,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60317 to 24604. [2022-03-01 17:08:48,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24604 states, 24603 states have (on average 5.586879648823314) internal successors, (137454), 24603 states have internal predecessors, (137454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24604 states to 24604 states and 137454 transitions. [2022-03-01 17:08:48,749 INFO L78 Accepts]: Start accepts. Automaton has 24604 states and 137454 transitions. Word has length 33 [2022-03-01 17:08:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:48,749 INFO L470 AbstractCegarLoop]: Abstraction has 24604 states and 137454 transitions. [2022-03-01 17:08:48,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 24604 states and 137454 transitions. [2022-03-01 17:08:48,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:48,816 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:48,816 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] [2022-03-01 17:08:48,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 17:08:48,816 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:48,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:48,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1040230915, now seen corresponding path program 17 times [2022-03-01 17:08:48,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:48,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513496333] [2022-03-01 17:08:48,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:48,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:49,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:49,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513496333] [2022-03-01 17:08:49,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513496333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:49,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:49,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:49,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007140748] [2022-03-01 17:08:49,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:49,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:49,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:49,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:49,243 INFO L87 Difference]: Start difference. First operand 24604 states and 137454 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:50,346 INFO L93 Difference]: Finished difference Result 62416 states and 332816 transitions. [2022-03-01 17:08:50,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:50,346 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:50,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:50,669 INFO L225 Difference]: With dead ends: 62416 [2022-03-01 17:08:50,669 INFO L226 Difference]: Without dead ends: 60601 [2022-03-01 17:08:50,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:50,669 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 356 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:50,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 323 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:08:50,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60601 states. [2022-03-01 17:08:51,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60601 to 24888. [2022-03-01 17:08:51,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24888 states, 24887 states have (on average 5.575521356531523) internal successors, (138758), 24887 states have internal predecessors, (138758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24888 states to 24888 states and 138758 transitions. [2022-03-01 17:08:52,118 INFO L78 Accepts]: Start accepts. Automaton has 24888 states and 138758 transitions. Word has length 33 [2022-03-01 17:08:52,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:52,118 INFO L470 AbstractCegarLoop]: Abstraction has 24888 states and 138758 transitions. [2022-03-01 17:08:52,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 24888 states and 138758 transitions. [2022-03-01 17:08:52,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:52,188 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:52,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:52,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 17:08:52,188 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:52,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:52,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1266485919, now seen corresponding path program 18 times [2022-03-01 17:08:52,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:52,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320694757] [2022-03-01 17:08:52,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:52,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:52,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:52,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:52,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320694757] [2022-03-01 17:08:52,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320694757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:52,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:52,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:52,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216294964] [2022-03-01 17:08:52,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:52,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:52,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:52,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:52,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:52,410 INFO L87 Difference]: Start difference. First operand 24888 states and 138758 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:53,414 INFO L93 Difference]: Finished difference Result 62791 states and 334479 transitions. [2022-03-01 17:08:53,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:53,415 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:53,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:53,702 INFO L225 Difference]: With dead ends: 62791 [2022-03-01 17:08:53,703 INFO L226 Difference]: Without dead ends: 60213 [2022-03-01 17:08:53,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:53,703 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 312 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:53,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 363 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:08:54,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60213 states. [2022-03-01 17:08:54,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60213 to 24500. [2022-03-01 17:08:54,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24500 states, 24499 states have (on average 5.5913302583778925) internal successors, (136982), 24499 states have internal predecessors, (136982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24500 states to 24500 states and 136982 transitions. [2022-03-01 17:08:55,058 INFO L78 Accepts]: Start accepts. Automaton has 24500 states and 136982 transitions. Word has length 33 [2022-03-01 17:08:55,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:55,058 INFO L470 AbstractCegarLoop]: Abstraction has 24500 states and 136982 transitions. [2022-03-01 17:08:55,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,058 INFO L276 IsEmpty]: Start isEmpty. Operand 24500 states and 136982 transitions. [2022-03-01 17:08:55,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:55,120 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:55,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:55,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 17:08:55,121 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:55,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1372247237, now seen corresponding path program 19 times [2022-03-01 17:08:55,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:55,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813354962] [2022-03-01 17:08:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:55,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:55,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:55,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:55,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813354962] [2022-03-01 17:08:55,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813354962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:55,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:55,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:55,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94360304] [2022-03-01 17:08:55,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:55,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:55,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:55,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:55,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:55,346 INFO L87 Difference]: Start difference. First operand 24500 states and 136982 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:56,610 INFO L93 Difference]: Finished difference Result 62809 states and 335481 transitions. [2022-03-01 17:08:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:56,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:56,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:56,939 INFO L225 Difference]: With dead ends: 62809 [2022-03-01 17:08:56,939 INFO L226 Difference]: Without dead ends: 60786 [2022-03-01 17:08:56,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:08:56,940 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 355 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:56,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 270 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:08:57,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60786 states. [2022-03-01 17:08:58,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60786 to 24856. [2022-03-01 17:08:58,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24856 states, 24855 states have (on average 5.583504325085496) internal successors, (138778), 24855 states have internal predecessors, (138778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24856 states to 24856 states and 138778 transitions. [2022-03-01 17:08:58,499 INFO L78 Accepts]: Start accepts. Automaton has 24856 states and 138778 transitions. Word has length 33 [2022-03-01 17:08:58,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:58,499 INFO L470 AbstractCegarLoop]: Abstraction has 24856 states and 138778 transitions. [2022-03-01 17:08:58,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,499 INFO L276 IsEmpty]: Start isEmpty. Operand 24856 states and 138778 transitions. [2022-03-01 17:08:58,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:08:58,575 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:58,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:58,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 17:08:58,575 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:08:58,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:58,576 INFO L85 PathProgramCache]: Analyzing trace with hash -671089757, now seen corresponding path program 20 times [2022-03-01 17:08:58,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:58,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660337243] [2022-03-01 17:08:58,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:58,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:58,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:58,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660337243] [2022-03-01 17:08:58,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660337243] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:58,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:58,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:08:58,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071248497] [2022-03-01 17:08:58,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:58,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:08:58,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:58,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:08:58,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:08:58,811 INFO L87 Difference]: Start difference. First operand 24856 states and 138778 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:59,896 INFO L93 Difference]: Finished difference Result 62601 states and 334105 transitions. [2022-03-01 17:08:59,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:08:59,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:08:59,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:00,340 INFO L225 Difference]: With dead ends: 62601 [2022-03-01 17:09:00,344 INFO L226 Difference]: Without dead ends: 60570 [2022-03-01 17:09:00,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:00,345 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 397 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:00,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 290 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:00,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60570 states. [2022-03-01 17:09:01,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60570 to 24640. [2022-03-01 17:09:01,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24640 states, 24639 states have (on average 5.5886196680060065) internal successors, (137698), 24639 states have internal predecessors, (137698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24640 states to 24640 states and 137698 transitions. [2022-03-01 17:09:01,856 INFO L78 Accepts]: Start accepts. Automaton has 24640 states and 137698 transitions. Word has length 33 [2022-03-01 17:09:01,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:01,856 INFO L470 AbstractCegarLoop]: Abstraction has 24640 states and 137698 transitions. [2022-03-01 17:09:01,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,856 INFO L276 IsEmpty]: Start isEmpty. Operand 24640 states and 137698 transitions. [2022-03-01 17:09:01,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:01,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:01,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:01,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 17:09:01,927 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:01,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:01,928 INFO L85 PathProgramCache]: Analyzing trace with hash 820494499, now seen corresponding path program 21 times [2022-03-01 17:09:01,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:01,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004652977] [2022-03-01 17:09:01,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:01,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:02,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:02,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004652977] [2022-03-01 17:09:02,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004652977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:02,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:02,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:02,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062476360] [2022-03-01 17:09:02,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:02,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:02,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:02,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:02,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:02,148 INFO L87 Difference]: Start difference. First operand 24640 states and 137698 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:03,225 INFO L93 Difference]: Finished difference Result 63356 states and 338224 transitions. [2022-03-01 17:09:03,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:03,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:03,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:03,856 INFO L225 Difference]: With dead ends: 63356 [2022-03-01 17:09:03,856 INFO L226 Difference]: Without dead ends: 61333 [2022-03-01 17:09:03,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:03,857 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 352 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:03,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 312 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:09:03,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61333 states. [2022-03-01 17:09:04,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61333 to 25028. [2022-03-01 17:09:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25028 states, 25027 states have (on average 5.575178806888561) internal successors, (139530), 25027 states have internal predecessors, (139530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25028 states to 25028 states and 139530 transitions. [2022-03-01 17:09:05,317 INFO L78 Accepts]: Start accepts. Automaton has 25028 states and 139530 transitions. Word has length 33 [2022-03-01 17:09:05,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:05,317 INFO L470 AbstractCegarLoop]: Abstraction has 25028 states and 139530 transitions. [2022-03-01 17:09:05,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,317 INFO L276 IsEmpty]: Start isEmpty. Operand 25028 states and 139530 transitions. [2022-03-01 17:09:05,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:05,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:05,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:05,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-01 17:09:05,396 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:05,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:05,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2120226653, now seen corresponding path program 22 times [2022-03-01 17:09:05,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:05,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815781144] [2022-03-01 17:09:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:05,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:05,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:05,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815781144] [2022-03-01 17:09:05,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815781144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:05,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:05,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:05,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827021103] [2022-03-01 17:09:05,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:05,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:05,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:05,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:05,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:05,618 INFO L87 Difference]: Start difference. First operand 25028 states and 139530 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:06,670 INFO L93 Difference]: Finished difference Result 63523 states and 338623 transitions. [2022-03-01 17:09:06,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:06,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:06,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:06,963 INFO L225 Difference]: With dead ends: 63523 [2022-03-01 17:09:06,963 INFO L226 Difference]: Without dead ends: 60945 [2022-03-01 17:09:06,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:06,963 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 355 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:06,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 337 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:09:07,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60945 states. [2022-03-01 17:09:08,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60945 to 24640. [2022-03-01 17:09:08,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24640 states, 24639 states have (on average 5.58293761922156) internal successors, (137558), 24639 states have internal predecessors, (137558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24640 states to 24640 states and 137558 transitions. [2022-03-01 17:09:08,351 INFO L78 Accepts]: Start accepts. Automaton has 24640 states and 137558 transitions. Word has length 33 [2022-03-01 17:09:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:08,351 INFO L470 AbstractCegarLoop]: Abstraction has 24640 states and 137558 transitions. [2022-03-01 17:09:08,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,351 INFO L276 IsEmpty]: Start isEmpty. Operand 24640 states and 137558 transitions. [2022-03-01 17:09:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:08,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:08,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:08,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-01 17:09:08,427 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:08,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1802842113, now seen corresponding path program 23 times [2022-03-01 17:09:08,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:08,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6991429] [2022-03-01 17:09:08,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:08,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:08,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:08,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6991429] [2022-03-01 17:09:08,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6991429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:08,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:08,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:08,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304319319] [2022-03-01 17:09:08,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:08,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:08,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:08,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:08,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:08,649 INFO L87 Difference]: Start difference. First operand 24640 states and 137558 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:09,671 INFO L93 Difference]: Finished difference Result 62836 states and 335132 transitions. [2022-03-01 17:09:09,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:09,671 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:10,178 INFO L225 Difference]: With dead ends: 62836 [2022-03-01 17:09:10,179 INFO L226 Difference]: Without dead ends: 61021 [2022-03-01 17:09:10,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:10,179 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 376 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:10,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 295 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:09:10,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61021 states. [2022-03-01 17:09:11,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61021 to 24924. [2022-03-01 17:09:11,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24924 states, 24923 states have (on average 5.571640653211893) internal successors, (138862), 24923 states have internal predecessors, (138862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24924 states to 24924 states and 138862 transitions. [2022-03-01 17:09:11,406 INFO L78 Accepts]: Start accepts. Automaton has 24924 states and 138862 transitions. Word has length 33 [2022-03-01 17:09:11,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:11,406 INFO L470 AbstractCegarLoop]: Abstraction has 24924 states and 138862 transitions. [2022-03-01 17:09:11,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 24924 states and 138862 transitions. [2022-03-01 17:09:11,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:11,759 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:11,759 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] [2022-03-01 17:09:11,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-01 17:09:11,763 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:11,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:11,764 INFO L85 PathProgramCache]: Analyzing trace with hash -985903005, now seen corresponding path program 24 times [2022-03-01 17:09:11,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:11,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045221653] [2022-03-01 17:09:11,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:11,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:11,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:11,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045221653] [2022-03-01 17:09:11,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045221653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:11,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:11,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:11,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136738777] [2022-03-01 17:09:11,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:11,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:11,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:11,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:11,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:11,996 INFO L87 Difference]: Start difference. First operand 24924 states and 138862 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:13,074 INFO L93 Difference]: Finished difference Result 63211 states and 336795 transitions. [2022-03-01 17:09:13,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:13,074 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:13,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:13,393 INFO L225 Difference]: With dead ends: 63211 [2022-03-01 17:09:13,394 INFO L226 Difference]: Without dead ends: 60545 [2022-03-01 17:09:13,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:13,394 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 352 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:13,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 266 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:13,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60545 states. [2022-03-01 17:09:14,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60545 to 24448. [2022-03-01 17:09:14,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 5.594633288338037) internal successors, (136772), 24447 states have internal predecessors, (136772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 136772 transitions. [2022-03-01 17:09:14,778 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 136772 transitions. Word has length 33 [2022-03-01 17:09:14,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:14,778 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 136772 transitions. [2022-03-01 17:09:14,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 136772 transitions. [2022-03-01 17:09:14,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:14,840 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:14,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:14,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-01 17:09:14,840 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:14,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:14,840 INFO L85 PathProgramCache]: Analyzing trace with hash 232677161, now seen corresponding path program 25 times [2022-03-01 17:09:14,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:14,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511640113] [2022-03-01 17:09:14,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:14,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:15,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:15,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511640113] [2022-03-01 17:09:15,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511640113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:15,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:15,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:15,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216163259] [2022-03-01 17:09:15,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:15,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:15,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:15,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:15,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:15,050 INFO L87 Difference]: Start difference. First operand 24448 states and 136772 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:15,961 INFO L93 Difference]: Finished difference Result 63444 states and 339101 transitions. [2022-03-01 17:09:15,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:15,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:16,471 INFO L225 Difference]: With dead ends: 63444 [2022-03-01 17:09:16,471 INFO L226 Difference]: Without dead ends: 61629 [2022-03-01 17:09:16,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:16,476 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 391 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:16,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 252 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:16,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61629 states. [2022-03-01 17:09:17,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61629 to 24890. [2022-03-01 17:09:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24890 states, 24889 states have (on average 5.588613443689984) internal successors, (139095), 24889 states have internal predecessors, (139095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24890 states to 24890 states and 139095 transitions. [2022-03-01 17:09:17,663 INFO L78 Accepts]: Start accepts. Automaton has 24890 states and 139095 transitions. Word has length 33 [2022-03-01 17:09:17,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:17,663 INFO L470 AbstractCegarLoop]: Abstraction has 24890 states and 139095 transitions. [2022-03-01 17:09:17,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,664 INFO L276 IsEmpty]: Start isEmpty. Operand 24890 states and 139095 transitions. [2022-03-01 17:09:17,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:17,969 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:17,970 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] [2022-03-01 17:09:17,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-01 17:09:17,970 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:17,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:17,970 INFO L85 PathProgramCache]: Analyzing trace with hash 705638355, now seen corresponding path program 26 times [2022-03-01 17:09:17,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:17,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748671552] [2022-03-01 17:09:17,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:17,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:18,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:18,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748671552] [2022-03-01 17:09:18,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748671552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:18,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:18,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:18,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609454524] [2022-03-01 17:09:18,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:18,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:18,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:18,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:18,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:18,225 INFO L87 Difference]: Start difference. First operand 24890 states and 139095 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:19,281 INFO L93 Difference]: Finished difference Result 63652 states and 340045 transitions. [2022-03-01 17:09:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:19,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:19,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:19,592 INFO L225 Difference]: With dead ends: 63652 [2022-03-01 17:09:19,592 INFO L226 Difference]: Without dead ends: 61413 [2022-03-01 17:09:19,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:19,593 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 372 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:19,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 300 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:19,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61413 states. [2022-03-01 17:09:20,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61413 to 24674. [2022-03-01 17:09:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24674 states, 24673 states have (on average 5.5937664653670005) internal successors, (138015), 24673 states have internal predecessors, (138015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24674 states to 24674 states and 138015 transitions. [2022-03-01 17:09:21,012 INFO L78 Accepts]: Start accepts. Automaton has 24674 states and 138015 transitions. Word has length 33 [2022-03-01 17:09:21,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:21,012 INFO L470 AbstractCegarLoop]: Abstraction has 24674 states and 138015 transitions. [2022-03-01 17:09:21,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,012 INFO L276 IsEmpty]: Start isEmpty. Operand 24674 states and 138015 transitions. [2022-03-01 17:09:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:21,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:21,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:21,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-01 17:09:21,084 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:21,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:21,085 INFO L85 PathProgramCache]: Analyzing trace with hash -146794263, now seen corresponding path program 27 times [2022-03-01 17:09:21,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:21,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180724764] [2022-03-01 17:09:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:21,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:21,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:21,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180724764] [2022-03-01 17:09:21,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180724764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:21,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:21,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:21,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130263775] [2022-03-01 17:09:21,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:21,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:21,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:21,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:21,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:21,311 INFO L87 Difference]: Start difference. First operand 24674 states and 138015 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:22,291 INFO L93 Difference]: Finished difference Result 63679 states and 340052 transitions. [2022-03-01 17:09:22,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:22,292 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:22,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:22,782 INFO L225 Difference]: With dead ends: 63679 [2022-03-01 17:09:22,782 INFO L226 Difference]: Without dead ends: 61864 [2022-03-01 17:09:22,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:22,784 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 331 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:22,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 293 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:22,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61864 states. [2022-03-01 17:09:23,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61864 to 24958. [2022-03-01 17:09:23,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24958 states, 24957 states have (on average 5.582361662058741) internal successors, (139319), 24957 states have internal predecessors, (139319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24958 states to 24958 states and 139319 transitions. [2022-03-01 17:09:24,050 INFO L78 Accepts]: Start accepts. Automaton has 24958 states and 139319 transitions. Word has length 33 [2022-03-01 17:09:24,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:24,050 INFO L470 AbstractCegarLoop]: Abstraction has 24958 states and 139319 transitions. [2022-03-01 17:09:24,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,050 INFO L276 IsEmpty]: Start isEmpty. Operand 24958 states and 139319 transitions. [2022-03-01 17:09:24,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:24,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:24,371 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] [2022-03-01 17:09:24,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-01 17:09:24,371 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:24,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:24,371 INFO L85 PathProgramCache]: Analyzing trace with hash 971085481, now seen corresponding path program 28 times [2022-03-01 17:09:24,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:24,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613336017] [2022-03-01 17:09:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:24,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:24,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:24,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613336017] [2022-03-01 17:09:24,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613336017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:24,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:24,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:24,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773025880] [2022-03-01 17:09:24,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:24,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:24,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:24,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:24,618 INFO L87 Difference]: Start difference. First operand 24958 states and 139319 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:25,662 INFO L93 Difference]: Finished difference Result 64054 states and 341715 transitions. [2022-03-01 17:09:25,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:25,662 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:25,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:25,984 INFO L225 Difference]: With dead ends: 64054 [2022-03-01 17:09:25,984 INFO L226 Difference]: Without dead ends: 61580 [2022-03-01 17:09:25,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:25,991 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 332 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:25,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 292 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:26,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61580 states. [2022-03-01 17:09:27,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61580 to 24674. [2022-03-01 17:09:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24674 states, 24673 states have (on average 5.588092246585336) internal successors, (137875), 24673 states have internal predecessors, (137875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24674 states to 24674 states and 137875 transitions. [2022-03-01 17:09:27,483 INFO L78 Accepts]: Start accepts. Automaton has 24674 states and 137875 transitions. Word has length 33 [2022-03-01 17:09:27,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:27,483 INFO L470 AbstractCegarLoop]: Abstraction has 24674 states and 137875 transitions. [2022-03-01 17:09:27,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,483 INFO L276 IsEmpty]: Start isEmpty. Operand 24674 states and 137875 transitions. [2022-03-01 17:09:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:27,559 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:27,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:27,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-01 17:09:27,560 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:27,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:27,560 INFO L85 PathProgramCache]: Analyzing trace with hash -18739791, now seen corresponding path program 29 times [2022-03-01 17:09:27,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:27,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512852782] [2022-03-01 17:09:27,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:27,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:27,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:27,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512852782] [2022-03-01 17:09:27,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512852782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:27,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:27,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:27,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420111080] [2022-03-01 17:09:27,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:27,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:27,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:27,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:27,865 INFO L87 Difference]: Start difference. First operand 24674 states and 137875 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:28,982 INFO L93 Difference]: Finished difference Result 64199 states and 342864 transitions. [2022-03-01 17:09:28,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:28,983 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:28,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:29,512 INFO L225 Difference]: With dead ends: 64199 [2022-03-01 17:09:29,513 INFO L226 Difference]: Without dead ends: 62176 [2022-03-01 17:09:29,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:29,513 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 382 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:29,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 282 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:09:29,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62176 states. [2022-03-01 17:09:30,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62176 to 25062. [2022-03-01 17:09:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25062 states, 25061 states have (on average 5.574677786201668) internal successors, (139707), 25061 states have internal predecessors, (139707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25062 states to 25062 states and 139707 transitions. [2022-03-01 17:09:30,766 INFO L78 Accepts]: Start accepts. Automaton has 25062 states and 139707 transitions. Word has length 33 [2022-03-01 17:09:30,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:30,767 INFO L470 AbstractCegarLoop]: Abstraction has 25062 states and 139707 transitions. [2022-03-01 17:09:30,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,767 INFO L276 IsEmpty]: Start isEmpty. Operand 25062 states and 139707 transitions. [2022-03-01 17:09:31,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:31,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:31,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:31,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-01 17:09:31,052 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:31,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1734711789, now seen corresponding path program 30 times [2022-03-01 17:09:31,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:31,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906694959] [2022-03-01 17:09:31,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:31,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:31,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:31,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906694959] [2022-03-01 17:09:31,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906694959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:31,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:31,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:31,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418254787] [2022-03-01 17:09:31,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:31,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:31,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:31,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:31,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:31,351 INFO L87 Difference]: Start difference. First operand 25062 states and 139707 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:32,436 INFO L93 Difference]: Finished difference Result 64366 states and 343263 transitions. [2022-03-01 17:09:32,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:32,436 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:32,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:32,750 INFO L225 Difference]: With dead ends: 64366 [2022-03-01 17:09:32,750 INFO L226 Difference]: Without dead ends: 61648 [2022-03-01 17:09:32,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:32,750 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 376 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:32,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 285 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:32,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61648 states. [2022-03-01 17:09:34,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61648 to 24534. [2022-03-01 17:09:34,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.593649370236009) internal successors, (137229), 24533 states have internal predecessors, (137229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137229 transitions. [2022-03-01 17:09:34,156 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137229 transitions. Word has length 33 [2022-03-01 17:09:34,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:34,156 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137229 transitions. [2022-03-01 17:09:34,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137229 transitions. [2022-03-01 17:09:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:34,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:34,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:34,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-01 17:09:34,220 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:34,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1541537193, now seen corresponding path program 31 times [2022-03-01 17:09:34,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:34,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684504092] [2022-03-01 17:09:34,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:34,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:34,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:34,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:34,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684504092] [2022-03-01 17:09:34,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684504092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:34,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:34,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:34,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094551334] [2022-03-01 17:09:34,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:34,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:34,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:34,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:34,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:34,418 INFO L87 Difference]: Start difference. First operand 24534 states and 137229 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:35,401 INFO L93 Difference]: Finished difference Result 63155 states and 337637 transitions. [2022-03-01 17:09:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:35,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:35,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:35,934 INFO L225 Difference]: With dead ends: 63155 [2022-03-01 17:09:35,934 INFO L226 Difference]: Without dead ends: 61340 [2022-03-01 17:09:35,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:35,935 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 359 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:35,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 281 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:36,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61340 states. [2022-03-01 17:09:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61340 to 24858. [2022-03-01 17:09:37,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24857 states have (on average 5.585911413283984) internal successors, (138849), 24857 states have internal predecessors, (138849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 138849 transitions. [2022-03-01 17:09:37,226 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 138849 transitions. Word has length 33 [2022-03-01 17:09:37,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:37,226 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 138849 transitions. [2022-03-01 17:09:37,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,226 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 138849 transitions. [2022-03-01 17:09:37,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:37,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:37,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:37,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-01 17:09:37,511 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:37,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:37,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2014498387, now seen corresponding path program 32 times [2022-03-01 17:09:37,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:37,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493115022] [2022-03-01 17:09:37,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:37,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:37,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:37,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:37,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493115022] [2022-03-01 17:09:37,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493115022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:37,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:37,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:37,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215402699] [2022-03-01 17:09:37,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:37,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:37,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:37,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:37,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:37,821 INFO L87 Difference]: Start difference. First operand 24858 states and 138849 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:38,922 INFO L93 Difference]: Finished difference Result 63363 states and 338581 transitions. [2022-03-01 17:09:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:38,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:38,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:39,233 INFO L225 Difference]: With dead ends: 63363 [2022-03-01 17:09:39,233 INFO L226 Difference]: Without dead ends: 61124 [2022-03-01 17:09:39,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:39,234 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 344 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:39,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 294 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:39,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61124 states. [2022-03-01 17:09:40,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61124 to 24642. [2022-03-01 17:09:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24642 states, 24641 states have (on average 5.591047441256443) internal successors, (137769), 24641 states have internal predecessors, (137769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24642 states to 24642 states and 137769 transitions. [2022-03-01 17:09:40,661 INFO L78 Accepts]: Start accepts. Automaton has 24642 states and 137769 transitions. Word has length 33 [2022-03-01 17:09:40,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:40,661 INFO L470 AbstractCegarLoop]: Abstraction has 24642 states and 137769 transitions. [2022-03-01 17:09:40,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,661 INFO L276 IsEmpty]: Start isEmpty. Operand 24642 states and 137769 transitions. [2022-03-01 17:09:40,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:40,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:40,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:40,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-01 17:09:40,732 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:40,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:40,733 INFO L85 PathProgramCache]: Analyzing trace with hash -542736629, now seen corresponding path program 33 times [2022-03-01 17:09:40,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:40,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879819050] [2022-03-01 17:09:40,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:40,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:40,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:40,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879819050] [2022-03-01 17:09:40,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879819050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:40,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:40,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:40,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57388676] [2022-03-01 17:09:40,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:40,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:40,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:40,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:40,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:40,931 INFO L87 Difference]: Start difference. First operand 24642 states and 137769 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:41,907 INFO L93 Difference]: Finished difference Result 63197 states and 337690 transitions. [2022-03-01 17:09:41,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:41,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:41,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:42,435 INFO L225 Difference]: With dead ends: 63197 [2022-03-01 17:09:42,435 INFO L226 Difference]: Without dead ends: 61382 [2022-03-01 17:09:42,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:42,436 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 365 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:42,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 270 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:42,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61382 states. [2022-03-01 17:09:43,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61382 to 24862. [2022-03-01 17:09:43,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24862 states, 24861 states have (on average 5.581151200675757) internal successors, (138753), 24861 states have internal predecessors, (138753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24862 states to 24862 states and 138753 transitions. [2022-03-01 17:09:43,602 INFO L78 Accepts]: Start accepts. Automaton has 24862 states and 138753 transitions. Word has length 33 [2022-03-01 17:09:43,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:43,602 INFO L470 AbstractCegarLoop]: Abstraction has 24862 states and 138753 transitions. [2022-03-01 17:09:43,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,602 INFO L276 IsEmpty]: Start isEmpty. Operand 24862 states and 138753 transitions. [2022-03-01 17:09:43,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:43,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:43,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:43,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-01 17:09:43,667 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:43,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:43,668 INFO L85 PathProgramCache]: Analyzing trace with hash 568712395, now seen corresponding path program 34 times [2022-03-01 17:09:43,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:43,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374823375] [2022-03-01 17:09:43,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:43,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:44,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:44,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:44,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374823375] [2022-03-01 17:09:44,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374823375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:44,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:44,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:44,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424131380] [2022-03-01 17:09:44,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:44,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:44,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:44,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:44,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:44,098 INFO L87 Difference]: Start difference. First operand 24862 states and 138753 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:45,173 INFO L93 Difference]: Finished difference Result 63443 states and 338775 transitions. [2022-03-01 17:09:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:45,174 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:45,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:45,500 INFO L225 Difference]: With dead ends: 63443 [2022-03-01 17:09:45,501 INFO L226 Difference]: Without dead ends: 61162 [2022-03-01 17:09:45,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:45,501 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 367 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:45,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 299 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:45,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61162 states. [2022-03-01 17:09:46,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61162 to 24642. [2022-03-01 17:09:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24642 states, 24641 states have (on average 5.586664502252344) internal successors, (137661), 24641 states have internal predecessors, (137661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24642 states to 24642 states and 137661 transitions. [2022-03-01 17:09:46,997 INFO L78 Accepts]: Start accepts. Automaton has 24642 states and 137661 transitions. Word has length 33 [2022-03-01 17:09:46,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:46,997 INFO L470 AbstractCegarLoop]: Abstraction has 24642 states and 137661 transitions. [2022-03-01 17:09:46,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,997 INFO L276 IsEmpty]: Start isEmpty. Operand 24642 states and 137661 transitions. [2022-03-01 17:09:47,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:47,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:47,069 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] [2022-03-01 17:09:47,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-01 17:09:47,070 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:47,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash 236510291, now seen corresponding path program 35 times [2022-03-01 17:09:47,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:47,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772547005] [2022-03-01 17:09:47,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:47,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:47,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:47,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:47,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772547005] [2022-03-01 17:09:47,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772547005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:47,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:47,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:47,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839539540] [2022-03-01 17:09:47,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:47,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:47,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:47,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:47,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:47,300 INFO L87 Difference]: Start difference. First operand 24642 states and 137661 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:48,265 INFO L93 Difference]: Finished difference Result 63717 states and 340534 transitions. [2022-03-01 17:09:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:48,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:48,737 INFO L225 Difference]: With dead ends: 63717 [2022-03-01 17:09:48,737 INFO L226 Difference]: Without dead ends: 61694 [2022-03-01 17:09:48,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:48,738 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 366 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:48,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 278 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:48,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61694 states. [2022-03-01 17:09:49,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61694 to 24966. [2022-03-01 17:09:49,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24966 states, 24965 states have (on average 5.574724614460244) internal successors, (139173), 24965 states have internal predecessors, (139173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24966 states to 24966 states and 139173 transitions. [2022-03-01 17:09:49,948 INFO L78 Accepts]: Start accepts. Automaton has 24966 states and 139173 transitions. Word has length 33 [2022-03-01 17:09:49,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:49,948 INFO L470 AbstractCegarLoop]: Abstraction has 24966 states and 139173 transitions. [2022-03-01 17:09:49,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,948 INFO L276 IsEmpty]: Start isEmpty. Operand 24966 states and 139173 transitions. [2022-03-01 17:09:50,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:50,022 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:50,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:50,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-01 17:09:50,023 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:50,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1458455499, now seen corresponding path program 36 times [2022-03-01 17:09:50,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:50,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435807537] [2022-03-01 17:09:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:50,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:50,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:50,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435807537] [2022-03-01 17:09:50,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435807537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:50,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:50,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:50,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082100487] [2022-03-01 17:09:50,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:50,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:50,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:50,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:50,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:50,443 INFO L87 Difference]: Start difference. First operand 24966 states and 139173 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:51,502 INFO L93 Difference]: Finished difference Result 63755 states and 340355 transitions. [2022-03-01 17:09:51,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:51,503 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:51,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:52,066 INFO L225 Difference]: With dead ends: 63755 [2022-03-01 17:09:52,067 INFO L226 Difference]: Without dead ends: 61262 [2022-03-01 17:09:52,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:52,067 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 333 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:52,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 310 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:52,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61262 states. [2022-03-01 17:09:53,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61262 to 24534. [2022-03-01 17:09:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.591448253373008) internal successors, (137175), 24533 states have internal predecessors, (137175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137175 transitions. [2022-03-01 17:09:53,587 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137175 transitions. Word has length 33 [2022-03-01 17:09:53,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:53,587 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137175 transitions. [2022-03-01 17:09:53,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,587 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137175 transitions. [2022-03-01 17:09:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:53,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:53,900 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] [2022-03-01 17:09:53,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-01 17:09:53,901 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:53,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1880368949, now seen corresponding path program 37 times [2022-03-01 17:09:53,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:53,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345296957] [2022-03-01 17:09:53,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:53,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:54,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:54,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:54,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345296957] [2022-03-01 17:09:54,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345296957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:54,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:54,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:54,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493981195] [2022-03-01 17:09:54,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:54,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:54,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:54,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:54,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:54,149 INFO L87 Difference]: Start difference. First operand 24534 states and 137175 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:55,200 INFO L93 Difference]: Finished difference Result 63838 states and 340688 transitions. [2022-03-01 17:09:55,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:55,200 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:55,510 INFO L225 Difference]: With dead ends: 63838 [2022-03-01 17:09:55,510 INFO L226 Difference]: Without dead ends: 62023 [2022-03-01 17:09:55,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:55,511 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 374 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:55,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 295 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:09:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62023 states. [2022-03-01 17:09:56,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62023 to 24992. [2022-03-01 17:09:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24992 states, 24991 states have (on average 5.580248889600256) internal successors, (139456), 24991 states have internal predecessors, (139456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24992 states to 24992 states and 139456 transitions. [2022-03-01 17:09:56,905 INFO L78 Accepts]: Start accepts. Automaton has 24992 states and 139456 transitions. Word has length 33 [2022-03-01 17:09:56,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:56,905 INFO L470 AbstractCegarLoop]: Abstraction has 24992 states and 139456 transitions. [2022-03-01 17:09:56,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,905 INFO L276 IsEmpty]: Start isEmpty. Operand 24992 states and 139456 transitions. [2022-03-01 17:09:56,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:09:56,981 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:56,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:56,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-01 17:09:56,982 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:09:56,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:56,982 INFO L85 PathProgramCache]: Analyzing trace with hash -762489205, now seen corresponding path program 38 times [2022-03-01 17:09:56,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:56,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680062695] [2022-03-01 17:09:56,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:56,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:57,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:57,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680062695] [2022-03-01 17:09:57,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680062695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:57,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:57,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:09:57,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218156358] [2022-03-01 17:09:57,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:57,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:09:57,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:57,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:09:57,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:09:57,212 INFO L87 Difference]: Start difference. First operand 24992 states and 139456 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:58,202 INFO L93 Difference]: Finished difference Result 64213 states and 342351 transitions. [2022-03-01 17:09:58,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:09:58,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:09:58,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:58,708 INFO L225 Difference]: With dead ends: 64213 [2022-03-01 17:09:58,709 INFO L226 Difference]: Without dead ends: 61739 [2022-03-01 17:09:58,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:09:58,709 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 351 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:58,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 317 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:09:58,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61739 states. [2022-03-01 17:09:59,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61739 to 24708. [2022-03-01 17:09:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.5858663536649535) internal successors, (138010), 24707 states have internal predecessors, (138010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 138010 transitions. [2022-03-01 17:09:59,996 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 138010 transitions. Word has length 33 [2022-03-01 17:09:59,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:59,997 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 138010 transitions. [2022-03-01 17:09:59,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 138010 transitions. [2022-03-01 17:10:00,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:00,297 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:00,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:00,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-01 17:10:00,298 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:00,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:00,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1567801385, now seen corresponding path program 39 times [2022-03-01 17:10:00,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:00,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267717476] [2022-03-01 17:10:00,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:00,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:00,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:00,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267717476] [2022-03-01 17:10:00,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267717476] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:00,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:00,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:00,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618803995] [2022-03-01 17:10:00,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:00,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:00,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:00,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:00,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:00,542 INFO L87 Difference]: Start difference. First operand 24708 states and 138010 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:01,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:01,658 INFO L93 Difference]: Finished difference Result 63645 states and 339648 transitions. [2022-03-01 17:10:01,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:01,658 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:01,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:01,989 INFO L225 Difference]: With dead ends: 63645 [2022-03-01 17:10:01,989 INFO L226 Difference]: Without dead ends: 61830 [2022-03-01 17:10:01,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:01,989 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 361 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:01,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 325 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:10:02,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61830 states. [2022-03-01 17:10:03,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61830 to 24928. [2022-03-01 17:10:03,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24928 states, 24927 states have (on average 5.576042042764874) internal successors, (138994), 24927 states have internal predecessors, (138994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:03,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24928 states to 24928 states and 138994 transitions. [2022-03-01 17:10:03,441 INFO L78 Accepts]: Start accepts. Automaton has 24928 states and 138994 transitions. Word has length 33 [2022-03-01 17:10:03,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:03,441 INFO L470 AbstractCegarLoop]: Abstraction has 24928 states and 138994 transitions. [2022-03-01 17:10:03,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:03,441 INFO L276 IsEmpty]: Start isEmpty. Operand 24928 states and 138994 transitions. [2022-03-01 17:10:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:03,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:03,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:03,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-01 17:10:03,515 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:03,515 INFO L85 PathProgramCache]: Analyzing trace with hash 968894091, now seen corresponding path program 40 times [2022-03-01 17:10:03,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:03,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558522596] [2022-03-01 17:10:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:03,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:03,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:03,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558522596] [2022-03-01 17:10:03,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558522596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:03,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:03,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:03,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466616040] [2022-03-01 17:10:03,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:03,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:03,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:03,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:03,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:03,732 INFO L87 Difference]: Start difference. First operand 24928 states and 138994 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:04,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:04,673 INFO L93 Difference]: Finished difference Result 63891 states and 340733 transitions. [2022-03-01 17:10:04,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:04,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:04,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:05,185 INFO L225 Difference]: With dead ends: 63891 [2022-03-01 17:10:05,185 INFO L226 Difference]: Without dead ends: 61610 [2022-03-01 17:10:05,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:05,186 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 355 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:05,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 304 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:05,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61610 states. [2022-03-01 17:10:06,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61610 to 24708. [2022-03-01 17:10:06,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.581414174120694) internal successors, (137900), 24707 states have internal predecessors, (137900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 137900 transitions. [2022-03-01 17:10:06,427 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 137900 transitions. Word has length 33 [2022-03-01 17:10:06,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:06,427 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 137900 transitions. [2022-03-01 17:10:06,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:06,427 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 137900 transitions. [2022-03-01 17:10:06,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:06,714 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:06,714 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] [2022-03-01 17:10:06,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-01 17:10:06,715 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash -2106833845, now seen corresponding path program 41 times [2022-03-01 17:10:06,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:06,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894536303] [2022-03-01 17:10:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:06,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:06,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:06,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894536303] [2022-03-01 17:10:06,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894536303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:06,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:06,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:06,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443993935] [2022-03-01 17:10:06,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:06,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:06,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:06,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:06,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:06,968 INFO L87 Difference]: Start difference. First operand 24708 states and 137900 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:08,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:08,028 INFO L93 Difference]: Finished difference Result 64646 states and 344594 transitions. [2022-03-01 17:10:08,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:08,029 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:08,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:08,339 INFO L225 Difference]: With dead ends: 64646 [2022-03-01 17:10:08,339 INFO L226 Difference]: Without dead ends: 62456 [2022-03-01 17:10:08,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:08,340 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 386 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:08,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 279 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:08,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62456 states. [2022-03-01 17:10:09,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62456 to 25179. [2022-03-01 17:10:09,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25179 states, 25178 states have (on average 5.55989355786798) internal successors, (139987), 25178 states have internal predecessors, (139987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:09,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25179 states to 25179 states and 139987 transitions. [2022-03-01 17:10:09,837 INFO L78 Accepts]: Start accepts. Automaton has 25179 states and 139987 transitions. Word has length 33 [2022-03-01 17:10:09,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:09,837 INFO L470 AbstractCegarLoop]: Abstraction has 25179 states and 139987 transitions. [2022-03-01 17:10:09,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 25179 states and 139987 transitions. [2022-03-01 17:10:09,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:09,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:09,914 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] [2022-03-01 17:10:09,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-01 17:10:09,914 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:09,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:09,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1859750569, now seen corresponding path program 42 times [2022-03-01 17:10:09,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:09,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445840149] [2022-03-01 17:10:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:09,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:10,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:10,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445840149] [2022-03-01 17:10:10,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445840149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:10,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:10,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:10,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434697611] [2022-03-01 17:10:10,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:10,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:10,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:10,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:10,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:10,131 INFO L87 Difference]: Start difference. First operand 25179 states and 139987 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:11,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:11,091 INFO L93 Difference]: Finished difference Result 64517 states and 343609 transitions. [2022-03-01 17:10:11,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:11,091 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:11,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:11,617 INFO L225 Difference]: With dead ends: 64517 [2022-03-01 17:10:11,618 INFO L226 Difference]: Without dead ends: 61811 [2022-03-01 17:10:11,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:11,618 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 360 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:11,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 284 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:11,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61811 states. [2022-03-01 17:10:12,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61811 to 24534. [2022-03-01 17:10:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.587942770961562) internal successors, (137089), 24533 states have internal predecessors, (137089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:12,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137089 transitions. [2022-03-01 17:10:12,828 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137089 transitions. Word has length 33 [2022-03-01 17:10:12,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:12,828 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137089 transitions. [2022-03-01 17:10:12,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:12,829 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137089 transitions. [2022-03-01 17:10:13,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:13,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:13,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:13,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-01 17:10:13,142 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:13,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:13,142 INFO L85 PathProgramCache]: Analyzing trace with hash 530492081, now seen corresponding path program 43 times [2022-03-01 17:10:13,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:13,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120175031] [2022-03-01 17:10:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:13,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:13,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:13,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120175031] [2022-03-01 17:10:13,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120175031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:13,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:13,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:13,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731601115] [2022-03-01 17:10:13,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:13,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:13,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:13,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:13,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:13,411 INFO L87 Difference]: Start difference. First operand 24534 states and 137089 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:14,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:14,514 INFO L93 Difference]: Finished difference Result 64826 states and 346320 transitions. [2022-03-01 17:10:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:14,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:14,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:14,846 INFO L225 Difference]: With dead ends: 64826 [2022-03-01 17:10:14,846 INFO L226 Difference]: Without dead ends: 62803 [2022-03-01 17:10:14,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:14,849 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 341 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:14,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 333 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:14,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62803 states. [2022-03-01 17:10:16,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62803 to 25148. [2022-03-01 17:10:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25148 states, 25147 states have (on average 5.576808366803197) internal successors, (140240), 25147 states have internal predecessors, (140240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:16,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25148 states to 25148 states and 140240 transitions. [2022-03-01 17:10:16,282 INFO L78 Accepts]: Start accepts. Automaton has 25148 states and 140240 transitions. Word has length 33 [2022-03-01 17:10:16,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:16,283 INFO L470 AbstractCegarLoop]: Abstraction has 25148 states and 140240 transitions. [2022-03-01 17:10:16,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:16,283 INFO L276 IsEmpty]: Start isEmpty. Operand 25148 states and 140240 transitions. [2022-03-01 17:10:16,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:16,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:16,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:16,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-01 17:10:16,352 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:16,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:16,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1185479917, now seen corresponding path program 44 times [2022-03-01 17:10:16,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:16,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605569797] [2022-03-01 17:10:16,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:16,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:16,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:16,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605569797] [2022-03-01 17:10:16,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605569797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:16,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:16,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:16,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53621314] [2022-03-01 17:10:16,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:16,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:16,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:16,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:16,576 INFO L87 Difference]: Start difference. First operand 25148 states and 140240 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:17,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:17,588 INFO L93 Difference]: Finished difference Result 64993 states and 346719 transitions. [2022-03-01 17:10:17,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:17,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:17,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:18,353 INFO L225 Difference]: With dead ends: 64993 [2022-03-01 17:10:18,354 INFO L226 Difference]: Without dead ends: 62415 [2022-03-01 17:10:18,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:18,355 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 346 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:18,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 347 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:10:18,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62415 states. [2022-03-01 17:10:19,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62415 to 24760. [2022-03-01 17:10:19,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24760 states, 24759 states have (on average 5.58237408619088) internal successors, (138214), 24759 states have internal predecessors, (138214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24760 states to 24760 states and 138214 transitions. [2022-03-01 17:10:19,814 INFO L78 Accepts]: Start accepts. Automaton has 24760 states and 138214 transitions. Word has length 33 [2022-03-01 17:10:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:19,814 INFO L470 AbstractCegarLoop]: Abstraction has 24760 states and 138214 transitions. [2022-03-01 17:10:19,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 24760 states and 138214 transitions. [2022-03-01 17:10:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:20,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:20,131 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] [2022-03-01 17:10:20,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-01 17:10:20,131 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:20,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:20,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1611554707, now seen corresponding path program 45 times [2022-03-01 17:10:20,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:20,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289052991] [2022-03-01 17:10:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:20,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:20,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:20,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:20,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289052991] [2022-03-01 17:10:20,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289052991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:20,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:20,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:20,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852623600] [2022-03-01 17:10:20,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:20,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:20,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:20,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:20,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:20,363 INFO L87 Difference]: Start difference. First operand 24760 states and 138214 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:21,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:21,363 INFO L93 Difference]: Finished difference Result 64633 states and 345228 transitions. [2022-03-01 17:10:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:21,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:21,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:21,698 INFO L225 Difference]: With dead ends: 64633 [2022-03-01 17:10:21,698 INFO L226 Difference]: Without dead ends: 62610 [2022-03-01 17:10:21,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:21,699 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 347 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:21,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 291 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62610 states. [2022-03-01 17:10:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62610 to 25084. [2022-03-01 17:10:23,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25084 states, 25083 states have (on average 5.570545787983893) internal successors, (139726), 25083 states have internal predecessors, (139726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25084 states to 25084 states and 139726 transitions. [2022-03-01 17:10:23,168 INFO L78 Accepts]: Start accepts. Automaton has 25084 states and 139726 transitions. Word has length 33 [2022-03-01 17:10:23,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:23,168 INFO L470 AbstractCegarLoop]: Abstraction has 25084 states and 139726 transitions. [2022-03-01 17:10:23,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:23,168 INFO L276 IsEmpty]: Start isEmpty. Operand 25084 states and 139726 transitions. [2022-03-01 17:10:23,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:23,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:23,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:23,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-01 17:10:23,239 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:23,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1801151853, now seen corresponding path program 46 times [2022-03-01 17:10:23,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:23,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555305757] [2022-03-01 17:10:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:23,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:23,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:23,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555305757] [2022-03-01 17:10:23,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555305757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:23,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:23,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:23,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975788987] [2022-03-01 17:10:23,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:23,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:23,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:23,455 INFO L87 Difference]: Start difference. First operand 25084 states and 139726 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:24,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:24,404 INFO L93 Difference]: Finished difference Result 64671 states and 345049 transitions. [2022-03-01 17:10:24,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:24,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:24,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:24,913 INFO L225 Difference]: With dead ends: 64671 [2022-03-01 17:10:24,913 INFO L226 Difference]: Without dead ends: 62286 [2022-03-01 17:10:24,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:24,914 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 354 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:24,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 261 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:25,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62286 states. [2022-03-01 17:10:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62286 to 24760. [2022-03-01 17:10:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24760 states, 24759 states have (on average 5.575831010945515) internal successors, (138052), 24759 states have internal predecessors, (138052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24760 states to 24760 states and 138052 transitions. [2022-03-01 17:10:26,095 INFO L78 Accepts]: Start accepts. Automaton has 24760 states and 138052 transitions. Word has length 33 [2022-03-01 17:10:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:26,095 INFO L470 AbstractCegarLoop]: Abstraction has 24760 states and 138052 transitions. [2022-03-01 17:10:26,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 24760 states and 138052 transitions. [2022-03-01 17:10:26,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:26,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:26,430 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] [2022-03-01 17:10:26,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-01 17:10:26,430 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:26,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:26,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2039968373, now seen corresponding path program 47 times [2022-03-01 17:10:26,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:26,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482800441] [2022-03-01 17:10:26,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:26,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:26,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:26,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:26,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482800441] [2022-03-01 17:10:26,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482800441] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:26,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:26,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:26,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110958789] [2022-03-01 17:10:26,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:26,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:26,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:26,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:26,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:26,673 INFO L87 Difference]: Start difference. First operand 24760 states and 138052 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:27,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:27,701 INFO L93 Difference]: Finished difference Result 65114 states and 347170 transitions. [2022-03-01 17:10:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:27,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:27,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:28,037 INFO L225 Difference]: With dead ends: 65114 [2022-03-01 17:10:28,038 INFO L226 Difference]: Without dead ends: 62924 [2022-03-01 17:10:28,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:28,038 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 413 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:28,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 261 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:28,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62924 states. [2022-03-01 17:10:29,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62924 to 25231. [2022-03-01 17:10:29,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25231 states, 25230 states have (on average 5.554458977407847) internal successors, (140139), 25230 states have internal predecessors, (140139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:29,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25231 states to 25231 states and 140139 transitions. [2022-03-01 17:10:29,508 INFO L78 Accepts]: Start accepts. Automaton has 25231 states and 140139 transitions. Word has length 33 [2022-03-01 17:10:29,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:29,508 INFO L470 AbstractCegarLoop]: Abstraction has 25231 states and 140139 transitions. [2022-03-01 17:10:29,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:29,509 INFO L276 IsEmpty]: Start isEmpty. Operand 25231 states and 140139 transitions. [2022-03-01 17:10:29,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:29,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:29,577 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] [2022-03-01 17:10:29,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-01 17:10:29,577 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:29,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:29,577 INFO L85 PathProgramCache]: Analyzing trace with hash -3368621, now seen corresponding path program 48 times [2022-03-01 17:10:29,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:29,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823444333] [2022-03-01 17:10:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:29,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:29,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:29,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:29,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823444333] [2022-03-01 17:10:29,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823444333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:29,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:29,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:29,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058404089] [2022-03-01 17:10:29,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:29,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:29,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:29,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:29,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:29,771 INFO L87 Difference]: Start difference. First operand 25231 states and 140139 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:30,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:30,711 INFO L93 Difference]: Finished difference Result 64985 states and 346185 transitions. [2022-03-01 17:10:30,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:30,711 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:30,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:31,218 INFO L225 Difference]: With dead ends: 64985 [2022-03-01 17:10:31,218 INFO L226 Difference]: Without dead ends: 62141 [2022-03-01 17:10:31,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:31,219 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 343 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:31,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 286 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:31,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62141 states. [2022-03-01 17:10:32,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62141 to 24448. [2022-03-01 17:10:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 5.5932425246451505) internal successors, (136738), 24447 states have internal predecessors, (136738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:32,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 136738 transitions. [2022-03-01 17:10:32,411 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 136738 transitions. Word has length 33 [2022-03-01 17:10:32,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:32,411 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 136738 transitions. [2022-03-01 17:10:32,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:32,622 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 136738 transitions. [2022-03-01 17:10:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:32,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:32,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:32,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-01 17:10:32,736 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:32,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:32,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1603610477, now seen corresponding path program 49 times [2022-03-01 17:10:32,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:32,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558861183] [2022-03-01 17:10:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:32,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:32,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:32,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558861183] [2022-03-01 17:10:32,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558861183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:32,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:32,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:32,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838967661] [2022-03-01 17:10:32,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:32,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:32,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:32,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:32,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:32,957 INFO L87 Difference]: Start difference. First operand 24448 states and 136738 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:33,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:33,999 INFO L93 Difference]: Finished difference Result 61413 states and 328228 transitions. [2022-03-01 17:10:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:33,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:34,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:34,300 INFO L225 Difference]: With dead ends: 61413 [2022-03-01 17:10:34,300 INFO L226 Difference]: Without dead ends: 59598 [2022-03-01 17:10:34,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:34,301 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 357 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:34,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 334 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:10:34,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59598 states. [2022-03-01 17:10:35,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59598 to 24772. [2022-03-01 17:10:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24772 states, 24771 states have (on average 5.585483024504461) internal successors, (138358), 24771 states have internal predecessors, (138358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24772 states to 24772 states and 138358 transitions. [2022-03-01 17:10:35,640 INFO L78 Accepts]: Start accepts. Automaton has 24772 states and 138358 transitions. Word has length 33 [2022-03-01 17:10:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:35,641 INFO L470 AbstractCegarLoop]: Abstraction has 24772 states and 138358 transitions. [2022-03-01 17:10:35,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 24772 states and 138358 transitions. [2022-03-01 17:10:35,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:35,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:35,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:35,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-01 17:10:35,706 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:35,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:35,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1130649283, now seen corresponding path program 50 times [2022-03-01 17:10:35,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:35,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002569744] [2022-03-01 17:10:35,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:35,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:35,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:35,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002569744] [2022-03-01 17:10:35,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002569744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:35,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:35,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:35,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095885480] [2022-03-01 17:10:35,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:35,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:35,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:35,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:35,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:35,901 INFO L87 Difference]: Start difference. First operand 24772 states and 138358 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:36,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:36,782 INFO L93 Difference]: Finished difference Result 61621 states and 329172 transitions. [2022-03-01 17:10:36,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:36,782 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:36,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:37,265 INFO L225 Difference]: With dead ends: 61621 [2022-03-01 17:10:37,266 INFO L226 Difference]: Without dead ends: 59382 [2022-03-01 17:10:37,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:37,266 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 413 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:37,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 263 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:37,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59382 states. [2022-03-01 17:10:38,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59382 to 24556. [2022-03-01 17:10:38,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24556 states, 24555 states have (on average 5.592099368763999) internal successors, (137314), 24555 states have internal predecessors, (137314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:38,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24556 states to 24556 states and 137314 transitions. [2022-03-01 17:10:38,397 INFO L78 Accepts]: Start accepts. Automaton has 24556 states and 137314 transitions. Word has length 33 [2022-03-01 17:10:38,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:38,397 INFO L470 AbstractCegarLoop]: Abstraction has 24556 states and 137314 transitions. [2022-03-01 17:10:38,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:38,397 INFO L276 IsEmpty]: Start isEmpty. Operand 24556 states and 137314 transitions. [2022-03-01 17:10:38,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:38,462 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:38,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:38,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-01 17:10:38,462 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:38,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:38,463 INFO L85 PathProgramCache]: Analyzing trace with hash -522547851, now seen corresponding path program 51 times [2022-03-01 17:10:38,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:38,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010817577] [2022-03-01 17:10:38,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:38,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:38,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:38,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:38,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010817577] [2022-03-01 17:10:38,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010817577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:38,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:38,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:38,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648658320] [2022-03-01 17:10:38,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:38,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:38,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:38,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:38,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:38,885 INFO L87 Difference]: Start difference. First operand 24556 states and 137314 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:39,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:39,850 INFO L93 Difference]: Finished difference Result 61133 states and 326576 transitions. [2022-03-01 17:10:39,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:39,851 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:39,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:40,156 INFO L225 Difference]: With dead ends: 61133 [2022-03-01 17:10:40,157 INFO L226 Difference]: Without dead ends: 59318 [2022-03-01 17:10:40,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:40,157 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 363 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:40,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 285 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:40,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59318 states. [2022-03-01 17:10:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59318 to 24700. [2022-03-01 17:10:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24700 states, 24699 states have (on average 5.584760516620106) internal successors, (137938), 24699 states have internal predecessors, (137938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24700 states to 24700 states and 137938 transitions. [2022-03-01 17:10:41,532 INFO L78 Accepts]: Start accepts. Automaton has 24700 states and 137938 transitions. Word has length 33 [2022-03-01 17:10:41,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:41,532 INFO L470 AbstractCegarLoop]: Abstraction has 24700 states and 137938 transitions. [2022-03-01 17:10:41,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:41,532 INFO L276 IsEmpty]: Start isEmpty. Operand 24700 states and 137938 transitions. [2022-03-01 17:10:41,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:41,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:41,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:41,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-01 17:10:41,599 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:41,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:41,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1742104033, now seen corresponding path program 52 times [2022-03-01 17:10:41,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:41,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646731841] [2022-03-01 17:10:41,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:41,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:41,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:41,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646731841] [2022-03-01 17:10:41,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646731841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:41,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:41,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:41,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818879370] [2022-03-01 17:10:41,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:41,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:41,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:41,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:41,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:41,800 INFO L87 Difference]: Start difference. First operand 24700 states and 137938 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:42,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:42,737 INFO L93 Difference]: Finished difference Result 61133 states and 326432 transitions. [2022-03-01 17:10:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:42,737 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:42,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:43,015 INFO L225 Difference]: With dead ends: 61133 [2022-03-01 17:10:43,015 INFO L226 Difference]: Without dead ends: 59174 [2022-03-01 17:10:43,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:43,016 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 347 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:43,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 285 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:43,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59174 states. [2022-03-01 17:10:44,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59174 to 24556. [2022-03-01 17:10:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24556 states, 24555 states have (on average 5.589167175727957) internal successors, (137242), 24555 states have internal predecessors, (137242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:44,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24556 states to 24556 states and 137242 transitions. [2022-03-01 17:10:44,636 INFO L78 Accepts]: Start accepts. Automaton has 24556 states and 137242 transitions. Word has length 33 [2022-03-01 17:10:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:44,636 INFO L470 AbstractCegarLoop]: Abstraction has 24556 states and 137242 transitions. [2022-03-01 17:10:44,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 24556 states and 137242 transitions. [2022-03-01 17:10:44,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:44,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:44,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:44,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-01 17:10:44,697 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:44,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:44,698 INFO L85 PathProgramCache]: Analyzing trace with hash -758017757, now seen corresponding path program 53 times [2022-03-01 17:10:44,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:44,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077696021] [2022-03-01 17:10:44,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:44,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:44,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:44,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:44,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077696021] [2022-03-01 17:10:44,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077696021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:44,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:44,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:44,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341366132] [2022-03-01 17:10:44,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:44,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:44,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:44,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:44,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:44,936 INFO L87 Difference]: Start difference. First operand 24556 states and 137242 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:45,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:45,841 INFO L93 Difference]: Finished difference Result 61621 states and 329244 transitions. [2022-03-01 17:10:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:45,841 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:45,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:46,334 INFO L225 Difference]: With dead ends: 61621 [2022-03-01 17:10:46,334 INFO L226 Difference]: Without dead ends: 59598 [2022-03-01 17:10:46,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:46,335 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 363 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:46,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 291 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:46,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59598 states. [2022-03-01 17:10:47,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59598 to 24772. [2022-03-01 17:10:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24772 states, 24771 states have (on average 5.579669775140285) internal successors, (138214), 24771 states have internal predecessors, (138214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24772 states to 24772 states and 138214 transitions. [2022-03-01 17:10:47,467 INFO L78 Accepts]: Start accepts. Automaton has 24772 states and 138214 transitions. Word has length 33 [2022-03-01 17:10:47,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:47,468 INFO L470 AbstractCegarLoop]: Abstraction has 24772 states and 138214 transitions. [2022-03-01 17:10:47,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:47,468 INFO L276 IsEmpty]: Start isEmpty. Operand 24772 states and 138214 transitions. [2022-03-01 17:10:47,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:47,762 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:47,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:47,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-01 17:10:47,763 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:47,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:47,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1493612545, now seen corresponding path program 54 times [2022-03-01 17:10:47,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:47,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796233079] [2022-03-01 17:10:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:47,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:48,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:48,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:48,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796233079] [2022-03-01 17:10:48,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796233079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:48,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:48,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:48,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173047704] [2022-03-01 17:10:48,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:48,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:48,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:48,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:48,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:48,041 INFO L87 Difference]: Start difference. First operand 24772 states and 138214 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:49,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:49,063 INFO L93 Difference]: Finished difference Result 61413 states and 327868 transitions. [2022-03-01 17:10:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:49,064 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:49,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:49,365 INFO L225 Difference]: With dead ends: 61413 [2022-03-01 17:10:49,365 INFO L226 Difference]: Without dead ends: 59310 [2022-03-01 17:10:49,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:49,366 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 332 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:49,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 293 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:49,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59310 states. [2022-03-01 17:10:50,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59310 to 24484. [2022-03-01 17:10:50,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24483 states have (on average 5.592860352081035) internal successors, (136930), 24483 states have internal predecessors, (136930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:50,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 136930 transitions. [2022-03-01 17:10:50,721 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 136930 transitions. Word has length 33 [2022-03-01 17:10:50,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:50,722 INFO L470 AbstractCegarLoop]: Abstraction has 24484 states and 136930 transitions. [2022-03-01 17:10:50,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:50,722 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 136930 transitions. [2022-03-01 17:10:50,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:50,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:50,783 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] [2022-03-01 17:10:50,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-01 17:10:50,783 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:50,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:50,783 INFO L85 PathProgramCache]: Analyzing trace with hash -502226221, now seen corresponding path program 55 times [2022-03-01 17:10:50,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:50,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611652968] [2022-03-01 17:10:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:50,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:50,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:50,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:50,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611652968] [2022-03-01 17:10:50,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611652968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:50,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:50,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:50,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557054107] [2022-03-01 17:10:50,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:50,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:50,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:50,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:50,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:50,978 INFO L87 Difference]: Start difference. First operand 24484 states and 136930 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:51,905 INFO L93 Difference]: Finished difference Result 61879 states and 330809 transitions. [2022-03-01 17:10:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:51,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:51,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:52,190 INFO L225 Difference]: With dead ends: 61879 [2022-03-01 17:10:52,190 INFO L226 Difference]: Without dead ends: 60064 [2022-03-01 17:10:52,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:52,191 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 406 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:52,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 259 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:52,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60064 states. [2022-03-01 17:10:53,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60064 to 24808. [2022-03-01 17:10:53,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24808 states, 24807 states have (on average 5.5851171040432135) internal successors, (138550), 24807 states have internal predecessors, (138550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24808 states to 24808 states and 138550 transitions. [2022-03-01 17:10:53,567 INFO L78 Accepts]: Start accepts. Automaton has 24808 states and 138550 transitions. Word has length 33 [2022-03-01 17:10:53,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:53,567 INFO L470 AbstractCegarLoop]: Abstraction has 24808 states and 138550 transitions. [2022-03-01 17:10:53,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 24808 states and 138550 transitions. [2022-03-01 17:10:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:53,634 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:53,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:53,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-01 17:10:53,634 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:53,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:53,634 INFO L85 PathProgramCache]: Analyzing trace with hash -29265027, now seen corresponding path program 56 times [2022-03-01 17:10:53,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:53,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895211051] [2022-03-01 17:10:53,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:53,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:53,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:53,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895211051] [2022-03-01 17:10:53,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895211051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:53,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:53,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:53,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343595629] [2022-03-01 17:10:53,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:53,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:53,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:53,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:53,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:53,849 INFO L87 Difference]: Start difference. First operand 24808 states and 138550 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:55,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:55,025 INFO L93 Difference]: Finished difference Result 62087 states and 331753 transitions. [2022-03-01 17:10:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:55,025 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:55,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:55,331 INFO L225 Difference]: With dead ends: 62087 [2022-03-01 17:10:55,331 INFO L226 Difference]: Without dead ends: 59848 [2022-03-01 17:10:55,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:55,332 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 369 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:55,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 278 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:10:55,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59848 states. [2022-03-01 17:10:56,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59848 to 24592. [2022-03-01 17:10:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24592 states, 24591 states have (on average 5.590256597942337) internal successors, (137470), 24591 states have internal predecessors, (137470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24592 states to 24592 states and 137470 transitions. [2022-03-01 17:10:56,820 INFO L78 Accepts]: Start accepts. Automaton has 24592 states and 137470 transitions. Word has length 33 [2022-03-01 17:10:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:56,821 INFO L470 AbstractCegarLoop]: Abstraction has 24592 states and 137470 transitions. [2022-03-01 17:10:56,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 24592 states and 137470 transitions. [2022-03-01 17:10:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:56,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:56,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:56,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-01 17:10:56,890 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:56,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:56,890 INFO L85 PathProgramCache]: Analyzing trace with hash 267545299, now seen corresponding path program 57 times [2022-03-01 17:10:56,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:56,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924456709] [2022-03-01 17:10:56,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:56,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:10:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:10:57,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:10:57,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924456709] [2022-03-01 17:10:57,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924456709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:10:57,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:10:57,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:10:57,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584986517] [2022-03-01 17:10:57,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:10:57,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:10:57,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:10:57,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:10:57,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:10:57,089 INFO L87 Difference]: Start difference. First operand 24592 states and 137470 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:58,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:58,043 INFO L93 Difference]: Finished difference Result 61921 states and 330862 transitions. [2022-03-01 17:10:58,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:10:58,043 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:10:58,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:58,349 INFO L225 Difference]: With dead ends: 61921 [2022-03-01 17:10:58,349 INFO L226 Difference]: Without dead ends: 60106 [2022-03-01 17:10:58,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:10:58,350 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 358 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:58,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 325 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:10:58,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60106 states. [2022-03-01 17:10:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60106 to 24812. [2022-03-01 17:10:59,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24812 states, 24811 states have (on average 5.5803474265446775) internal successors, (138454), 24811 states have internal predecessors, (138454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24812 states to 24812 states and 138454 transitions. [2022-03-01 17:10:59,753 INFO L78 Accepts]: Start accepts. Automaton has 24812 states and 138454 transitions. Word has length 33 [2022-03-01 17:10:59,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:59,753 INFO L470 AbstractCegarLoop]: Abstraction has 24812 states and 138454 transitions. [2022-03-01 17:10:59,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 24812 states and 138454 transitions. [2022-03-01 17:10:59,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:10:59,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:10:59,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:10:59,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-01 17:10:59,822 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:10:59,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:10:59,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1378994323, now seen corresponding path program 58 times [2022-03-01 17:10:59,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:10:59,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074529360] [2022-03-01 17:10:59,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:10:59,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:10:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:00,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:00,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:00,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074529360] [2022-03-01 17:11:00,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074529360] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:00,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:00,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:00,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060309077] [2022-03-01 17:11:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:00,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:00,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:00,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:00,015 INFO L87 Difference]: Start difference. First operand 24812 states and 138454 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:00,951 INFO L93 Difference]: Finished difference Result 62167 states and 331947 transitions. [2022-03-01 17:11:00,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:00,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:00,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:01,538 INFO L225 Difference]: With dead ends: 62167 [2022-03-01 17:11:01,538 INFO L226 Difference]: Without dead ends: 59886 [2022-03-01 17:11:01,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:01,539 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 382 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:01,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 271 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:11:01,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59886 states. [2022-03-01 17:11:02,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59886 to 24592. [2022-03-01 17:11:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24592 states, 24591 states have (on average 5.585864747265259) internal successors, (137362), 24591 states have internal predecessors, (137362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:02,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24592 states to 24592 states and 137362 transitions. [2022-03-01 17:11:02,774 INFO L78 Accepts]: Start accepts. Automaton has 24592 states and 137362 transitions. Word has length 33 [2022-03-01 17:11:02,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:02,774 INFO L470 AbstractCegarLoop]: Abstraction has 24592 states and 137362 transitions. [2022-03-01 17:11:02,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:02,775 INFO L276 IsEmpty]: Start isEmpty. Operand 24592 states and 137362 transitions. [2022-03-01 17:11:03,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:03,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:03,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:03,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-01 17:11:03,108 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:03,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:03,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1046792219, now seen corresponding path program 59 times [2022-03-01 17:11:03,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:03,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132543377] [2022-03-01 17:11:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:03,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:03,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:03,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:03,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132543377] [2022-03-01 17:11:03,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132543377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:03,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:03,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:03,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448991752] [2022-03-01 17:11:03,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:03,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:03,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:03,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:03,360 INFO L87 Difference]: Start difference. First operand 24592 states and 137362 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:04,426 INFO L93 Difference]: Finished difference Result 62441 states and 333706 transitions. [2022-03-01 17:11:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:04,426 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:04,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:04,738 INFO L225 Difference]: With dead ends: 62441 [2022-03-01 17:11:04,738 INFO L226 Difference]: Without dead ends: 60418 [2022-03-01 17:11:04,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:04,738 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 376 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:04,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 274 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60418 states. [2022-03-01 17:11:06,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60418 to 24916. [2022-03-01 17:11:06,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24916 states, 24915 states have (on average 5.573911298414609) internal successors, (138874), 24915 states have internal predecessors, (138874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:06,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 138874 transitions. [2022-03-01 17:11:06,213 INFO L78 Accepts]: Start accepts. Automaton has 24916 states and 138874 transitions. Word has length 33 [2022-03-01 17:11:06,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:06,213 INFO L470 AbstractCegarLoop]: Abstraction has 24916 states and 138874 transitions. [2022-03-01 17:11:06,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states and 138874 transitions. [2022-03-01 17:11:06,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:06,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:06,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:06,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-01 17:11:06,285 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:06,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:06,286 INFO L85 PathProgramCache]: Analyzing trace with hash -648173571, now seen corresponding path program 60 times [2022-03-01 17:11:06,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:06,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486358112] [2022-03-01 17:11:06,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:06,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:06,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:06,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:06,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486358112] [2022-03-01 17:11:06,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486358112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:06,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:06,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:06,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012074400] [2022-03-01 17:11:06,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:06,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:06,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:06,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:06,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:06,482 INFO L87 Difference]: Start difference. First operand 24916 states and 138874 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:07,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:07,433 INFO L93 Difference]: Finished difference Result 62479 states and 333527 transitions. [2022-03-01 17:11:07,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:07,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:08,032 INFO L225 Difference]: With dead ends: 62479 [2022-03-01 17:11:08,033 INFO L226 Difference]: Without dead ends: 59986 [2022-03-01 17:11:08,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:08,034 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 367 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:08,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 278 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:08,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59986 states. [2022-03-01 17:11:09,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59986 to 24484. [2022-03-01 17:11:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24483 states have (on average 5.591389944042805) internal successors, (136894), 24483 states have internal predecessors, (136894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:09,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 136894 transitions. [2022-03-01 17:11:09,458 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 136894 transitions. Word has length 33 [2022-03-01 17:11:09,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:09,459 INFO L470 AbstractCegarLoop]: Abstraction has 24484 states and 136894 transitions. [2022-03-01 17:11:09,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:09,459 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 136894 transitions. [2022-03-01 17:11:09,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:09,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:09,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:09,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-01 17:11:09,536 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:09,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:09,537 INFO L85 PathProgramCache]: Analyzing trace with hash -114221259, now seen corresponding path program 61 times [2022-03-01 17:11:09,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:09,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621467306] [2022-03-01 17:11:09,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:09,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:09,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:09,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621467306] [2022-03-01 17:11:09,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621467306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:09,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:09,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:09,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504210971] [2022-03-01 17:11:09,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:09,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:09,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:09,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:09,751 INFO L87 Difference]: Start difference. First operand 24484 states and 136894 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:10,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:10,763 INFO L93 Difference]: Finished difference Result 61179 states and 326753 transitions. [2022-03-01 17:11:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:10,763 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:10,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:11,354 INFO L225 Difference]: With dead ends: 61179 [2022-03-01 17:11:11,354 INFO L226 Difference]: Without dead ends: 59364 [2022-03-01 17:11:11,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:11,355 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 360 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:11,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 307 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:11,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59364 states. [2022-03-01 17:11:12,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59364 to 24700. [2022-03-01 17:11:12,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24700 states, 24699 states have (on average 5.584760516620106) internal successors, (137938), 24699 states have internal predecessors, (137938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:12,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24700 states to 24700 states and 137938 transitions. [2022-03-01 17:11:12,825 INFO L78 Accepts]: Start accepts. Automaton has 24700 states and 137938 transitions. Word has length 33 [2022-03-01 17:11:12,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:12,825 INFO L470 AbstractCegarLoop]: Abstraction has 24700 states and 137938 transitions. [2022-03-01 17:11:12,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:12,825 INFO L276 IsEmpty]: Start isEmpty. Operand 24700 states and 137938 transitions. [2022-03-01 17:11:12,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:12,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:12,914 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] [2022-03-01 17:11:12,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-01 17:11:12,914 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:12,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2144536671, now seen corresponding path program 62 times [2022-03-01 17:11:12,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:12,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245799690] [2022-03-01 17:11:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:12,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:13,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:13,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245799690] [2022-03-01 17:11:13,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245799690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:13,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:13,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:13,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209448567] [2022-03-01 17:11:13,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:13,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:13,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:13,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:13,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:13,122 INFO L87 Difference]: Start difference. First operand 24700 states and 137938 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:14,111 INFO L93 Difference]: Finished difference Result 61179 states and 326609 transitions. [2022-03-01 17:11:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:14,112 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:14,410 INFO L225 Difference]: With dead ends: 61179 [2022-03-01 17:11:14,411 INFO L226 Difference]: Without dead ends: 59220 [2022-03-01 17:11:14,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:14,411 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 351 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:14,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 306 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:14,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59220 states. [2022-03-01 17:11:15,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59220 to 24556. [2022-03-01 17:11:15,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24556 states, 24555 states have (on average 5.589167175727957) internal successors, (137242), 24555 states have internal predecessors, (137242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:15,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24556 states to 24556 states and 137242 transitions. [2022-03-01 17:11:15,809 INFO L78 Accepts]: Start accepts. Automaton has 24556 states and 137242 transitions. Word has length 33 [2022-03-01 17:11:15,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:15,809 INFO L470 AbstractCegarLoop]: Abstraction has 24556 states and 137242 transitions. [2022-03-01 17:11:15,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:15,809 INFO L276 IsEmpty]: Start isEmpty. Operand 24556 states and 137242 transitions. [2022-03-01 17:11:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:15,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:15,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:15,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-01 17:11:15,874 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:15,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1935256685, now seen corresponding path program 63 times [2022-03-01 17:11:15,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:15,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288241942] [2022-03-01 17:11:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:15,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:16,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:16,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:16,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288241942] [2022-03-01 17:11:16,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288241942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:16,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:16,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:16,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147008235] [2022-03-01 17:11:16,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:16,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:16,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:16,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:16,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:16,068 INFO L87 Difference]: Start difference. First operand 24556 states and 137242 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:17,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:17,042 INFO L93 Difference]: Finished difference Result 61501 states and 328422 transitions. [2022-03-01 17:11:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:17,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:17,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:17,544 INFO L225 Difference]: With dead ends: 61501 [2022-03-01 17:11:17,544 INFO L226 Difference]: Without dead ends: 59686 [2022-03-01 17:11:17,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:17,545 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 340 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:17,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 296 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:17,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59686 states. [2022-03-01 17:11:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59686 to 24776. [2022-03-01 17:11:18,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24776 states, 24775 states have (on average 5.57925327951564) internal successors, (138226), 24775 states have internal predecessors, (138226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24776 states to 24776 states and 138226 transitions. [2022-03-01 17:11:18,788 INFO L78 Accepts]: Start accepts. Automaton has 24776 states and 138226 transitions. Word has length 33 [2022-03-01 17:11:18,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:18,788 INFO L470 AbstractCegarLoop]: Abstraction has 24776 states and 138226 transitions. [2022-03-01 17:11:18,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:18,788 INFO L276 IsEmpty]: Start isEmpty. Operand 24776 states and 138226 transitions. [2022-03-01 17:11:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:18,863 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:18,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:18,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-01 17:11:18,863 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:18,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:18,863 INFO L85 PathProgramCache]: Analyzing trace with hash 898092277, now seen corresponding path program 64 times [2022-03-01 17:11:18,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:18,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827215424] [2022-03-01 17:11:18,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:18,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:19,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:19,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827215424] [2022-03-01 17:11:19,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827215424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:19,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:19,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:19,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313600710] [2022-03-01 17:11:19,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:19,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:19,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:19,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:19,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:19,314 INFO L87 Difference]: Start difference. First operand 24776 states and 138226 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:20,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:20,394 INFO L93 Difference]: Finished difference Result 61747 states and 329507 transitions. [2022-03-01 17:11:20,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:20,395 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:20,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:20,713 INFO L225 Difference]: With dead ends: 61747 [2022-03-01 17:11:20,714 INFO L226 Difference]: Without dead ends: 59466 [2022-03-01 17:11:20,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:20,714 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 334 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:20,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 388 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:11:20,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59466 states. [2022-03-01 17:11:21,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59466 to 24556. [2022-03-01 17:11:21,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24556 states, 24555 states have (on average 5.586234982691916) internal successors, (137170), 24555 states have internal predecessors, (137170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:22,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24556 states to 24556 states and 137170 transitions. [2022-03-01 17:11:22,218 INFO L78 Accepts]: Start accepts. Automaton has 24556 states and 137170 transitions. Word has length 33 [2022-03-01 17:11:22,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:22,218 INFO L470 AbstractCegarLoop]: Abstraction has 24556 states and 137170 transitions. [2022-03-01 17:11:22,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:22,218 INFO L276 IsEmpty]: Start isEmpty. Operand 24556 states and 137170 transitions. [2022-03-01 17:11:22,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:22,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:22,282 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] [2022-03-01 17:11:22,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-01 17:11:22,282 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:22,283 INFO L85 PathProgramCache]: Analyzing trace with hash 363048865, now seen corresponding path program 65 times [2022-03-01 17:11:22,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:22,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173077581] [2022-03-01 17:11:22,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:22,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:22,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:22,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:22,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173077581] [2022-03-01 17:11:22,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173077581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:22,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:22,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:22,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801943824] [2022-03-01 17:11:22,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:22,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:22,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:22,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:22,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:22,475 INFO L87 Difference]: Start difference. First operand 24556 states and 137170 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:23,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:23,444 INFO L93 Difference]: Finished difference Result 61501 states and 328350 transitions. [2022-03-01 17:11:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:23,445 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:23,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:23,727 INFO L225 Difference]: With dead ends: 61501 [2022-03-01 17:11:23,727 INFO L226 Difference]: Without dead ends: 59686 [2022-03-01 17:11:23,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:23,727 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 349 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:23,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 284 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:24,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59686 states. [2022-03-01 17:11:24,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59686 to 24776. [2022-03-01 17:11:24,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24776 states, 24775 states have (on average 5.576347124117054) internal successors, (138154), 24775 states have internal predecessors, (138154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:25,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24776 states to 24776 states and 138154 transitions. [2022-03-01 17:11:25,072 INFO L78 Accepts]: Start accepts. Automaton has 24776 states and 138154 transitions. Word has length 33 [2022-03-01 17:11:25,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:25,072 INFO L470 AbstractCegarLoop]: Abstraction has 24776 states and 138154 transitions. [2022-03-01 17:11:25,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:25,072 INFO L276 IsEmpty]: Start isEmpty. Operand 24776 states and 138154 transitions. [2022-03-01 17:11:25,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:25,139 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:25,139 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] [2022-03-01 17:11:25,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-01 17:11:25,139 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:25,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:25,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1292475521, now seen corresponding path program 66 times [2022-03-01 17:11:25,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:25,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504635795] [2022-03-01 17:11:25,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:25,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:25,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:25,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504635795] [2022-03-01 17:11:25,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504635795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:25,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:25,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:25,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890604012] [2022-03-01 17:11:25,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:25,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:25,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:25,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:25,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:25,332 INFO L87 Difference]: Start difference. First operand 24776 states and 138154 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:26,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:26,368 INFO L93 Difference]: Finished difference Result 61747 states and 329435 transitions. [2022-03-01 17:11:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:26,368 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:26,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:26,954 INFO L225 Difference]: With dead ends: 61747 [2022-03-01 17:11:26,954 INFO L226 Difference]: Without dead ends: 59394 [2022-03-01 17:11:26,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:26,955 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 321 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:26,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 332 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:11:27,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59394 states. [2022-03-01 17:11:28,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59394 to 24484. [2022-03-01 17:11:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24483 states have (on average 5.589919536004575) internal successors, (136858), 24483 states have internal predecessors, (136858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:28,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 136858 transitions. [2022-03-01 17:11:28,405 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 136858 transitions. Word has length 33 [2022-03-01 17:11:28,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:28,406 INFO L470 AbstractCegarLoop]: Abstraction has 24484 states and 136858 transitions. [2022-03-01 17:11:28,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:28,406 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 136858 transitions. [2022-03-01 17:11:28,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:28,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:28,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:28,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-01 17:11:28,480 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:28,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:28,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1042748829, now seen corresponding path program 67 times [2022-03-01 17:11:28,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:28,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693540095] [2022-03-01 17:11:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:28,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:28,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:28,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693540095] [2022-03-01 17:11:28,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693540095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:28,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:28,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:28,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226690927] [2022-03-01 17:11:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:28,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:28,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:28,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:28,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:28,683 INFO L87 Difference]: Start difference. First operand 24484 states and 136858 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:29,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:29,625 INFO L93 Difference]: Finished difference Result 62087 states and 331897 transitions. [2022-03-01 17:11:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:29,625 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:29,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:29,922 INFO L225 Difference]: With dead ends: 62087 [2022-03-01 17:11:29,922 INFO L226 Difference]: Without dead ends: 60064 [2022-03-01 17:11:29,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:29,923 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 391 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:29,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 268 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60064 states. [2022-03-01 17:11:31,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60064 to 24808. [2022-03-01 17:11:31,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24808 states, 24807 states have (on average 5.582214697464425) internal successors, (138478), 24807 states have internal predecessors, (138478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:31,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24808 states to 24808 states and 138478 transitions. [2022-03-01 17:11:31,432 INFO L78 Accepts]: Start accepts. Automaton has 24808 states and 138478 transitions. Word has length 33 [2022-03-01 17:11:31,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:31,433 INFO L470 AbstractCegarLoop]: Abstraction has 24808 states and 138478 transitions. [2022-03-01 17:11:31,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:31,433 INFO L276 IsEmpty]: Start isEmpty. Operand 24808 states and 138478 transitions. [2022-03-01 17:11:31,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:31,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:31,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:31,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-01 17:11:31,508 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:31,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:31,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1208881473, now seen corresponding path program 68 times [2022-03-01 17:11:31,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:31,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799062936] [2022-03-01 17:11:31,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:31,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:31,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:31,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:31,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799062936] [2022-03-01 17:11:31,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799062936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:31,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:31,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:31,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150203543] [2022-03-01 17:11:31,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:31,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:31,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:31,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:31,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:31,703 INFO L87 Difference]: Start difference. First operand 24808 states and 138478 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:32,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:32,671 INFO L93 Difference]: Finished difference Result 61879 states and 330521 transitions. [2022-03-01 17:11:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:32,671 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:33,331 INFO L225 Difference]: With dead ends: 61879 [2022-03-01 17:11:33,331 INFO L226 Difference]: Without dead ends: 59848 [2022-03-01 17:11:33,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:33,332 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 375 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:33,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 336 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:33,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59848 states. [2022-03-01 17:11:34,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59848 to 24592. [2022-03-01 17:11:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24592 states, 24591 states have (on average 5.587328697490952) internal successors, (137398), 24591 states have internal predecessors, (137398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24592 states to 24592 states and 137398 transitions. [2022-03-01 17:11:34,774 INFO L78 Accepts]: Start accepts. Automaton has 24592 states and 137398 transitions. Word has length 33 [2022-03-01 17:11:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:34,774 INFO L470 AbstractCegarLoop]: Abstraction has 24592 states and 137398 transitions. [2022-03-01 17:11:34,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:34,774 INFO L276 IsEmpty]: Start isEmpty. Operand 24592 states and 137398 transitions. [2022-03-01 17:11:34,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:34,840 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:34,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:34,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-01 17:11:34,840 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:34,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:34,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1431183041, now seen corresponding path program 69 times [2022-03-01 17:11:34,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:34,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971441012] [2022-03-01 17:11:34,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:34,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:35,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:35,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971441012] [2022-03-01 17:11:35,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971441012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:35,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:35,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:35,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884374235] [2022-03-01 17:11:35,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:35,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:35,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:35,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:35,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:35,037 INFO L87 Difference]: Start difference. First operand 24592 states and 137398 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:36,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:36,048 INFO L93 Difference]: Finished difference Result 62441 states and 333742 transitions. [2022-03-01 17:11:36,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:36,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:36,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:36,685 INFO L225 Difference]: With dead ends: 62441 [2022-03-01 17:11:36,685 INFO L226 Difference]: Without dead ends: 60418 [2022-03-01 17:11:36,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:36,686 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 359 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:36,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 269 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:36,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60418 states. [2022-03-01 17:11:37,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60418 to 24916. [2022-03-01 17:11:37,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24916 states, 24915 states have (on average 5.575356211117801) internal successors, (138910), 24915 states have internal predecessors, (138910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:38,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 138910 transitions. [2022-03-01 17:11:38,161 INFO L78 Accepts]: Start accepts. Automaton has 24916 states and 138910 transitions. Word has length 33 [2022-03-01 17:11:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:38,161 INFO L470 AbstractCegarLoop]: Abstraction has 24916 states and 138910 transitions. [2022-03-01 17:11:38,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:38,162 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states and 138910 transitions. [2022-03-01 17:11:38,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:38,237 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:38,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:38,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-01 17:11:38,237 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:38,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:38,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2146216255, now seen corresponding path program 70 times [2022-03-01 17:11:38,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:38,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804557780] [2022-03-01 17:11:38,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:38,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:38,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:38,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804557780] [2022-03-01 17:11:38,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804557780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:38,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:38,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:38,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320302870] [2022-03-01 17:11:38,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:38,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:38,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:38,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:38,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:38,431 INFO L87 Difference]: Start difference. First operand 24916 states and 138910 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:39,357 INFO L93 Difference]: Finished difference Result 62479 states and 333563 transitions. [2022-03-01 17:11:39,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:39,358 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:39,644 INFO L225 Difference]: With dead ends: 62479 [2022-03-01 17:11:39,645 INFO L226 Difference]: Without dead ends: 60094 [2022-03-01 17:11:39,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:39,645 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 372 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:39,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 269 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:39,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60094 states. [2022-03-01 17:11:40,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60094 to 24592. [2022-03-01 17:11:41,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24592 states, 24591 states have (on average 5.582936846813875) internal successors, (137290), 24591 states have internal predecessors, (137290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:41,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24592 states to 24592 states and 137290 transitions. [2022-03-01 17:11:41,121 INFO L78 Accepts]: Start accepts. Automaton has 24592 states and 137290 transitions. Word has length 33 [2022-03-01 17:11:41,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:41,121 INFO L470 AbstractCegarLoop]: Abstraction has 24592 states and 137290 transitions. [2022-03-01 17:11:41,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:41,121 INFO L276 IsEmpty]: Start isEmpty. Operand 24592 states and 137290 transitions. [2022-03-01 17:11:41,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:41,191 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:41,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:41,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-01 17:11:41,192 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:41,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:41,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1881436641, now seen corresponding path program 71 times [2022-03-01 17:11:41,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:41,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779078998] [2022-03-01 17:11:41,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:41,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:41,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:41,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:41,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779078998] [2022-03-01 17:11:41,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779078998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:41,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:41,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:41,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29213854] [2022-03-01 17:11:41,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:41,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:41,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:41,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:41,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:41,386 INFO L87 Difference]: Start difference. First operand 24592 states and 137290 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:42,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:42,376 INFO L93 Difference]: Finished difference Result 61921 states and 330682 transitions. [2022-03-01 17:11:42,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:42,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:42,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:42,887 INFO L225 Difference]: With dead ends: 61921 [2022-03-01 17:11:42,888 INFO L226 Difference]: Without dead ends: 60106 [2022-03-01 17:11:42,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:42,888 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 332 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:42,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 308 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:42,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60106 states. [2022-03-01 17:11:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60106 to 24812. [2022-03-01 17:11:43,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24812 states, 24811 states have (on average 5.573092579904075) internal successors, (138274), 24811 states have internal predecessors, (138274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24812 states to 24812 states and 138274 transitions. [2022-03-01 17:11:44,081 INFO L78 Accepts]: Start accepts. Automaton has 24812 states and 138274 transitions. Word has length 33 [2022-03-01 17:11:44,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:44,081 INFO L470 AbstractCegarLoop]: Abstraction has 24812 states and 138274 transitions. [2022-03-01 17:11:44,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:44,081 INFO L276 IsEmpty]: Start isEmpty. Operand 24812 states and 138274 transitions. [2022-03-01 17:11:44,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:44,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:44,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:44,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-01 17:11:44,373 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:44,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1663085055, now seen corresponding path program 72 times [2022-03-01 17:11:44,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:44,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441010600] [2022-03-01 17:11:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:44,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:44,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:44,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441010600] [2022-03-01 17:11:44,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441010600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:44,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:44,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:44,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051261547] [2022-03-01 17:11:44,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:44,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:44,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:44,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:44,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:44,607 INFO L87 Difference]: Start difference. First operand 24812 states and 138274 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:45,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:45,667 INFO L93 Difference]: Finished difference Result 62167 states and 331767 transitions. [2022-03-01 17:11:45,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:45,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:45,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:45,988 INFO L225 Difference]: With dead ends: 62167 [2022-03-01 17:11:45,988 INFO L226 Difference]: Without dead ends: 59742 [2022-03-01 17:11:45,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:45,988 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 375 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:45,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 282 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:46,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59742 states. [2022-03-01 17:11:47,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59742 to 24448. [2022-03-01 17:11:47,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 5.59250623798421) internal successors, (136720), 24447 states have internal predecessors, (136720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 136720 transitions. [2022-03-01 17:11:47,464 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 136720 transitions. Word has length 33 [2022-03-01 17:11:47,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:47,464 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 136720 transitions. [2022-03-01 17:11:47,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:47,464 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 136720 transitions. [2022-03-01 17:11:47,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:47,532 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:47,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:47,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-01 17:11:47,532 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:47,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1918630999, now seen corresponding path program 73 times [2022-03-01 17:11:47,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:47,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416768802] [2022-03-01 17:11:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:47,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:47,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:47,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:47,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416768802] [2022-03-01 17:11:47,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416768802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:47,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:47,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:47,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094481833] [2022-03-01 17:11:47,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:47,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:47,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:47,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:47,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:47,733 INFO L87 Difference]: Start difference. First operand 24448 states and 136720 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:48,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:48,665 INFO L93 Difference]: Finished difference Result 62114 states and 331264 transitions. [2022-03-01 17:11:48,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:48,666 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:48,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:48,943 INFO L225 Difference]: With dead ends: 62114 [2022-03-01 17:11:48,944 INFO L226 Difference]: Without dead ends: 60299 [2022-03-01 17:11:48,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:49,163 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 367 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:49,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 279 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:49,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60299 states. [2022-03-01 17:11:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60299 to 24764. [2022-03-01 17:11:50,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24764 states, 24763 states have (on average 5.5867221257521305) internal successors, (138344), 24763 states have internal predecessors, (138344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:50,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24764 states to 24764 states and 138344 transitions. [2022-03-01 17:11:50,358 INFO L78 Accepts]: Start accepts. Automaton has 24764 states and 138344 transitions. Word has length 33 [2022-03-01 17:11:50,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:50,358 INFO L470 AbstractCegarLoop]: Abstraction has 24764 states and 138344 transitions. [2022-03-01 17:11:50,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:50,358 INFO L276 IsEmpty]: Start isEmpty. Operand 24764 states and 138344 transitions. [2022-03-01 17:11:50,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:50,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:50,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:11:50,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-01 17:11:50,426 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:50,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash -111684413, now seen corresponding path program 74 times [2022-03-01 17:11:50,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:50,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3041314] [2022-03-01 17:11:50,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:50,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:50,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:50,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3041314] [2022-03-01 17:11:50,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3041314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:50,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:50,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:50,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925478488] [2022-03-01 17:11:50,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:50,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:50,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:50,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:50,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:50,618 INFO L87 Difference]: Start difference. First operand 24764 states and 138344 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:51,874 INFO L93 Difference]: Finished difference Result 62114 states and 331120 transitions. [2022-03-01 17:11:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:51,874 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:52,187 INFO L225 Difference]: With dead ends: 62114 [2022-03-01 17:11:52,187 INFO L226 Difference]: Without dead ends: 60155 [2022-03-01 17:11:52,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:52,188 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 364 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:52,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 283 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:11:52,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60155 states. [2022-03-01 17:11:53,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60155 to 24620. [2022-03-01 17:11:53,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24620 states, 24619 states have (on average 5.591128802957066) internal successors, (137648), 24619 states have internal predecessors, (137648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:53,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24620 states to 24620 states and 137648 transitions. [2022-03-01 17:11:53,745 INFO L78 Accepts]: Start accepts. Automaton has 24620 states and 137648 transitions. Word has length 33 [2022-03-01 17:11:53,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:53,745 INFO L470 AbstractCegarLoop]: Abstraction has 24620 states and 137648 transitions. [2022-03-01 17:11:53,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:53,746 INFO L276 IsEmpty]: Start isEmpty. Operand 24620 states and 137648 transitions. [2022-03-01 17:11:53,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:53,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:53,823 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] [2022-03-01 17:11:53,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-01 17:11:53,824 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:53,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1366878261, now seen corresponding path program 75 times [2022-03-01 17:11:53,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:53,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582306552] [2022-03-01 17:11:53,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:53,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:54,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:54,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582306552] [2022-03-01 17:11:54,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582306552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:54,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:54,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:54,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534436937] [2022-03-01 17:11:54,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:54,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:54,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:54,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:54,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:54,019 INFO L87 Difference]: Start difference. First operand 24620 states and 137648 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:55,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:55,044 INFO L93 Difference]: Finished difference Result 62629 states and 333831 transitions. [2022-03-01 17:11:55,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:55,044 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:55,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:55,357 INFO L225 Difference]: With dead ends: 62629 [2022-03-01 17:11:55,357 INFO L226 Difference]: Without dead ends: 60814 [2022-03-01 17:11:55,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:55,358 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 347 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:55,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 298 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:55,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60814 states. [2022-03-01 17:11:56,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60814 to 24904. [2022-03-01 17:11:56,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24904 states, 24903 states have (on average 5.579729349877525) internal successors, (138952), 24903 states have internal predecessors, (138952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:56,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24904 states to 24904 states and 138952 transitions. [2022-03-01 17:11:56,836 INFO L78 Accepts]: Start accepts. Automaton has 24904 states and 138952 transitions. Word has length 33 [2022-03-01 17:11:56,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:11:56,836 INFO L470 AbstractCegarLoop]: Abstraction has 24904 states and 138952 transitions. [2022-03-01 17:11:56,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:56,836 INFO L276 IsEmpty]: Start isEmpty. Operand 24904 states and 138952 transitions. [2022-03-01 17:11:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:11:56,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:11:56,906 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] [2022-03-01 17:11:56,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-01 17:11:56,906 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:11:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:11:56,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1199561239, now seen corresponding path program 76 times [2022-03-01 17:11:56,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:11:56,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156058886] [2022-03-01 17:11:56,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:11:56,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:11:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:11:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:11:57,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:11:57,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156058886] [2022-03-01 17:11:57,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156058886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:11:57,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:11:57,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:11:57,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573943328] [2022-03-01 17:11:57,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:11:57,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:11:57,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:11:57,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:11:57,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:11:57,098 INFO L87 Difference]: Start difference. First operand 24904 states and 138952 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:11:58,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:11:58,023 INFO L93 Difference]: Finished difference Result 63004 states and 335494 transitions. [2022-03-01 17:11:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:11:58,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:11:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:11:58,814 INFO L225 Difference]: With dead ends: 63004 [2022-03-01 17:11:58,814 INFO L226 Difference]: Without dead ends: 60530 [2022-03-01 17:11:58,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:11:58,820 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 383 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:11:58,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 281 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:11:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60530 states. [2022-03-01 17:12:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60530 to 24620. [2022-03-01 17:12:00,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24620 states, 24619 states have (on average 5.586904423412811) internal successors, (137544), 24619 states have internal predecessors, (137544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:00,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24620 states to 24620 states and 137544 transitions. [2022-03-01 17:12:00,269 INFO L78 Accepts]: Start accepts. Automaton has 24620 states and 137544 transitions. Word has length 33 [2022-03-01 17:12:00,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:00,270 INFO L470 AbstractCegarLoop]: Abstraction has 24620 states and 137544 transitions. [2022-03-01 17:12:00,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 24620 states and 137544 transitions. [2022-03-01 17:12:00,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:00,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:00,335 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] [2022-03-01 17:12:00,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-01 17:12:00,335 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:00,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:00,335 INFO L85 PathProgramCache]: Analyzing trace with hash 658087107, now seen corresponding path program 77 times [2022-03-01 17:12:00,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:00,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663962635] [2022-03-01 17:12:00,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:00,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:00,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:00,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663962635] [2022-03-01 17:12:00,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663962635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:00,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:00,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:00,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344419592] [2022-03-01 17:12:00,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:00,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:00,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:00,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:00,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:00,793 INFO L87 Difference]: Start difference. First operand 24620 states and 137544 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:01,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:01,835 INFO L93 Difference]: Finished difference Result 62629 states and 333727 transitions. [2022-03-01 17:12:01,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:01,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:01,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:02,150 INFO L225 Difference]: With dead ends: 62629 [2022-03-01 17:12:02,150 INFO L226 Difference]: Without dead ends: 60814 [2022-03-01 17:12:02,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:02,150 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 364 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:02,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 338 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:12:02,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60814 states. [2022-03-01 17:12:03,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60814 to 24904. [2022-03-01 17:12:03,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24904 states, 24903 states have (on average 5.575553146207285) internal successors, (138848), 24903 states have internal predecessors, (138848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:03,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24904 states to 24904 states and 138848 transitions. [2022-03-01 17:12:03,586 INFO L78 Accepts]: Start accepts. Automaton has 24904 states and 138848 transitions. Word has length 33 [2022-03-01 17:12:03,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:03,587 INFO L470 AbstractCegarLoop]: Abstraction has 24904 states and 138848 transitions. [2022-03-01 17:12:03,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:03,587 INFO L276 IsEmpty]: Start isEmpty. Operand 24904 states and 138848 transitions. [2022-03-01 17:12:03,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:03,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:03,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:03,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-01 17:12:03,658 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:03,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:03,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1648629727, now seen corresponding path program 78 times [2022-03-01 17:12:03,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:03,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820578522] [2022-03-01 17:12:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:03,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:03,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:03,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:03,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820578522] [2022-03-01 17:12:03,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820578522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:03,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:03,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:03,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300255322] [2022-03-01 17:12:03,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:03,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:03,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:03,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:03,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:03,864 INFO L87 Difference]: Start difference. First operand 24904 states and 138848 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:04,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:04,809 INFO L93 Difference]: Finished difference Result 63004 states and 335390 transitions. [2022-03-01 17:12:04,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:04,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:04,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:05,286 INFO L225 Difference]: With dead ends: 63004 [2022-03-01 17:12:05,286 INFO L226 Difference]: Without dead ends: 60426 [2022-03-01 17:12:05,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:05,286 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 330 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:05,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 290 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:05,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60426 states. [2022-03-01 17:12:06,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60426 to 24516. [2022-03-01 17:12:06,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24516 states, 24515 states have (on average 5.591352233326535) internal successors, (137072), 24515 states have internal predecessors, (137072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:06,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24516 states to 24516 states and 137072 transitions. [2022-03-01 17:12:06,477 INFO L78 Accepts]: Start accepts. Automaton has 24516 states and 137072 transitions. Word has length 33 [2022-03-01 17:12:06,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:06,477 INFO L470 AbstractCegarLoop]: Abstraction has 24516 states and 137072 transitions. [2022-03-01 17:12:06,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 24516 states and 137072 transitions. [2022-03-01 17:12:06,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:06,542 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:06,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:06,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-01 17:12:06,542 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:06,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:06,542 INFO L85 PathProgramCache]: Analyzing trace with hash -104430539, now seen corresponding path program 79 times [2022-03-01 17:12:06,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:06,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363490964] [2022-03-01 17:12:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:06,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:06,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:06,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:06,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363490964] [2022-03-01 17:12:06,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363490964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:06,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:06,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:06,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205077523] [2022-03-01 17:12:06,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:06,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:06,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:06,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:06,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:06,732 INFO L87 Difference]: Start difference. First operand 24516 states and 137072 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:08,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:08,001 INFO L93 Difference]: Finished difference Result 61825 states and 329818 transitions. [2022-03-01 17:12:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:08,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:08,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:08,344 INFO L225 Difference]: With dead ends: 61825 [2022-03-01 17:12:08,344 INFO L226 Difference]: Without dead ends: 60010 [2022-03-01 17:12:08,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:08,345 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 368 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:08,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 339 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:12:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60010 states. [2022-03-01 17:12:09,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60010 to 24732. [2022-03-01 17:12:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24732 states, 24731 states have (on average 5.584731713234402) internal successors, (138116), 24731 states have internal predecessors, (138116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24732 states to 24732 states and 138116 transitions. [2022-03-01 17:12:09,802 INFO L78 Accepts]: Start accepts. Automaton has 24732 states and 138116 transitions. Word has length 33 [2022-03-01 17:12:09,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:09,803 INFO L470 AbstractCegarLoop]: Abstraction has 24732 states and 138116 transitions. [2022-03-01 17:12:09,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand 24732 states and 138116 transitions. [2022-03-01 17:12:09,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:09,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:09,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:09,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-01 17:12:09,871 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:09,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:09,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2134745951, now seen corresponding path program 80 times [2022-03-01 17:12:09,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:09,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392733823] [2022-03-01 17:12:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:09,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:10,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:10,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392733823] [2022-03-01 17:12:10,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392733823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:10,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:10,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:10,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063259628] [2022-03-01 17:12:10,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:10,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:10,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:10,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:10,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:10,060 INFO L87 Difference]: Start difference. First operand 24732 states and 138116 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:11,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:11,009 INFO L93 Difference]: Finished difference Result 61825 states and 329674 transitions. [2022-03-01 17:12:11,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:11,010 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:11,304 INFO L225 Difference]: With dead ends: 61825 [2022-03-01 17:12:11,304 INFO L226 Difference]: Without dead ends: 59866 [2022-03-01 17:12:11,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:11,305 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 389 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:11,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 300 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:11,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59866 states. [2022-03-01 17:12:12,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59866 to 24588. [2022-03-01 17:12:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24588 states, 24587 states have (on average 5.589132468377598) internal successors, (137420), 24587 states have internal predecessors, (137420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:12,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24588 states to 24588 states and 137420 transitions. [2022-03-01 17:12:12,781 INFO L78 Accepts]: Start accepts. Automaton has 24588 states and 137420 transitions. Word has length 33 [2022-03-01 17:12:12,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:12,782 INFO L470 AbstractCegarLoop]: Abstraction has 24588 states and 137420 transitions. [2022-03-01 17:12:12,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 24588 states and 137420 transitions. [2022-03-01 17:12:12,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:12,851 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:12,851 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] [2022-03-01 17:12:12,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-01 17:12:12,851 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:12,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:12,851 INFO L85 PathProgramCache]: Analyzing trace with hash -605413195, now seen corresponding path program 81 times [2022-03-01 17:12:12,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:12,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250313220] [2022-03-01 17:12:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:12,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:13,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:13,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250313220] [2022-03-01 17:12:13,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250313220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:13,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:13,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:13,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138111789] [2022-03-01 17:12:13,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:13,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:13,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:13,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:13,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:13,040 INFO L87 Difference]: Start difference. First operand 24588 states and 137420 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:14,027 INFO L93 Difference]: Finished difference Result 62147 states and 331487 transitions. [2022-03-01 17:12:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:14,028 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:14,632 INFO L225 Difference]: With dead ends: 62147 [2022-03-01 17:12:14,632 INFO L226 Difference]: Without dead ends: 60332 [2022-03-01 17:12:14,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:14,633 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 352 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:14,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 300 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:14,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60332 states. [2022-03-01 17:12:15,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60332 to 24808. [2022-03-01 17:12:15,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24808 states, 24807 states have (on average 5.579231668480671) internal successors, (138404), 24807 states have internal predecessors, (138404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24808 states to 24808 states and 138404 transitions. [2022-03-01 17:12:15,797 INFO L78 Accepts]: Start accepts. Automaton has 24808 states and 138404 transitions. Word has length 33 [2022-03-01 17:12:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:15,797 INFO L470 AbstractCegarLoop]: Abstraction has 24808 states and 138404 transitions. [2022-03-01 17:12:15,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:15,797 INFO L276 IsEmpty]: Start isEmpty. Operand 24808 states and 138404 transitions. [2022-03-01 17:12:16,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:16,144 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:16,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:16,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-01 17:12:16,145 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:16,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:16,145 INFO L85 PathProgramCache]: Analyzing trace with hash -2067031529, now seen corresponding path program 82 times [2022-03-01 17:12:16,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:16,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329925148] [2022-03-01 17:12:16,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:16,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:16,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:16,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329925148] [2022-03-01 17:12:16,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329925148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:16,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:16,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:16,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919531348] [2022-03-01 17:12:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:16,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:16,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:16,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:16,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:16,335 INFO L87 Difference]: Start difference. First operand 24808 states and 138404 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:17,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:17,400 INFO L93 Difference]: Finished difference Result 62393 states and 332572 transitions. [2022-03-01 17:12:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:17,401 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:17,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:17,721 INFO L225 Difference]: With dead ends: 62393 [2022-03-01 17:12:17,722 INFO L226 Difference]: Without dead ends: 60112 [2022-03-01 17:12:17,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:17,722 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 378 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:17,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 286 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:17,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60112 states. [2022-03-01 17:12:18,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60112 to 24588. [2022-03-01 17:12:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24588 states, 24587 states have (on average 5.586204091593118) internal successors, (137348), 24587 states have internal predecessors, (137348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:19,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24588 states to 24588 states and 137348 transitions. [2022-03-01 17:12:19,130 INFO L78 Accepts]: Start accepts. Automaton has 24588 states and 137348 transitions. Word has length 33 [2022-03-01 17:12:19,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:19,130 INFO L470 AbstractCegarLoop]: Abstraction has 24588 states and 137348 transitions. [2022-03-01 17:12:19,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 24588 states and 137348 transitions. [2022-03-01 17:12:19,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:19,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:19,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:19,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-01 17:12:19,195 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:19,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:19,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1692892355, now seen corresponding path program 83 times [2022-03-01 17:12:19,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:19,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972439797] [2022-03-01 17:12:19,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:19,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:19,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:19,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972439797] [2022-03-01 17:12:19,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972439797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:19,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:19,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:19,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803173523] [2022-03-01 17:12:19,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:19,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:19,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:19,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:19,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:19,384 INFO L87 Difference]: Start difference. First operand 24588 states and 137348 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:20,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:20,317 INFO L93 Difference]: Finished difference Result 62147 states and 331415 transitions. [2022-03-01 17:12:20,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:20,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:20,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:20,807 INFO L225 Difference]: With dead ends: 62147 [2022-03-01 17:12:20,808 INFO L226 Difference]: Without dead ends: 60332 [2022-03-01 17:12:20,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:20,808 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 335 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:20,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 286 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60332 states. [2022-03-01 17:12:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60332 to 24808. [2022-03-01 17:12:21,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24808 states, 24807 states have (on average 5.576329261901883) internal successors, (138332), 24807 states have internal predecessors, (138332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24808 states to 24808 states and 138332 transitions. [2022-03-01 17:12:21,980 INFO L78 Accepts]: Start accepts. Automaton has 24808 states and 138332 transitions. Word has length 33 [2022-03-01 17:12:21,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:21,980 INFO L470 AbstractCegarLoop]: Abstraction has 24808 states and 138332 transitions. [2022-03-01 17:12:21,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:21,980 INFO L276 IsEmpty]: Start isEmpty. Operand 24808 states and 138332 transitions. [2022-03-01 17:12:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:22,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:22,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:22,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-01 17:12:22,049 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:22,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:22,049 INFO L85 PathProgramCache]: Analyzing trace with hash 37367969, now seen corresponding path program 84 times [2022-03-01 17:12:22,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:22,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981046914] [2022-03-01 17:12:22,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:22,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:22,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:22,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981046914] [2022-03-01 17:12:22,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981046914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:22,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:22,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:22,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312199311] [2022-03-01 17:12:22,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:22,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:22,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:22,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:22,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:22,476 INFO L87 Difference]: Start difference. First operand 24808 states and 138332 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:23,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:23,518 INFO L93 Difference]: Finished difference Result 62393 states and 332500 transitions. [2022-03-01 17:12:23,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:23,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:23,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:24,109 INFO L225 Difference]: With dead ends: 62393 [2022-03-01 17:12:24,109 INFO L226 Difference]: Without dead ends: 60040 [2022-03-01 17:12:24,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:24,109 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 356 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:24,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 293 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:12:24,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60040 states. [2022-03-01 17:12:25,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60040 to 24516. [2022-03-01 17:12:25,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24516 states, 24515 states have (on average 5.589883744646135) internal successors, (137036), 24515 states have internal predecessors, (137036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24516 states to 24516 states and 137036 transitions. [2022-03-01 17:12:25,668 INFO L78 Accepts]: Start accepts. Automaton has 24516 states and 137036 transitions. Word has length 33 [2022-03-01 17:12:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:25,669 INFO L470 AbstractCegarLoop]: Abstraction has 24516 states and 137036 transitions. [2022-03-01 17:12:25,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:25,669 INFO L276 IsEmpty]: Start isEmpty. Operand 24516 states and 137036 transitions. [2022-03-01 17:12:25,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:25,996 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:25,996 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] [2022-03-01 17:12:25,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-01 17:12:25,996 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:25,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash -596476653, now seen corresponding path program 85 times [2022-03-01 17:12:25,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:25,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917519298] [2022-03-01 17:12:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:25,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:26,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:26,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917519298] [2022-03-01 17:12:26,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917519298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:26,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:26,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:26,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046417953] [2022-03-01 17:12:26,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:26,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:26,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:26,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:26,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:26,207 INFO L87 Difference]: Start difference. First operand 24516 states and 137036 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:27,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:27,263 INFO L93 Difference]: Finished difference Result 63208 states and 336907 transitions. [2022-03-01 17:12:27,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:27,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:27,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:27,592 INFO L225 Difference]: With dead ends: 63208 [2022-03-01 17:12:27,592 INFO L226 Difference]: Without dead ends: 61393 [2022-03-01 17:12:27,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:27,593 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 346 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:27,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 318 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61393 states. [2022-03-01 17:12:28,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61393 to 24974. [2022-03-01 17:12:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24974 states, 24973 states have (on average 5.578705001401514) internal successors, (139317), 24973 states have internal predecessors, (139317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24974 states to 24974 states and 139317 transitions. [2022-03-01 17:12:29,043 INFO L78 Accepts]: Start accepts. Automaton has 24974 states and 139317 transitions. Word has length 33 [2022-03-01 17:12:29,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:29,043 INFO L470 AbstractCegarLoop]: Abstraction has 24974 states and 139317 transitions. [2022-03-01 17:12:29,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:29,044 INFO L276 IsEmpty]: Start isEmpty. Operand 24974 states and 139317 transitions. [2022-03-01 17:12:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:29,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:29,114 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] [2022-03-01 17:12:29,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-01 17:12:29,114 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash -763793675, now seen corresponding path program 86 times [2022-03-01 17:12:29,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:29,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267187779] [2022-03-01 17:12:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:29,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:29,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:29,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267187779] [2022-03-01 17:12:29,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267187779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:29,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:29,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:29,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161461102] [2022-03-01 17:12:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:29,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:29,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:29,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:29,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:29,313 INFO L87 Difference]: Start difference. First operand 24974 states and 139317 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:30,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:30,225 INFO L93 Difference]: Finished difference Result 63583 states and 338570 transitions. [2022-03-01 17:12:30,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:30,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:30,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:30,728 INFO L225 Difference]: With dead ends: 63583 [2022-03-01 17:12:30,728 INFO L226 Difference]: Without dead ends: 61109 [2022-03-01 17:12:30,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:30,729 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 369 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:30,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 268 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:30,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61109 states. [2022-03-01 17:12:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61109 to 24690. [2022-03-01 17:12:31,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24690 states, 24689 states have (on average 5.584308801490542) internal successors, (137871), 24689 states have internal predecessors, (137871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24690 states to 24690 states and 137871 transitions. [2022-03-01 17:12:31,949 INFO L78 Accepts]: Start accepts. Automaton has 24690 states and 137871 transitions. Word has length 33 [2022-03-01 17:12:31,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:31,949 INFO L470 AbstractCegarLoop]: Abstraction has 24690 states and 137871 transitions. [2022-03-01 17:12:31,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:31,949 INFO L276 IsEmpty]: Start isEmpty. Operand 24690 states and 137871 transitions. [2022-03-01 17:12:32,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:32,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:32,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:32,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-01 17:12:32,232 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:32,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:32,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1077378699, now seen corresponding path program 87 times [2022-03-01 17:12:32,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:32,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522758641] [2022-03-01 17:12:32,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:32,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:32,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:32,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522758641] [2022-03-01 17:12:32,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522758641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:32,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:32,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:32,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020474988] [2022-03-01 17:12:32,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:32,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:32,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:32,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:32,476 INFO L87 Difference]: Start difference. First operand 24690 states and 137871 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:33,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:33,594 INFO L93 Difference]: Finished difference Result 63015 states and 335867 transitions. [2022-03-01 17:12:33,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:33,594 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:33,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:33,919 INFO L225 Difference]: With dead ends: 63015 [2022-03-01 17:12:33,919 INFO L226 Difference]: Without dead ends: 61200 [2022-03-01 17:12:33,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:33,919 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 394 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:33,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 316 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:34,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61200 states. [2022-03-01 17:12:35,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61200 to 24910. [2022-03-01 17:12:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24910 states, 24909 states have (on average 5.574491147777912) internal successors, (138855), 24909 states have internal predecessors, (138855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:35,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24910 states to 24910 states and 138855 transitions. [2022-03-01 17:12:35,402 INFO L78 Accepts]: Start accepts. Automaton has 24910 states and 138855 transitions. Word has length 33 [2022-03-01 17:12:35,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:35,402 INFO L470 AbstractCegarLoop]: Abstraction has 24910 states and 138855 transitions. [2022-03-01 17:12:35,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:35,403 INFO L276 IsEmpty]: Start isEmpty. Operand 24910 states and 138855 transitions. [2022-03-01 17:12:35,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:35,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:35,476 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] [2022-03-01 17:12:35,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-01 17:12:35,476 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:35,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:35,476 INFO L85 PathProgramCache]: Analyzing trace with hash 274531957, now seen corresponding path program 88 times [2022-03-01 17:12:35,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:35,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758302655] [2022-03-01 17:12:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:35,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:35,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:35,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758302655] [2022-03-01 17:12:35,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758302655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:35,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:35,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:35,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074241534] [2022-03-01 17:12:35,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:35,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:35,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:35,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:35,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:35,668 INFO L87 Difference]: Start difference. First operand 24910 states and 138855 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:36,690 INFO L93 Difference]: Finished difference Result 63261 states and 336952 transitions. [2022-03-01 17:12:36,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:36,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:37,207 INFO L225 Difference]: With dead ends: 63261 [2022-03-01 17:12:37,207 INFO L226 Difference]: Without dead ends: 60980 [2022-03-01 17:12:37,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:37,208 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 347 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:37,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 356 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:12:37,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60980 states. [2022-03-01 17:12:38,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60980 to 24690. [2022-03-01 17:12:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24690 states, 24689 states have (on average 5.579853375997407) internal successors, (137761), 24689 states have internal predecessors, (137761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24690 states to 24690 states and 137761 transitions. [2022-03-01 17:12:38,362 INFO L78 Accepts]: Start accepts. Automaton has 24690 states and 137761 transitions. Word has length 33 [2022-03-01 17:12:38,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:38,362 INFO L470 AbstractCegarLoop]: Abstraction has 24690 states and 137761 transitions. [2022-03-01 17:12:38,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:38,362 INFO L276 IsEmpty]: Start isEmpty. Operand 24690 states and 137761 transitions. [2022-03-01 17:12:38,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:38,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:38,436 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] [2022-03-01 17:12:38,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-01 17:12:38,436 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash -924706857, now seen corresponding path program 89 times [2022-03-01 17:12:38,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:38,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389026002] [2022-03-01 17:12:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:38,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:38,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:38,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:38,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389026002] [2022-03-01 17:12:38,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389026002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:38,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:38,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:38,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728150625] [2022-03-01 17:12:38,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:38,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:38,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:38,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:38,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:38,870 INFO L87 Difference]: Start difference. First operand 24690 states and 137761 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:39,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:39,838 INFO L93 Difference]: Finished difference Result 64016 states and 340813 transitions. [2022-03-01 17:12:39,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:39,838 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:39,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:40,144 INFO L225 Difference]: With dead ends: 64016 [2022-03-01 17:12:40,144 INFO L226 Difference]: Without dead ends: 61826 [2022-03-01 17:12:40,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:40,144 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 347 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:40,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 281 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:40,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61826 states. [2022-03-01 17:12:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61826 to 25161. [2022-03-01 17:12:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25161 states, 25160 states have (on average 5.558346581875994) internal successors, (139848), 25160 states have internal predecessors, (139848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:41,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25161 states to 25161 states and 139848 transitions. [2022-03-01 17:12:41,562 INFO L78 Accepts]: Start accepts. Automaton has 25161 states and 139848 transitions. Word has length 33 [2022-03-01 17:12:41,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:41,562 INFO L470 AbstractCegarLoop]: Abstraction has 25161 states and 139848 transitions. [2022-03-01 17:12:41,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:41,562 INFO L276 IsEmpty]: Start isEmpty. Operand 25161 states and 139848 transitions. [2022-03-01 17:12:41,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:41,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:41,631 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] [2022-03-01 17:12:41,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-01 17:12:41,631 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:41,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:41,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1253089739, now seen corresponding path program 90 times [2022-03-01 17:12:41,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:41,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255746106] [2022-03-01 17:12:41,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:41,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:41,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:41,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:41,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255746106] [2022-03-01 17:12:41,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255746106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:41,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:41,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:41,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359922036] [2022-03-01 17:12:41,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:41,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:41,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:41,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:41,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:41,821 INFO L87 Difference]: Start difference. First operand 25161 states and 139848 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:42,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:42,820 INFO L93 Difference]: Finished difference Result 63887 states and 339828 transitions. [2022-03-01 17:12:42,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:42,821 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:42,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:43,338 INFO L225 Difference]: With dead ends: 63887 [2022-03-01 17:12:43,339 INFO L226 Difference]: Without dead ends: 61181 [2022-03-01 17:12:43,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:43,339 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 375 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:43,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 292 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:43,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61181 states. [2022-03-01 17:12:44,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61181 to 24516. [2022-03-01 17:12:44,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24516 states, 24515 states have (on average 5.587109932694269) internal successors, (136968), 24515 states have internal predecessors, (136968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24516 states to 24516 states and 136968 transitions. [2022-03-01 17:12:44,547 INFO L78 Accepts]: Start accepts. Automaton has 24516 states and 136968 transitions. Word has length 33 [2022-03-01 17:12:44,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:44,547 INFO L470 AbstractCegarLoop]: Abstraction has 24516 states and 136968 transitions. [2022-03-01 17:12:44,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:44,547 INFO L276 IsEmpty]: Start isEmpty. Operand 24516 states and 136968 transitions. [2022-03-01 17:12:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:44,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:44,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:44,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-01 17:12:44,608 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:44,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:44,608 INFO L85 PathProgramCache]: Analyzing trace with hash 971134147, now seen corresponding path program 91 times [2022-03-01 17:12:44,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:44,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708454238] [2022-03-01 17:12:44,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:45,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:45,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708454238] [2022-03-01 17:12:45,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708454238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:45,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:45,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:45,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305789884] [2022-03-01 17:12:45,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:45,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:45,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:45,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:45,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:45,018 INFO L87 Difference]: Start difference. First operand 24516 states and 136968 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:46,045 INFO L93 Difference]: Finished difference Result 63208 states and 336839 transitions. [2022-03-01 17:12:46,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:46,045 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:46,375 INFO L225 Difference]: With dead ends: 63208 [2022-03-01 17:12:46,375 INFO L226 Difference]: Without dead ends: 61393 [2022-03-01 17:12:46,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:46,376 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 369 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:46,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 313 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:12:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61393 states. [2022-03-01 17:12:47,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61393 to 24974. [2022-03-01 17:12:47,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24974 states, 24973 states have (on average 5.575982060625475) internal successors, (139249), 24973 states have internal predecessors, (139249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:47,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24974 states to 24974 states and 139249 transitions. [2022-03-01 17:12:47,851 INFO L78 Accepts]: Start accepts. Automaton has 24974 states and 139249 transitions. Word has length 33 [2022-03-01 17:12:47,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:47,851 INFO L470 AbstractCegarLoop]: Abstraction has 24974 states and 139249 transitions. [2022-03-01 17:12:47,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:47,851 INFO L276 IsEmpty]: Start isEmpty. Operand 24974 states and 139249 transitions. [2022-03-01 17:12:47,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:47,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:47,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:47,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-01 17:12:47,921 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:47,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:47,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1335582687, now seen corresponding path program 92 times [2022-03-01 17:12:47,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:47,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835452510] [2022-03-01 17:12:47,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:47,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:48,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:48,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:48,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835452510] [2022-03-01 17:12:48,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835452510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:48,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:48,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:48,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83540173] [2022-03-01 17:12:48,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:48,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:48,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:48,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:48,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:48,121 INFO L87 Difference]: Start difference. First operand 24974 states and 139249 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:49,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:49,259 INFO L93 Difference]: Finished difference Result 63583 states and 338502 transitions. [2022-03-01 17:12:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:49,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:49,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:49,687 INFO L225 Difference]: With dead ends: 63583 [2022-03-01 17:12:49,687 INFO L226 Difference]: Without dead ends: 61109 [2022-03-01 17:12:49,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:49,687 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 328 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:49,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 316 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:49,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61109 states. [2022-03-01 17:12:51,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61109 to 24690. [2022-03-01 17:12:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24690 states, 24689 states have (on average 5.581554538458422) internal successors, (137803), 24689 states have internal predecessors, (137803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24690 states to 24690 states and 137803 transitions. [2022-03-01 17:12:51,237 INFO L78 Accepts]: Start accepts. Automaton has 24690 states and 137803 transitions. Word has length 33 [2022-03-01 17:12:51,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:51,237 INFO L470 AbstractCegarLoop]: Abstraction has 24690 states and 137803 transitions. [2022-03-01 17:12:51,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 24690 states and 137803 transitions. [2022-03-01 17:12:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:51,310 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:51,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:51,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-01 17:12:51,311 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash 124337185, now seen corresponding path program 93 times [2022-03-01 17:12:51,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:51,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123938262] [2022-03-01 17:12:51,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:51,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:51,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:51,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:51,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123938262] [2022-03-01 17:12:51,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123938262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:51,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:51,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:51,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758616438] [2022-03-01 17:12:51,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:51,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:51,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:51,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:51,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:51,503 INFO L87 Difference]: Start difference. First operand 24690 states and 137803 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:52,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:52,508 INFO L93 Difference]: Finished difference Result 63015 states and 335799 transitions. [2022-03-01 17:12:52,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:52,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:52,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:53,036 INFO L225 Difference]: With dead ends: 63015 [2022-03-01 17:12:53,037 INFO L226 Difference]: Without dead ends: 61200 [2022-03-01 17:12:53,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:53,037 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 340 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:53,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 315 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:53,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61200 states. [2022-03-01 17:12:54,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61200 to 24910. [2022-03-01 17:12:54,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24910 states, 24909 states have (on average 5.571761210807339) internal successors, (138787), 24909 states have internal predecessors, (138787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:54,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24910 states to 24910 states and 138787 transitions. [2022-03-01 17:12:54,325 INFO L78 Accepts]: Start accepts. Automaton has 24910 states and 138787 transitions. Word has length 33 [2022-03-01 17:12:54,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:54,326 INFO L470 AbstractCegarLoop]: Abstraction has 24910 states and 138787 transitions. [2022-03-01 17:12:54,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:54,326 INFO L276 IsEmpty]: Start isEmpty. Operand 24910 states and 138787 transitions. [2022-03-01 17:12:54,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:54,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:54,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:54,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-01 17:12:54,671 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:54,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:54,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1053423777, now seen corresponding path program 94 times [2022-03-01 17:12:54,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:54,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402872643] [2022-03-01 17:12:54,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:54,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:54,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:54,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:54,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402872643] [2022-03-01 17:12:54,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402872643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:54,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:54,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:54,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115848187] [2022-03-01 17:12:54,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:54,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:54,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:54,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:54,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:54,884 INFO L87 Difference]: Start difference. First operand 24910 states and 138787 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:55,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:55,978 INFO L93 Difference]: Finished difference Result 63261 states and 336884 transitions. [2022-03-01 17:12:55,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:55,978 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:55,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:56,311 INFO L225 Difference]: With dead ends: 63261 [2022-03-01 17:12:56,311 INFO L226 Difference]: Without dead ends: 60980 [2022-03-01 17:12:56,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:56,311 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 370 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:56,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 276 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:56,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60980 states. [2022-03-01 17:12:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60980 to 24690. [2022-03-01 17:12:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24690 states, 24689 states have (on average 5.577099112965288) internal successors, (137693), 24689 states have internal predecessors, (137693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24690 states to 24690 states and 137693 transitions. [2022-03-01 17:12:57,827 INFO L78 Accepts]: Start accepts. Automaton has 24690 states and 137693 transitions. Word has length 33 [2022-03-01 17:12:57,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:12:57,827 INFO L470 AbstractCegarLoop]: Abstraction has 24690 states and 137693 transitions. [2022-03-01 17:12:57,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:57,827 INFO L276 IsEmpty]: Start isEmpty. Operand 24690 states and 137693 transitions. [2022-03-01 17:12:57,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:12:57,894 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:12:57,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:12:57,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-01 17:12:57,895 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:12:57,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:12:57,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1138349183, now seen corresponding path program 95 times [2022-03-01 17:12:57,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:12:57,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060855739] [2022-03-01 17:12:57,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:12:57,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:12:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:12:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:12:58,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:12:58,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060855739] [2022-03-01 17:12:58,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060855739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:12:58,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:12:58,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:12:58,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900157186] [2022-03-01 17:12:58,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:12:58,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:12:58,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:12:58,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:12:58,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:12:58,104 INFO L87 Difference]: Start difference. First operand 24690 states and 137693 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:12:58,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:12:58,995 INFO L93 Difference]: Finished difference Result 64016 states and 340745 transitions. [2022-03-01 17:12:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:12:58,995 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:12:58,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:12:59,517 INFO L225 Difference]: With dead ends: 64016 [2022-03-01 17:12:59,517 INFO L226 Difference]: Without dead ends: 61826 [2022-03-01 17:12:59,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:12:59,518 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 379 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:12:59,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 270 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:12:59,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61826 states. [2022-03-01 17:13:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61826 to 25161. [2022-03-01 17:13:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25161 states, 25160 states have (on average 5.5556438791732905) internal successors, (139780), 25160 states have internal predecessors, (139780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:00,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25161 states to 25161 states and 139780 transitions. [2022-03-01 17:13:00,776 INFO L78 Accepts]: Start accepts. Automaton has 25161 states and 139780 transitions. Word has length 33 [2022-03-01 17:13:00,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:00,776 INFO L470 AbstractCegarLoop]: Abstraction has 25161 states and 139780 transitions. [2022-03-01 17:13:00,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:00,776 INFO L276 IsEmpty]: Start isEmpty. Operand 25161 states and 139780 transitions. [2022-03-01 17:13:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:01,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:01,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:01,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-01 17:13:01,087 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:01,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:01,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2075555487, now seen corresponding path program 96 times [2022-03-01 17:13:01,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:01,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491332710] [2022-03-01 17:13:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:01,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:01,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:01,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491332710] [2022-03-01 17:13:01,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491332710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:01,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:01,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:01,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945555456] [2022-03-01 17:13:01,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:01,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:01,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:01,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:01,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:01,324 INFO L87 Difference]: Start difference. First operand 25161 states and 139780 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:02,411 INFO L93 Difference]: Finished difference Result 63887 states and 339760 transitions. [2022-03-01 17:13:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:02,411 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:02,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:02,728 INFO L225 Difference]: With dead ends: 63887 [2022-03-01 17:13:02,728 INFO L226 Difference]: Without dead ends: 61113 [2022-03-01 17:13:02,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:02,729 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 368 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:02,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 275 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:02,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61113 states. [2022-03-01 17:13:03,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61113 to 24448. [2022-03-01 17:13:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 5.591115474291324) internal successors, (136686), 24447 states have internal predecessors, (136686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:04,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 136686 transitions. [2022-03-01 17:13:04,115 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 136686 transitions. Word has length 33 [2022-03-01 17:13:04,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:04,115 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 136686 transitions. [2022-03-01 17:13:04,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:04,115 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 136686 transitions. [2022-03-01 17:13:04,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:04,174 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:04,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:04,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-01 17:13:04,174 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:04,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash 681619205, now seen corresponding path program 97 times [2022-03-01 17:13:04,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:04,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123456640] [2022-03-01 17:13:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:04,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:04,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:04,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123456640] [2022-03-01 17:13:04,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123456640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:04,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:04,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:04,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952404174] [2022-03-01 17:13:04,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:04,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:04,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:04,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:04,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:04,371 INFO L87 Difference]: Start difference. First operand 24448 states and 136686 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:05,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:05,391 INFO L93 Difference]: Finished difference Result 63652 states and 340175 transitions. [2022-03-01 17:13:05,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:05,391 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:05,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:05,916 INFO L225 Difference]: With dead ends: 63652 [2022-03-01 17:13:05,916 INFO L226 Difference]: Without dead ends: 61629 [2022-03-01 17:13:05,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:05,917 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 352 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:05,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 321 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:13:06,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61629 states. [2022-03-01 17:13:07,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61629 to 24890. [2022-03-01 17:13:07,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24890 states, 24889 states have (on average 5.585158101972759) internal successors, (139009), 24889 states have internal predecessors, (139009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24890 states to 24890 states and 139009 transitions. [2022-03-01 17:13:07,172 INFO L78 Accepts]: Start accepts. Automaton has 24890 states and 139009 transitions. Word has length 33 [2022-03-01 17:13:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:07,172 INFO L470 AbstractCegarLoop]: Abstraction has 24890 states and 139009 transitions. [2022-03-01 17:13:07,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 24890 states and 139009 transitions. [2022-03-01 17:13:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:07,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:07,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:07,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-01 17:13:07,239 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:07,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:07,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1361717789, now seen corresponding path program 98 times [2022-03-01 17:13:07,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:07,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706329739] [2022-03-01 17:13:07,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:07,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:07,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:07,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:07,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706329739] [2022-03-01 17:13:07,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706329739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:07,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:07,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:07,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080243823] [2022-03-01 17:13:07,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:07,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:07,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:07,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:07,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:07,686 INFO L87 Difference]: Start difference. First operand 24890 states and 139009 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:08,673 INFO L93 Difference]: Finished difference Result 63444 states and 338799 transitions. [2022-03-01 17:13:08,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:08,673 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:08,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:08,983 INFO L225 Difference]: With dead ends: 63444 [2022-03-01 17:13:08,983 INFO L226 Difference]: Without dead ends: 61413 [2022-03-01 17:13:08,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:08,983 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 359 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:08,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 273 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:09,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61413 states. [2022-03-01 17:13:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61413 to 24674. [2022-03-01 17:13:10,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24674 states, 24673 states have (on average 5.590280873829692) internal successors, (137929), 24673 states have internal predecessors, (137929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:10,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24674 states to 24674 states and 137929 transitions. [2022-03-01 17:13:10,399 INFO L78 Accepts]: Start accepts. Automaton has 24674 states and 137929 transitions. Word has length 33 [2022-03-01 17:13:10,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:10,399 INFO L470 AbstractCegarLoop]: Abstraction has 24674 states and 137929 transitions. [2022-03-01 17:13:10,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand 24674 states and 137929 transitions. [2022-03-01 17:13:10,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:10,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:10,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:10,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-01 17:13:10,465 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:10,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:10,465 INFO L85 PathProgramCache]: Analyzing trace with hash 129866467, now seen corresponding path program 99 times [2022-03-01 17:13:10,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:10,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003875251] [2022-03-01 17:13:10,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:10,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:10,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:10,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003875251] [2022-03-01 17:13:10,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003875251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:10,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:10,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:10,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67128747] [2022-03-01 17:13:10,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:10,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:10,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:10,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:10,664 INFO L87 Difference]: Start difference. First operand 24674 states and 137929 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:11,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:11,619 INFO L93 Difference]: Finished difference Result 64199 states and 342918 transitions. [2022-03-01 17:13:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:11,619 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:11,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:12,108 INFO L225 Difference]: With dead ends: 64199 [2022-03-01 17:13:12,108 INFO L226 Difference]: Without dead ends: 62176 [2022-03-01 17:13:12,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:12,109 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 344 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:12,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 311 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62176 states. [2022-03-01 17:13:13,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62176 to 25062. [2022-03-01 17:13:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25062 states, 25061 states have (on average 5.576832528630143) internal successors, (139761), 25061 states have internal predecessors, (139761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:13,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25062 states to 25062 states and 139761 transitions. [2022-03-01 17:13:13,348 INFO L78 Accepts]: Start accepts. Automaton has 25062 states and 139761 transitions. Word has length 33 [2022-03-01 17:13:13,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:13,348 INFO L470 AbstractCegarLoop]: Abstraction has 25062 states and 139761 transitions. [2022-03-01 17:13:13,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:13,348 INFO L276 IsEmpty]: Start isEmpty. Operand 25062 states and 139761 transitions. [2022-03-01 17:13:13,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:13,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:13,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:13,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-01 17:13:13,652 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:13,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1484112611, now seen corresponding path program 100 times [2022-03-01 17:13:13,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:13,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088521091] [2022-03-01 17:13:13,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:13,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:13,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:13,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:13,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088521091] [2022-03-01 17:13:13,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088521091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:13,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:13,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:13,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659866889] [2022-03-01 17:13:13,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:13,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:13,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:13,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:13,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:13,891 INFO L87 Difference]: Start difference. First operand 25062 states and 139761 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:14,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:14,955 INFO L93 Difference]: Finished difference Result 64366 states and 343317 transitions. [2022-03-01 17:13:14,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:14,956 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:14,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:15,600 INFO L225 Difference]: With dead ends: 64366 [2022-03-01 17:13:15,601 INFO L226 Difference]: Without dead ends: 61788 [2022-03-01 17:13:15,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:15,601 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 358 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:15,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 287 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:15,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61788 states. [2022-03-01 17:13:17,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61788 to 24674. [2022-03-01 17:13:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24674 states, 24673 states have (on average 5.584606655048028) internal successors, (137789), 24673 states have internal predecessors, (137789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:17,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24674 states to 24674 states and 137789 transitions. [2022-03-01 17:13:17,439 INFO L78 Accepts]: Start accepts. Automaton has 24674 states and 137789 transitions. Word has length 33 [2022-03-01 17:13:17,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:17,439 INFO L470 AbstractCegarLoop]: Abstraction has 24674 states and 137789 transitions. [2022-03-01 17:13:17,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 24674 states and 137789 transitions. [2022-03-01 17:13:17,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:17,520 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:17,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:17,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-01 17:13:17,520 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:17,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:17,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1112214081, now seen corresponding path program 101 times [2022-03-01 17:13:17,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:17,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460298673] [2022-03-01 17:13:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:17,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:17,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:17,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460298673] [2022-03-01 17:13:17,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460298673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:17,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:17,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:17,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473804917] [2022-03-01 17:13:17,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:17,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:17,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:17,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:17,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:17,719 INFO L87 Difference]: Start difference. First operand 24674 states and 137789 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:18,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:18,753 INFO L93 Difference]: Finished difference Result 63679 states and 339826 transitions. [2022-03-01 17:13:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:18,753 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:18,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:19,071 INFO L225 Difference]: With dead ends: 63679 [2022-03-01 17:13:19,071 INFO L226 Difference]: Without dead ends: 61864 [2022-03-01 17:13:19,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:19,071 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 385 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:19,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [385 Valid, 294 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:19,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61864 states. [2022-03-01 17:13:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61864 to 24958. [2022-03-01 17:13:20,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24958 states, 24957 states have (on average 5.573306086468726) internal successors, (139093), 24957 states have internal predecessors, (139093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24958 states to 24958 states and 139093 transitions. [2022-03-01 17:13:20,559 INFO L78 Accepts]: Start accepts. Automaton has 24958 states and 139093 transitions. Word has length 33 [2022-03-01 17:13:20,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:20,559 INFO L470 AbstractCegarLoop]: Abstraction has 24958 states and 139093 transitions. [2022-03-01 17:13:20,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:20,559 INFO L276 IsEmpty]: Start isEmpty. Operand 24958 states and 139093 transitions. [2022-03-01 17:13:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:20,625 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:20,625 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] [2022-03-01 17:13:20,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-01 17:13:20,626 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:20,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:20,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1676531037, now seen corresponding path program 102 times [2022-03-01 17:13:20,626 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:20,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423773041] [2022-03-01 17:13:20,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:20,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:20,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:20,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423773041] [2022-03-01 17:13:20,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423773041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:20,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:20,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:20,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071518938] [2022-03-01 17:13:20,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:20,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:20,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:20,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:20,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:20,824 INFO L87 Difference]: Start difference. First operand 24958 states and 139093 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:21,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:21,759 INFO L93 Difference]: Finished difference Result 64054 states and 341489 transitions. [2022-03-01 17:13:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:21,759 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:21,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:22,281 INFO L225 Difference]: With dead ends: 64054 [2022-03-01 17:13:22,282 INFO L226 Difference]: Without dead ends: 61440 [2022-03-01 17:13:22,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:22,282 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 360 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:22,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 290 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:22,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61440 states. [2022-03-01 17:13:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61440 to 24534. [2022-03-01 17:13:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.590143887824563) internal successors, (137143), 24533 states have internal predecessors, (137143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:23,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137143 transitions. [2022-03-01 17:13:23,443 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137143 transitions. Word has length 33 [2022-03-01 17:13:23,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:23,443 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137143 transitions. [2022-03-01 17:13:23,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137143 transitions. [2022-03-01 17:13:23,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:23,789 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:23,789 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] [2022-03-01 17:13:23,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-01 17:13:23,790 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:23,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:23,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1341442333, now seen corresponding path program 103 times [2022-03-01 17:13:23,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:23,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349715829] [2022-03-01 17:13:23,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:23,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:23,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:23,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:23,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349715829] [2022-03-01 17:13:23,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349715829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:23,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:23,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:23,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276613516] [2022-03-01 17:13:23,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:23,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:23,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:23,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:23,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:23,991 INFO L87 Difference]: Start difference. First operand 24534 states and 137143 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:25,070 INFO L93 Difference]: Finished difference Result 63363 states and 338711 transitions. [2022-03-01 17:13:25,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:25,071 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:25,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:25,395 INFO L225 Difference]: With dead ends: 63363 [2022-03-01 17:13:25,395 INFO L226 Difference]: Without dead ends: 61340 [2022-03-01 17:13:25,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:25,395 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 368 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:25,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 279 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:25,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61340 states. [2022-03-01 17:13:26,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61340 to 24858. [2022-03-01 17:13:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24857 states have (on average 5.582451623285191) internal successors, (138763), 24857 states have internal predecessors, (138763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 138763 transitions. [2022-03-01 17:13:26,856 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 138763 transitions. Word has length 33 [2022-03-01 17:13:26,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:26,856 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 138763 transitions. [2022-03-01 17:13:26,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:26,856 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 138763 transitions. [2022-03-01 17:13:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:26,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:26,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:26,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-01 17:13:26,928 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:26,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:26,928 INFO L85 PathProgramCache]: Analyzing trace with hash 910187969, now seen corresponding path program 104 times [2022-03-01 17:13:26,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:26,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717672864] [2022-03-01 17:13:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:26,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:27,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:27,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717672864] [2022-03-01 17:13:27,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717672864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:27,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:27,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:27,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180636127] [2022-03-01 17:13:27,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:27,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:27,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:27,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:27,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:27,123 INFO L87 Difference]: Start difference. First operand 24858 states and 138763 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:28,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:28,087 INFO L93 Difference]: Finished difference Result 63155 states and 337335 transitions. [2022-03-01 17:13:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:28,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:28,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:28,616 INFO L225 Difference]: With dead ends: 63155 [2022-03-01 17:13:28,616 INFO L226 Difference]: Without dead ends: 61124 [2022-03-01 17:13:28,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:28,617 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 365 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:28,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 290 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:28,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61124 states. [2022-03-01 17:13:29,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61124 to 24642. [2022-03-01 17:13:29,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24642 states, 24641 states have (on average 5.587557323160586) internal successors, (137683), 24641 states have internal predecessors, (137683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24642 states to 24642 states and 137683 transitions. [2022-03-01 17:13:29,844 INFO L78 Accepts]: Start accepts. Automaton has 24642 states and 137683 transitions. Word has length 33 [2022-03-01 17:13:29,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:29,845 INFO L470 AbstractCegarLoop]: Abstraction has 24642 states and 137683 transitions. [2022-03-01 17:13:29,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 24642 states and 137683 transitions. [2022-03-01 17:13:30,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:30,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:30,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:30,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-01 17:13:30,158 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:30,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:30,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1842424989, now seen corresponding path program 105 times [2022-03-01 17:13:30,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:30,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261446912] [2022-03-01 17:13:30,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:30,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:30,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:30,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:30,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261446912] [2022-03-01 17:13:30,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261446912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:30,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:30,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:30,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526314133] [2022-03-01 17:13:30,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:30,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:30,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:30,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:30,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:30,394 INFO L87 Difference]: Start difference. First operand 24642 states and 137683 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:31,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:31,429 INFO L93 Difference]: Finished difference Result 63717 states and 340556 transitions. [2022-03-01 17:13:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:31,430 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:31,749 INFO L225 Difference]: With dead ends: 63717 [2022-03-01 17:13:31,749 INFO L226 Difference]: Without dead ends: 61694 [2022-03-01 17:13:31,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:31,749 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 360 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:31,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 289 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:31,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61694 states. [2022-03-01 17:13:33,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61694 to 24966. [2022-03-01 17:13:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24966 states, 24965 states have (on average 5.575605848187463) internal successors, (139195), 24965 states have internal predecessors, (139195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:33,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24966 states to 24966 states and 139195 transitions. [2022-03-01 17:13:33,211 INFO L78 Accepts]: Start accepts. Automaton has 24966 states and 139195 transitions. Word has length 33 [2022-03-01 17:13:33,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:33,211 INFO L470 AbstractCegarLoop]: Abstraction has 24966 states and 139195 transitions. [2022-03-01 17:13:33,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:33,212 INFO L276 IsEmpty]: Start isEmpty. Operand 24966 states and 139195 transitions. [2022-03-01 17:13:33,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:33,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:33,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:33,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-01 17:13:33,279 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:33,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:33,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1124856989, now seen corresponding path program 106 times [2022-03-01 17:13:33,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:33,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753499802] [2022-03-01 17:13:33,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:33,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:33,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:33,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753499802] [2022-03-01 17:13:33,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753499802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:33,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:33,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:33,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200835487] [2022-03-01 17:13:33,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:33,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:33,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:33,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:33,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:33,473 INFO L87 Difference]: Start difference. First operand 24966 states and 139195 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:34,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:34,444 INFO L93 Difference]: Finished difference Result 63755 states and 340377 transitions. [2022-03-01 17:13:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:34,445 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:34,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:34,940 INFO L225 Difference]: With dead ends: 63755 [2022-03-01 17:13:34,941 INFO L226 Difference]: Without dead ends: 61370 [2022-03-01 17:13:34,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:34,941 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 363 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:34,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 330 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:35,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61370 states. [2022-03-01 17:13:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61370 to 24642. [2022-03-01 17:13:36,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24642 states, 24641 states have (on average 5.583174384156488) internal successors, (137575), 24641 states have internal predecessors, (137575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24642 states to 24642 states and 137575 transitions. [2022-03-01 17:13:36,139 INFO L78 Accepts]: Start accepts. Automaton has 24642 states and 137575 transitions. Word has length 33 [2022-03-01 17:13:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:36,139 INFO L470 AbstractCegarLoop]: Abstraction has 24642 states and 137575 transitions. [2022-03-01 17:13:36,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:36,139 INFO L276 IsEmpty]: Start isEmpty. Operand 24642 states and 137575 transitions. [2022-03-01 17:13:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:36,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:36,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:36,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-01 17:13:36,464 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:36,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:36,464 INFO L85 PathProgramCache]: Analyzing trace with hash -860077375, now seen corresponding path program 107 times [2022-03-01 17:13:36,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:36,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560734848] [2022-03-01 17:13:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:36,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:36,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:36,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560734848] [2022-03-01 17:13:36,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560734848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:36,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:36,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:36,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899875005] [2022-03-01 17:13:36,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:36,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:36,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:36,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:36,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:36,692 INFO L87 Difference]: Start difference. First operand 24642 states and 137575 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:37,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:37,736 INFO L93 Difference]: Finished difference Result 63197 states and 337496 transitions. [2022-03-01 17:13:37,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:37,737 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:38,052 INFO L225 Difference]: With dead ends: 63197 [2022-03-01 17:13:38,052 INFO L226 Difference]: Without dead ends: 61382 [2022-03-01 17:13:38,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:38,052 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 383 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:38,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 257 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61382 states. [2022-03-01 17:13:39,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61382 to 24862. [2022-03-01 17:13:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24862 states, 24861 states have (on average 5.573347813844978) internal successors, (138559), 24861 states have internal predecessors, (138559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:39,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24862 states to 24862 states and 138559 transitions. [2022-03-01 17:13:39,474 INFO L78 Accepts]: Start accepts. Automaton has 24862 states and 138559 transitions. Word has length 33 [2022-03-01 17:13:39,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:39,474 INFO L470 AbstractCegarLoop]: Abstraction has 24862 states and 138559 transitions. [2022-03-01 17:13:39,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:39,475 INFO L276 IsEmpty]: Start isEmpty. Operand 24862 states and 138559 transitions. [2022-03-01 17:13:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:39,543 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:39,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:39,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-01 17:13:39,543 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:39,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:39,543 INFO L85 PathProgramCache]: Analyzing trace with hash -641725789, now seen corresponding path program 108 times [2022-03-01 17:13:39,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:39,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294845852] [2022-03-01 17:13:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:39,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:39,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:39,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:39,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294845852] [2022-03-01 17:13:39,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294845852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:39,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:39,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:39,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68650186] [2022-03-01 17:13:39,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:39,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:39,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:39,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:39,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:39,744 INFO L87 Difference]: Start difference. First operand 24862 states and 138559 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:40,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:40,902 INFO L93 Difference]: Finished difference Result 63443 states and 338581 transitions. [2022-03-01 17:13:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:40,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:40,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:41,336 INFO L225 Difference]: With dead ends: 63443 [2022-03-01 17:13:41,336 INFO L226 Difference]: Without dead ends: 61054 [2022-03-01 17:13:41,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:41,336 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 348 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:41,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 332 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:13:41,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61054 states. [2022-03-01 17:13:42,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61054 to 24534. [2022-03-01 17:13:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.587942770961562) internal successors, (137089), 24533 states have internal predecessors, (137089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:42,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137089 transitions. [2022-03-01 17:13:42,859 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137089 transitions. Word has length 33 [2022-03-01 17:13:42,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:42,859 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137089 transitions. [2022-03-01 17:13:42,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:42,860 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137089 transitions. [2022-03-01 17:13:42,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:42,924 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:42,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:42,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-01 17:13:42,925 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1833488447, now seen corresponding path program 109 times [2022-03-01 17:13:42,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:42,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473037220] [2022-03-01 17:13:42,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:42,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:43,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:43,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:43,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473037220] [2022-03-01 17:13:43,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473037220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:43,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:43,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:43,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746736996] [2022-03-01 17:13:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:43,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:43,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:43,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:43,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:43,137 INFO L87 Difference]: Start difference. First operand 24534 states and 137089 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:44,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:44,088 INFO L93 Difference]: Finished difference Result 64826 states and 346320 transitions. [2022-03-01 17:13:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:44,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:44,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:44,600 INFO L225 Difference]: With dead ends: 64826 [2022-03-01 17:13:44,600 INFO L226 Difference]: Without dead ends: 62803 [2022-03-01 17:13:44,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:44,600 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 399 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:44,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 257 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:44,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62803 states. [2022-03-01 17:13:45,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62803 to 25148. [2022-03-01 17:13:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25148 states, 25147 states have (on average 5.576808366803197) internal successors, (140240), 25147 states have internal predecessors, (140240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25148 states to 25148 states and 140240 transitions. [2022-03-01 17:13:45,899 INFO L78 Accepts]: Start accepts. Automaton has 25148 states and 140240 transitions. Word has length 33 [2022-03-01 17:13:45,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:45,899 INFO L470 AbstractCegarLoop]: Abstraction has 25148 states and 140240 transitions. [2022-03-01 17:13:45,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:45,899 INFO L276 IsEmpty]: Start isEmpty. Operand 25148 states and 140240 transitions. [2022-03-01 17:13:46,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:46,251 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:46,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:46,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-01 17:13:46,251 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:46,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:46,251 INFO L85 PathProgramCache]: Analyzing trace with hash -479242303, now seen corresponding path program 110 times [2022-03-01 17:13:46,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:46,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429966372] [2022-03-01 17:13:46,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:46,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:46,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:46,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429966372] [2022-03-01 17:13:46,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429966372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:46,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:46,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:46,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181384319] [2022-03-01 17:13:46,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:46,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:46,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:46,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:46,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:46,454 INFO L87 Difference]: Start difference. First operand 25148 states and 140240 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:47,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:47,559 INFO L93 Difference]: Finished difference Result 64993 states and 346719 transitions. [2022-03-01 17:13:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:47,559 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:47,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:47,899 INFO L225 Difference]: With dead ends: 64993 [2022-03-01 17:13:47,899 INFO L226 Difference]: Without dead ends: 62415 [2022-03-01 17:13:47,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:47,899 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 346 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:47,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 302 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:48,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62415 states. [2022-03-01 17:13:49,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62415 to 24760. [2022-03-01 17:13:49,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24760 states, 24759 states have (on average 5.58237408619088) internal successors, (138214), 24759 states have internal predecessors, (138214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24760 states to 24760 states and 138214 transitions. [2022-03-01 17:13:49,373 INFO L78 Accepts]: Start accepts. Automaton has 24760 states and 138214 transitions. Word has length 33 [2022-03-01 17:13:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:49,373 INFO L470 AbstractCegarLoop]: Abstraction has 24760 states and 138214 transitions. [2022-03-01 17:13:49,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 24760 states and 138214 transitions. [2022-03-01 17:13:49,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:49,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:49,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:49,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-01 17:13:49,440 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:49,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:49,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1980576803, now seen corresponding path program 111 times [2022-03-01 17:13:49,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:49,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747043235] [2022-03-01 17:13:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:49,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:49,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:49,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:49,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747043235] [2022-03-01 17:13:49,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747043235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:49,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:49,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:49,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543852521] [2022-03-01 17:13:49,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:49,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:49,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:49,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:49,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:49,651 INFO L87 Difference]: Start difference. First operand 24760 states and 138214 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:50,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:50,655 INFO L93 Difference]: Finished difference Result 64633 states and 345228 transitions. [2022-03-01 17:13:50,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:50,655 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:50,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:51,164 INFO L225 Difference]: With dead ends: 64633 [2022-03-01 17:13:51,164 INFO L226 Difference]: Without dead ends: 62610 [2022-03-01 17:13:51,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:51,165 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 334 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:51,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 377 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:13:51,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62610 states. [2022-03-01 17:13:52,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62610 to 25084. [2022-03-01 17:13:52,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25084 states, 25083 states have (on average 5.570545787983893) internal successors, (139726), 25083 states have internal predecessors, (139726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25084 states to 25084 states and 139726 transitions. [2022-03-01 17:13:52,619 INFO L78 Accepts]: Start accepts. Automaton has 25084 states and 139726 transitions. Word has length 33 [2022-03-01 17:13:52,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:52,619 INFO L470 AbstractCegarLoop]: Abstraction has 25084 states and 139726 transitions. [2022-03-01 17:13:52,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:52,619 INFO L276 IsEmpty]: Start isEmpty. Operand 25084 states and 139726 transitions. [2022-03-01 17:13:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:52,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:52,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:52,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-01 17:13:52,731 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:52,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1216706497, now seen corresponding path program 112 times [2022-03-01 17:13:52,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:52,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099469143] [2022-03-01 17:13:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:52,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:52,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:52,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099469143] [2022-03-01 17:13:52,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099469143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:52,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:52,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:52,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223468307] [2022-03-01 17:13:52,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:52,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:52,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:52,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:52,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:52,931 INFO L87 Difference]: Start difference. First operand 25084 states and 139726 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:53,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:53,944 INFO L93 Difference]: Finished difference Result 64671 states and 345049 transitions. [2022-03-01 17:13:53,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:53,945 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:54,236 INFO L225 Difference]: With dead ends: 64671 [2022-03-01 17:13:54,236 INFO L226 Difference]: Without dead ends: 62286 [2022-03-01 17:13:54,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:54,237 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 337 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:54,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 312 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:54,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62286 states. [2022-03-01 17:13:55,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62286 to 24760. [2022-03-01 17:13:55,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24760 states, 24759 states have (on average 5.575831010945515) internal successors, (138052), 24759 states have internal predecessors, (138052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:55,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24760 states to 24760 states and 138052 transitions. [2022-03-01 17:13:55,657 INFO L78 Accepts]: Start accepts. Automaton has 24760 states and 138052 transitions. Word has length 33 [2022-03-01 17:13:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:55,658 INFO L470 AbstractCegarLoop]: Abstraction has 24760 states and 138052 transitions. [2022-03-01 17:13:55,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:55,658 INFO L276 IsEmpty]: Start isEmpty. Operand 24760 states and 138052 transitions. [2022-03-01 17:13:55,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:55,723 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:55,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:13:55,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-01 17:13:55,723 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:55,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:55,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1908838337, now seen corresponding path program 113 times [2022-03-01 17:13:55,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:55,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586378249] [2022-03-01 17:13:55,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:55,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:55,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:55,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586378249] [2022-03-01 17:13:55,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586378249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:55,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:55,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:55,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287147765] [2022-03-01 17:13:55,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:55,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:55,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:55,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:55,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:55,919 INFO L87 Difference]: Start difference. First operand 24760 states and 138052 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:56,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:13:56,873 INFO L93 Difference]: Finished difference Result 65114 states and 347170 transitions. [2022-03-01 17:13:56,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:13:56,873 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:13:56,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:13:57,401 INFO L225 Difference]: With dead ends: 65114 [2022-03-01 17:13:57,402 INFO L226 Difference]: Without dead ends: 62924 [2022-03-01 17:13:57,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:13:57,402 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 372 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:13:57,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 307 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:13:57,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62924 states. [2022-03-01 17:13:58,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62924 to 25231. [2022-03-01 17:13:58,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25231 states, 25230 states have (on average 5.554458977407847) internal successors, (140139), 25230 states have internal predecessors, (140139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25231 states to 25231 states and 140139 transitions. [2022-03-01 17:13:58,886 INFO L78 Accepts]: Start accepts. Automaton has 25231 states and 140139 transitions. Word has length 33 [2022-03-01 17:13:58,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:13:58,887 INFO L470 AbstractCegarLoop]: Abstraction has 25231 states and 140139 transitions. [2022-03-01 17:13:58,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:13:58,887 INFO L276 IsEmpty]: Start isEmpty. Operand 25231 states and 140139 transitions. [2022-03-01 17:13:58,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:13:58,973 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:13:58,973 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] [2022-03-01 17:13:58,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-01 17:13:58,974 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:13:58,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:13:58,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1305066333, now seen corresponding path program 114 times [2022-03-01 17:13:58,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:13:58,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795732448] [2022-03-01 17:13:58,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:13:58,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:13:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:13:59,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:13:59,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:13:59,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795732448] [2022-03-01 17:13:59,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795732448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:13:59,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:13:59,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:13:59,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668218748] [2022-03-01 17:13:59,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:13:59,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:13:59,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:13:59,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:13:59,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:13:59,181 INFO L87 Difference]: Start difference. First operand 25231 states and 140139 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:00,222 INFO L93 Difference]: Finished difference Result 64985 states and 346185 transitions. [2022-03-01 17:14:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:00,222 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:00,548 INFO L225 Difference]: With dead ends: 64985 [2022-03-01 17:14:00,548 INFO L226 Difference]: Without dead ends: 62227 [2022-03-01 17:14:00,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:00,549 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 382 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:00,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 287 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:00,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62227 states. [2022-03-01 17:14:01,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62227 to 24534. [2022-03-01 17:14:01,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.584437288550117) internal successors, (137003), 24533 states have internal predecessors, (137003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:01,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137003 transitions. [2022-03-01 17:14:01,972 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137003 transitions. Word has length 33 [2022-03-01 17:14:01,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:01,972 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137003 transitions. [2022-03-01 17:14:01,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:01,972 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137003 transitions. [2022-03-01 17:14:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:02,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:02,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:02,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-01 17:14:02,032 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:02,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:02,032 INFO L85 PathProgramCache]: Analyzing trace with hash -861091937, now seen corresponding path program 115 times [2022-03-01 17:14:02,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:02,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202567168] [2022-03-01 17:14:02,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:02,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:02,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:02,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202567168] [2022-03-01 17:14:02,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202567168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:02,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:02,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:02,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720310957] [2022-03-01 17:14:02,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:02,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:02,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:02,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:02,229 INFO L87 Difference]: Start difference. First operand 24534 states and 137003 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:03,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:03,250 INFO L93 Difference]: Finished difference Result 63838 states and 340516 transitions. [2022-03-01 17:14:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:03,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:03,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:03,833 INFO L225 Difference]: With dead ends: 63838 [2022-03-01 17:14:03,833 INFO L226 Difference]: Without dead ends: 62023 [2022-03-01 17:14:03,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:03,834 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 358 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:03,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 328 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:14:03,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62023 states. [2022-03-01 17:14:04,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62023 to 24992. [2022-03-01 17:14:04,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24992 states, 24991 states have (on average 5.573366411908287) internal successors, (139284), 24991 states have internal predecessors, (139284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24992 states to 24992 states and 139284 transitions. [2022-03-01 17:14:05,333 INFO L78 Accepts]: Start accepts. Automaton has 24992 states and 139284 transitions. Word has length 33 [2022-03-01 17:14:05,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:05,333 INFO L470 AbstractCegarLoop]: Abstraction has 24992 states and 139284 transitions. [2022-03-01 17:14:05,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 24992 states and 139284 transitions. [2022-03-01 17:14:05,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:05,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:05,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:05,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-01 17:14:05,416 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:05,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:05,416 INFO L85 PathProgramCache]: Analyzing trace with hash 645130241, now seen corresponding path program 116 times [2022-03-01 17:14:05,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:05,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343120385] [2022-03-01 17:14:05,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:05,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:05,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:05,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343120385] [2022-03-01 17:14:05,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343120385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:05,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:05,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:05,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179948459] [2022-03-01 17:14:05,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:05,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:05,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:05,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:05,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:05,618 INFO L87 Difference]: Start difference. First operand 24992 states and 139284 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:06,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:06,674 INFO L93 Difference]: Finished difference Result 64213 states and 342179 transitions. [2022-03-01 17:14:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:06,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:06,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:07,151 INFO L225 Difference]: With dead ends: 64213 [2022-03-01 17:14:07,152 INFO L226 Difference]: Without dead ends: 61739 [2022-03-01 17:14:07,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:07,152 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 353 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:07,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 320 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:14:07,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61739 states. [2022-03-01 17:14:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61739 to 24708. [2022-03-01 17:14:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.578904763832113) internal successors, (137838), 24707 states have internal predecessors, (137838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 137838 transitions. [2022-03-01 17:14:08,712 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 137838 transitions. Word has length 33 [2022-03-01 17:14:08,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:08,712 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 137838 transitions. [2022-03-01 17:14:08,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:08,712 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 137838 transitions. [2022-03-01 17:14:08,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:08,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:08,783 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] [2022-03-01 17:14:08,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-01 17:14:08,783 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:08,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:08,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1341993983, now seen corresponding path program 117 times [2022-03-01 17:14:08,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:08,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759681980] [2022-03-01 17:14:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:08,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:08,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:08,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759681980] [2022-03-01 17:14:08,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759681980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:08,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:08,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:08,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532213516] [2022-03-01 17:14:08,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:08,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:08,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:08,980 INFO L87 Difference]: Start difference. First operand 24708 states and 137838 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:09,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:09,951 INFO L93 Difference]: Finished difference Result 63645 states and 339476 transitions. [2022-03-01 17:14:09,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:09,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:10,491 INFO L225 Difference]: With dead ends: 63645 [2022-03-01 17:14:10,491 INFO L226 Difference]: Without dead ends: 61830 [2022-03-01 17:14:10,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:10,492 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 377 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:10,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 271 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:14:10,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61830 states. [2022-03-01 17:14:11,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61830 to 24928. [2022-03-01 17:14:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24928 states, 24927 states have (on average 5.569141894331448) internal successors, (138822), 24927 states have internal predecessors, (138822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24928 states to 24928 states and 138822 transitions. [2022-03-01 17:14:11,963 INFO L78 Accepts]: Start accepts. Automaton has 24928 states and 138822 transitions. Word has length 33 [2022-03-01 17:14:11,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:11,963 INFO L470 AbstractCegarLoop]: Abstraction has 24928 states and 138822 transitions. [2022-03-01 17:14:11,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:11,963 INFO L276 IsEmpty]: Start isEmpty. Operand 24928 states and 138822 transitions. [2022-03-01 17:14:12,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:12,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:12,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:12,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-01 17:14:12,045 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:12,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:12,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1689886593, now seen corresponding path program 118 times [2022-03-01 17:14:12,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:12,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764159935] [2022-03-01 17:14:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:12,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:12,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:12,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764159935] [2022-03-01 17:14:12,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764159935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:12,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:12,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:12,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307683505] [2022-03-01 17:14:12,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:12,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:12,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:12,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:12,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:12,268 INFO L87 Difference]: Start difference. First operand 24928 states and 138822 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:13,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:13,386 INFO L93 Difference]: Finished difference Result 63891 states and 340561 transitions. [2022-03-01 17:14:13,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:13,387 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:13,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:13,718 INFO L225 Difference]: With dead ends: 63891 [2022-03-01 17:14:13,718 INFO L226 Difference]: Without dead ends: 61610 [2022-03-01 17:14:13,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:13,718 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 345 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:13,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 317 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:13,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61610 states. [2022-03-01 17:14:15,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61610 to 24708. [2022-03-01 17:14:15,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.574452584287854) internal successors, (137728), 24707 states have internal predecessors, (137728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 137728 transitions. [2022-03-01 17:14:15,207 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 137728 transitions. Word has length 33 [2022-03-01 17:14:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:15,207 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 137728 transitions. [2022-03-01 17:14:15,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 137728 transitions. [2022-03-01 17:14:15,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:15,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:15,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:15,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-01 17:14:15,275 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:15,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:15,275 INFO L85 PathProgramCache]: Analyzing trace with hash 27606883, now seen corresponding path program 119 times [2022-03-01 17:14:15,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:15,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365623381] [2022-03-01 17:14:15,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:15,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:15,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:15,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:15,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365623381] [2022-03-01 17:14:15,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365623381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:15,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:15,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:15,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957506365] [2022-03-01 17:14:15,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:15,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:15,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:15,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:15,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:15,471 INFO L87 Difference]: Start difference. First operand 24708 states and 137728 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:16,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:16,377 INFO L93 Difference]: Finished difference Result 64646 states and 344422 transitions. [2022-03-01 17:14:16,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:16,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:16,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:16,916 INFO L225 Difference]: With dead ends: 64646 [2022-03-01 17:14:16,916 INFO L226 Difference]: Without dead ends: 62456 [2022-03-01 17:14:16,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:16,917 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 375 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:16,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 277 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:17,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62456 states. [2022-03-01 17:14:17,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62456 to 25179. [2022-03-01 17:14:18,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25179 states, 25178 states have (on average 5.5530621971562475) internal successors, (139815), 25178 states have internal predecessors, (139815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25179 states to 25179 states and 139815 transitions. [2022-03-01 17:14:18,367 INFO L78 Accepts]: Start accepts. Automaton has 25179 states and 139815 transitions. Word has length 33 [2022-03-01 17:14:18,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:18,367 INFO L470 AbstractCegarLoop]: Abstraction has 25179 states and 139815 transitions. [2022-03-01 17:14:18,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 25179 states and 139815 transitions. [2022-03-01 17:14:18,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:18,475 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:18,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:18,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-01 17:14:18,475 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:18,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:18,475 INFO L85 PathProgramCache]: Analyzing trace with hash -819190079, now seen corresponding path program 120 times [2022-03-01 17:14:18,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:18,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989250156] [2022-03-01 17:14:18,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:18,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:18,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:18,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989250156] [2022-03-01 17:14:18,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989250156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:18,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:18,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:18,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851306529] [2022-03-01 17:14:18,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:18,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:18,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:18,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:18,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:18,707 INFO L87 Difference]: Start difference. First operand 25179 states and 139815 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:19,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:19,760 INFO L93 Difference]: Finished difference Result 64517 states and 343437 transitions. [2022-03-01 17:14:19,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:19,760 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:19,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:20,063 INFO L225 Difference]: With dead ends: 64517 [2022-03-01 17:14:20,063 INFO L226 Difference]: Without dead ends: 61691 [2022-03-01 17:14:20,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:20,063 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 377 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:20,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 254 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:20,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61691 states. [2022-03-01 17:14:21,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61691 to 24414. [2022-03-01 17:14:21,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24414 states, 24413 states have (on average 5.5938229631753575) internal successors, (136562), 24413 states have internal predecessors, (136562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:21,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24414 states to 24414 states and 136562 transitions. [2022-03-01 17:14:21,473 INFO L78 Accepts]: Start accepts. Automaton has 24414 states and 136562 transitions. Word has length 33 [2022-03-01 17:14:21,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:21,473 INFO L470 AbstractCegarLoop]: Abstraction has 24414 states and 136562 transitions. [2022-03-01 17:14:21,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:21,473 INFO L276 IsEmpty]: Start isEmpty. Operand 24414 states and 136562 transitions. [2022-03-01 17:14:21,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:21,532 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:21,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:21,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-01 17:14:21,532 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:21,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:21,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1012480053, now seen corresponding path program 121 times [2022-03-01 17:14:21,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:21,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144480268] [2022-03-01 17:14:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:21,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:21,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:21,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:21,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144480268] [2022-03-01 17:14:21,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144480268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:21,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:21,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:21,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901354101] [2022-03-01 17:14:21,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:21,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:21,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:21,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:21,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:21,728 INFO L87 Difference]: Start difference. First operand 24414 states and 136562 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:22,644 INFO L93 Difference]: Finished difference Result 62382 states and 333464 transitions. [2022-03-01 17:14:22,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:22,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:22,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:23,127 INFO L225 Difference]: With dead ends: 62382 [2022-03-01 17:14:23,127 INFO L226 Difference]: Without dead ends: 60567 [2022-03-01 17:14:23,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:23,127 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 399 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:23,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 262 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:23,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60567 states. [2022-03-01 17:14:24,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60567 to 24848. [2022-03-01 17:14:24,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24848 states, 24847 states have (on average 5.588481506821749) internal successors, (138857), 24847 states have internal predecessors, (138857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:24,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24848 states to 24848 states and 138857 transitions. [2022-03-01 17:14:24,407 INFO L78 Accepts]: Start accepts. Automaton has 24848 states and 138857 transitions. Word has length 33 [2022-03-01 17:14:24,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:24,408 INFO L470 AbstractCegarLoop]: Abstraction has 24848 states and 138857 transitions. [2022-03-01 17:14:24,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:24,408 INFO L276 IsEmpty]: Start isEmpty. Operand 24848 states and 138857 transitions. [2022-03-01 17:14:24,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:24,711 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:24,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:24,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-01 17:14:24,712 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:24,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:24,712 INFO L85 PathProgramCache]: Analyzing trace with hash -539518859, now seen corresponding path program 122 times [2022-03-01 17:14:24,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:24,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607194567] [2022-03-01 17:14:24,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:24,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:24,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:24,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:24,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607194567] [2022-03-01 17:14:24,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607194567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:24,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:24,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:24,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652403582] [2022-03-01 17:14:24,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:24,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:24,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:24,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:24,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:24,940 INFO L87 Difference]: Start difference. First operand 24848 states and 138857 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:25,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:25,997 INFO L93 Difference]: Finished difference Result 62590 states and 334408 transitions. [2022-03-01 17:14:25,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:25,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:26,318 INFO L225 Difference]: With dead ends: 62590 [2022-03-01 17:14:26,319 INFO L226 Difference]: Without dead ends: 60351 [2022-03-01 17:14:26,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:26,319 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 349 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:26,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 286 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:26,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60351 states. [2022-03-01 17:14:27,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60351 to 24632. [2022-03-01 17:14:27,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24632 states, 24631 states have (on average 5.593642158255856) internal successors, (137777), 24631 states have internal predecessors, (137777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24632 states to 24632 states and 137777 transitions. [2022-03-01 17:14:27,776 INFO L78 Accepts]: Start accepts. Automaton has 24632 states and 137777 transitions. Word has length 33 [2022-03-01 17:14:27,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:27,776 INFO L470 AbstractCegarLoop]: Abstraction has 24632 states and 137777 transitions. [2022-03-01 17:14:27,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:27,776 INFO L276 IsEmpty]: Start isEmpty. Operand 24632 states and 137777 transitions. [2022-03-01 17:14:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:27,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:27,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:27,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-01 17:14:27,845 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:27,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:27,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1391951477, now seen corresponding path program 123 times [2022-03-01 17:14:27,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:27,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356186476] [2022-03-01 17:14:27,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:27,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:28,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:28,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:28,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356186476] [2022-03-01 17:14:28,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356186476] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:28,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:28,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:28,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610398240] [2022-03-01 17:14:28,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:28,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:28,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:28,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:28,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:28,044 INFO L87 Difference]: Start difference. First operand 24632 states and 137777 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:28,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:28,999 INFO L93 Difference]: Finished difference Result 62617 states and 334415 transitions. [2022-03-01 17:14:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:28,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:28,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:29,510 INFO L225 Difference]: With dead ends: 62617 [2022-03-01 17:14:29,510 INFO L226 Difference]: Without dead ends: 60802 [2022-03-01 17:14:29,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:29,510 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 391 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:29,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 272 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:29,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60802 states. [2022-03-01 17:14:30,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60802 to 24916. [2022-03-01 17:14:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24916 states, 24915 states have (on average 5.582219546457957) internal successors, (139081), 24915 states have internal predecessors, (139081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 139081 transitions. [2022-03-01 17:14:30,773 INFO L78 Accepts]: Start accepts. Automaton has 24916 states and 139081 transitions. Word has length 33 [2022-03-01 17:14:30,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:30,773 INFO L470 AbstractCegarLoop]: Abstraction has 24916 states and 139081 transitions. [2022-03-01 17:14:30,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states and 139081 transitions. [2022-03-01 17:14:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:30,846 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:30,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:30,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-01 17:14:30,846 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:30,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:30,846 INFO L85 PathProgramCache]: Analyzing trace with hash -274071733, now seen corresponding path program 124 times [2022-03-01 17:14:30,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:30,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628432038] [2022-03-01 17:14:30,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:30,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:31,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:31,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628432038] [2022-03-01 17:14:31,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628432038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:31,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:31,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:31,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488452738] [2022-03-01 17:14:31,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:31,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:31,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:31,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:31,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:31,259 INFO L87 Difference]: Start difference. First operand 24916 states and 139081 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:32,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:32,237 INFO L93 Difference]: Finished difference Result 62992 states and 336078 transitions. [2022-03-01 17:14:32,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:32,238 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:32,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:32,850 INFO L225 Difference]: With dead ends: 62992 [2022-03-01 17:14:32,850 INFO L226 Difference]: Without dead ends: 60518 [2022-03-01 17:14:32,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:32,852 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 376 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:32,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 285 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:14:32,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60518 states. [2022-03-01 17:14:34,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60518 to 24632. [2022-03-01 17:14:34,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24632 states, 24631 states have (on average 5.58795826397629) internal successors, (137637), 24631 states have internal predecessors, (137637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:34,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24632 states to 24632 states and 137637 transitions. [2022-03-01 17:14:34,612 INFO L78 Accepts]: Start accepts. Automaton has 24632 states and 137637 transitions. Word has length 33 [2022-03-01 17:14:34,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:34,612 INFO L470 AbstractCegarLoop]: Abstraction has 24632 states and 137637 transitions. [2022-03-01 17:14:34,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:34,612 INFO L276 IsEmpty]: Start isEmpty. Operand 24632 states and 137637 transitions. [2022-03-01 17:14:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:34,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:34,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:34,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-01 17:14:34,708 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:34,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:34,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1263897005, now seen corresponding path program 125 times [2022-03-01 17:14:34,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:34,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064982445] [2022-03-01 17:14:34,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:34,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:34,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:34,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:34,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064982445] [2022-03-01 17:14:34,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064982445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:34,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:34,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:34,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181583135] [2022-03-01 17:14:34,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:34,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:34,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:34,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:34,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:34,907 INFO L87 Difference]: Start difference. First operand 24632 states and 137637 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:35,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:35,907 INFO L93 Difference]: Finished difference Result 63137 states and 337227 transitions. [2022-03-01 17:14:35,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:35,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:35,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:36,243 INFO L225 Difference]: With dead ends: 63137 [2022-03-01 17:14:36,243 INFO L226 Difference]: Without dead ends: 61114 [2022-03-01 17:14:36,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:36,243 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 397 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:36,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 287 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:36,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61114 states. [2022-03-01 17:14:37,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61114 to 25020. [2022-03-01 17:14:37,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25020 states, 25019 states have (on average 5.574523362244694) internal successors, (139469), 25019 states have internal predecessors, (139469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:37,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25020 states to 25020 states and 139469 transitions. [2022-03-01 17:14:37,652 INFO L78 Accepts]: Start accepts. Automaton has 25020 states and 139469 transitions. Word has length 33 [2022-03-01 17:14:37,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:37,652 INFO L470 AbstractCegarLoop]: Abstraction has 25020 states and 139469 transitions. [2022-03-01 17:14:37,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:37,652 INFO L276 IsEmpty]: Start isEmpty. Operand 25020 states and 139469 transitions. [2022-03-01 17:14:37,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:37,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:37,718 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] [2022-03-01 17:14:37,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-01 17:14:37,719 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:37,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:37,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1315098293, now seen corresponding path program 126 times [2022-03-01 17:14:37,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:37,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732423780] [2022-03-01 17:14:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:37,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:37,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:37,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:37,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732423780] [2022-03-01 17:14:37,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732423780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:37,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:37,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:37,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426188545] [2022-03-01 17:14:37,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:37,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:37,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:37,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:37,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:37,915 INFO L87 Difference]: Start difference. First operand 25020 states and 139469 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:38,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:38,853 INFO L93 Difference]: Finished difference Result 63304 states and 337626 transitions. [2022-03-01 17:14:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:38,854 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:38,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:39,375 INFO L225 Difference]: With dead ends: 63304 [2022-03-01 17:14:39,375 INFO L226 Difference]: Without dead ends: 60586 [2022-03-01 17:14:39,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:39,376 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 371 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:39,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [371 Valid, 304 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60586 states. [2022-03-01 17:14:40,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60586 to 24492. [2022-03-01 17:14:40,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24492 states, 24491 states have (on average 5.594259115593483) internal successors, (137009), 24491 states have internal predecessors, (137009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24492 states to 24492 states and 137009 transitions. [2022-03-01 17:14:40,634 INFO L78 Accepts]: Start accepts. Automaton has 24492 states and 137009 transitions. Word has length 33 [2022-03-01 17:14:40,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:40,634 INFO L470 AbstractCegarLoop]: Abstraction has 24492 states and 137009 transitions. [2022-03-01 17:14:40,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 24492 states and 137009 transitions. [2022-03-01 17:14:40,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:40,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:40,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:40,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-01 17:14:40,923 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:40,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:40,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2081097107, now seen corresponding path program 127 times [2022-03-01 17:14:40,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:40,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012322134] [2022-03-01 17:14:40,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:40,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:41,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:41,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012322134] [2022-03-01 17:14:41,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012322134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:41,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:41,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:41,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127940867] [2022-03-01 17:14:41,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:41,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:41,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:41,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:41,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:41,187 INFO L87 Difference]: Start difference. First operand 24492 states and 137009 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:42,296 INFO L93 Difference]: Finished difference Result 61627 states and 329401 transitions. [2022-03-01 17:14:42,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:42,296 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:42,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:42,610 INFO L225 Difference]: With dead ends: 61627 [2022-03-01 17:14:42,610 INFO L226 Difference]: Without dead ends: 59812 [2022-03-01 17:14:42,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:42,611 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 344 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:42,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 341 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:14:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59812 states. [2022-03-01 17:14:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59812 to 24780. [2022-03-01 17:14:43,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24780 states, 24779 states have (on average 5.585415069211833) internal successors, (138401), 24779 states have internal predecessors, (138401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24780 states to 24780 states and 138401 transitions. [2022-03-01 17:14:44,089 INFO L78 Accepts]: Start accepts. Automaton has 24780 states and 138401 transitions. Word has length 33 [2022-03-01 17:14:44,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:44,089 INFO L470 AbstractCegarLoop]: Abstraction has 24780 states and 138401 transitions. [2022-03-01 17:14:44,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:44,089 INFO L276 IsEmpty]: Start isEmpty. Operand 24780 states and 138401 transitions. [2022-03-01 17:14:44,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:44,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:44,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:44,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-01 17:14:44,162 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:44,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:44,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1740908995, now seen corresponding path program 128 times [2022-03-01 17:14:44,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:44,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844587592] [2022-03-01 17:14:44,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:44,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:44,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:44,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844587592] [2022-03-01 17:14:44,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844587592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:44,356 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:44,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:44,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502960116] [2022-03-01 17:14:44,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:44,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:44,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:44,357 INFO L87 Difference]: Start difference. First operand 24780 states and 138401 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:45,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:45,329 INFO L93 Difference]: Finished difference Result 61835 states and 330345 transitions. [2022-03-01 17:14:45,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:45,329 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:45,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:45,868 INFO L225 Difference]: With dead ends: 61835 [2022-03-01 17:14:45,869 INFO L226 Difference]: Without dead ends: 59596 [2022-03-01 17:14:45,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:45,869 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 365 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:45,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 289 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:45,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59596 states. [2022-03-01 17:14:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59596 to 24564. [2022-03-01 17:14:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24564 states, 24563 states have (on average 5.5920286609941785) internal successors, (137357), 24563 states have internal predecessors, (137357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:47,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24564 states to 24564 states and 137357 transitions. [2022-03-01 17:14:47,034 INFO L78 Accepts]: Start accepts. Automaton has 24564 states and 137357 transitions. Word has length 33 [2022-03-01 17:14:47,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:47,035 INFO L470 AbstractCegarLoop]: Abstraction has 24564 states and 137357 transitions. [2022-03-01 17:14:47,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:47,035 INFO L276 IsEmpty]: Start isEmpty. Operand 24564 states and 137357 transitions. [2022-03-01 17:14:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:47,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:47,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:47,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-01 17:14:47,098 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:47,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1132807563, now seen corresponding path program 129 times [2022-03-01 17:14:47,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:47,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713347883] [2022-03-01 17:14:47,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:47,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:47,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:47,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713347883] [2022-03-01 17:14:47,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713347883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:47,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:47,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:47,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973640073] [2022-03-01 17:14:47,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:47,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:47,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:47,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:47,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:47,299 INFO L87 Difference]: Start difference. First operand 24564 states and 137357 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:48,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:48,523 INFO L93 Difference]: Finished difference Result 61347 states and 327749 transitions. [2022-03-01 17:14:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:48,523 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:48,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:48,832 INFO L225 Difference]: With dead ends: 61347 [2022-03-01 17:14:48,832 INFO L226 Difference]: Without dead ends: 59532 [2022-03-01 17:14:48,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:48,832 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 364 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:48,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 271 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:48,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59532 states. [2022-03-01 17:14:49,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59532 to 24708. [2022-03-01 17:14:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.584692597239648) internal successors, (137981), 24707 states have internal predecessors, (137981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:50,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 137981 transitions. [2022-03-01 17:14:50,263 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 137981 transitions. Word has length 33 [2022-03-01 17:14:50,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:50,263 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 137981 transitions. [2022-03-01 17:14:50,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:50,264 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 137981 transitions. [2022-03-01 17:14:50,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:50,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:50,335 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] [2022-03-01 17:14:50,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-01 17:14:50,335 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:50,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1131844321, now seen corresponding path program 130 times [2022-03-01 17:14:50,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:50,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987794406] [2022-03-01 17:14:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:50,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:50,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:50,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987794406] [2022-03-01 17:14:50,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987794406] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:50,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:50,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:50,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704701437] [2022-03-01 17:14:50,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:50,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:50,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:50,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:50,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:50,528 INFO L87 Difference]: Start difference. First operand 24708 states and 137981 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:51,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:51,467 INFO L93 Difference]: Finished difference Result 61347 states and 327605 transitions. [2022-03-01 17:14:51,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:51,467 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:51,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:51,752 INFO L225 Difference]: With dead ends: 61347 [2022-03-01 17:14:51,753 INFO L226 Difference]: Without dead ends: 59388 [2022-03-01 17:14:51,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:51,753 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 338 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:51,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 279 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:14:51,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59388 states. [2022-03-01 17:14:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59388 to 24564. [2022-03-01 17:14:53,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24564 states, 24563 states have (on average 5.589097422953222) internal successors, (137285), 24563 states have internal predecessors, (137285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:53,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24564 states to 24564 states and 137285 transitions. [2022-03-01 17:14:53,130 INFO L78 Accepts]: Start accepts. Automaton has 24564 states and 137285 transitions. Word has length 33 [2022-03-01 17:14:53,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:53,130 INFO L470 AbstractCegarLoop]: Abstraction has 24564 states and 137285 transitions. [2022-03-01 17:14:53,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:53,130 INFO L276 IsEmpty]: Start isEmpty. Operand 24564 states and 137285 transitions. [2022-03-01 17:14:53,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:53,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:53,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:53,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-01 17:14:53,196 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:53,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:53,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1368277469, now seen corresponding path program 131 times [2022-03-01 17:14:53,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:53,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137437031] [2022-03-01 17:14:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:53,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:53,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:53,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:53,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137437031] [2022-03-01 17:14:53,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137437031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:53,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:53,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:53,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399034359] [2022-03-01 17:14:53,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:53,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:53,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:53,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:53,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:53,390 INFO L87 Difference]: Start difference. First operand 24564 states and 137285 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:54,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:54,431 INFO L93 Difference]: Finished difference Result 61835 states and 330417 transitions. [2022-03-01 17:14:54,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:54,431 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:54,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:55,026 INFO L225 Difference]: With dead ends: 61835 [2022-03-01 17:14:55,026 INFO L226 Difference]: Without dead ends: 59812 [2022-03-01 17:14:55,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:55,026 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 337 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:55,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 313 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:14:55,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59812 states. [2022-03-01 17:14:56,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59812 to 24780. [2022-03-01 17:14:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24780 states, 24779 states have (on average 5.579603696678639) internal successors, (138257), 24779 states have internal predecessors, (138257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:56,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24780 states to 24780 states and 138257 transitions. [2022-03-01 17:14:56,302 INFO L78 Accepts]: Start accepts. Automaton has 24780 states and 138257 transitions. Word has length 33 [2022-03-01 17:14:56,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:14:56,302 INFO L470 AbstractCegarLoop]: Abstraction has 24780 states and 138257 transitions. [2022-03-01 17:14:56,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:56,303 INFO L276 IsEmpty]: Start isEmpty. Operand 24780 states and 138257 transitions. [2022-03-01 17:14:56,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:14:56,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:14:56,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:14:56,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-01 17:14:56,662 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:14:56,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:14:56,663 INFO L85 PathProgramCache]: Analyzing trace with hash 883352833, now seen corresponding path program 132 times [2022-03-01 17:14:56,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:14:56,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717792027] [2022-03-01 17:14:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:14:56,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:14:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:14:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:14:56,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:14:56,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717792027] [2022-03-01 17:14:56,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717792027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:14:56,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:14:56,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:14:56,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386263972] [2022-03-01 17:14:56,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:14:56,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:14:56,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:14:56,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:14:56,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:14:56,862 INFO L87 Difference]: Start difference. First operand 24780 states and 138257 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:14:57,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:14:57,979 INFO L93 Difference]: Finished difference Result 61627 states and 329041 transitions. [2022-03-01 17:14:57,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:14:57,979 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:14:57,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:14:58,588 INFO L225 Difference]: With dead ends: 61627 [2022-03-01 17:14:58,588 INFO L226 Difference]: Without dead ends: 59524 [2022-03-01 17:14:58,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:14:58,589 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 355 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:14:58,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 320 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:14:58,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59524 states. [2022-03-01 17:14:59,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59524 to 24492. [2022-03-01 17:14:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24492 states, 24491 states have (on average 5.59278918786493) internal successors, (136973), 24491 states have internal predecessors, (136973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24492 states to 24492 states and 136973 transitions. [2022-03-01 17:15:00,063 INFO L78 Accepts]: Start accepts. Automaton has 24492 states and 136973 transitions. Word has length 33 [2022-03-01 17:15:00,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:00,063 INFO L470 AbstractCegarLoop]: Abstraction has 24492 states and 136973 transitions. [2022-03-01 17:15:00,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:00,063 INFO L276 IsEmpty]: Start isEmpty. Operand 24492 states and 136973 transitions. [2022-03-01 17:15:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:00,396 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:00,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:00,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-01 17:15:00,397 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:00,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:00,397 INFO L85 PathProgramCache]: Analyzing trace with hash -684496873, now seen corresponding path program 133 times [2022-03-01 17:15:00,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:00,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854216150] [2022-03-01 17:15:00,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:00,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:00,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:00,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854216150] [2022-03-01 17:15:00,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854216150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:00,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:00,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:00,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753391527] [2022-03-01 17:15:00,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:00,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:00,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:00,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:00,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:00,609 INFO L87 Difference]: Start difference. First operand 24492 states and 136973 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:01,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:01,707 INFO L93 Difference]: Finished difference Result 61682 states and 329356 transitions. [2022-03-01 17:15:01,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:01,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:01,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:02,042 INFO L225 Difference]: With dead ends: 61682 [2022-03-01 17:15:02,042 INFO L226 Difference]: Without dead ends: 59867 [2022-03-01 17:15:02,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:02,043 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 363 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:02,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 282 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:02,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59867 states. [2022-03-01 17:15:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59867 to 24740. [2022-03-01 17:15:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24740 states, 24739 states have (on average 5.58603823921743) internal successors, (138193), 24739 states have internal predecessors, (138193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:03,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24740 states to 24740 states and 138193 transitions. [2022-03-01 17:15:03,533 INFO L78 Accepts]: Start accepts. Automaton has 24740 states and 138193 transitions. Word has length 33 [2022-03-01 17:15:03,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:03,533 INFO L470 AbstractCegarLoop]: Abstraction has 24740 states and 138193 transitions. [2022-03-01 17:15:03,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 24740 states and 138193 transitions. [2022-03-01 17:15:03,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:03,602 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:03,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:03,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-01 17:15:03,603 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:03,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:03,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1580155011, now seen corresponding path program 134 times [2022-03-01 17:15:03,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:03,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979986579] [2022-03-01 17:15:03,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:03,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:03,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:03,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:03,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979986579] [2022-03-01 17:15:03,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979986579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:03,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:03,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:03,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935651551] [2022-03-01 17:15:03,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:03,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:03,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:03,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:03,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:03,803 INFO L87 Difference]: Start difference. First operand 24740 states and 138193 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:04,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:04,780 INFO L93 Difference]: Finished difference Result 61682 states and 329212 transitions. [2022-03-01 17:15:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:04,781 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:04,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:05,274 INFO L225 Difference]: With dead ends: 61682 [2022-03-01 17:15:05,275 INFO L226 Difference]: Without dead ends: 59723 [2022-03-01 17:15:05,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:05,275 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 375 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:05,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 294 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:05,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59723 states. [2022-03-01 17:15:06,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59723 to 24596. [2022-03-01 17:15:06,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24596 states, 24595 states have (on average 5.590445212441553) internal successors, (137497), 24595 states have internal predecessors, (137497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:06,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24596 states to 24596 states and 137497 transitions. [2022-03-01 17:15:06,443 INFO L78 Accepts]: Start accepts. Automaton has 24596 states and 137497 transitions. Word has length 33 [2022-03-01 17:15:06,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:06,443 INFO L470 AbstractCegarLoop]: Abstraction has 24596 states and 137497 transitions. [2022-03-01 17:15:06,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 24596 states and 137497 transitions. [2022-03-01 17:15:06,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:06,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:06,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:06,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-01 17:15:06,508 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:06,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:06,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1236249611, now seen corresponding path program 135 times [2022-03-01 17:15:06,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:06,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647238207] [2022-03-01 17:15:06,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:06,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:06,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:06,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:06,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647238207] [2022-03-01 17:15:06,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647238207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:06,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:06,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:06,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494690921] [2022-03-01 17:15:06,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:06,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:06,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:06,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:06,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:06,908 INFO L87 Difference]: Start difference. First operand 24596 states and 137497 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:07,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:07,940 INFO L93 Difference]: Finished difference Result 62197 states and 331923 transitions. [2022-03-01 17:15:07,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:07,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:08,276 INFO L225 Difference]: With dead ends: 62197 [2022-03-01 17:15:08,277 INFO L226 Difference]: Without dead ends: 60382 [2022-03-01 17:15:08,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:08,277 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 340 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:08,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 317 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:08,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60382 states. [2022-03-01 17:15:09,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60382 to 24880. [2022-03-01 17:15:09,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24880 states, 24879 states have (on average 5.579042566019535) internal successors, (138801), 24879 states have internal predecessors, (138801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:09,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24880 states to 24880 states and 138801 transitions. [2022-03-01 17:15:09,791 INFO L78 Accepts]: Start accepts. Automaton has 24880 states and 138801 transitions. Word has length 33 [2022-03-01 17:15:09,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:09,791 INFO L470 AbstractCegarLoop]: Abstraction has 24880 states and 138801 transitions. [2022-03-01 17:15:09,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:09,791 INFO L276 IsEmpty]: Start isEmpty. Operand 24880 states and 138801 transitions. [2022-03-01 17:15:09,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:09,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:09,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:09,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-01 17:15:09,860 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:09,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:09,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1403566633, now seen corresponding path program 136 times [2022-03-01 17:15:09,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:09,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308087826] [2022-03-01 17:15:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:09,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:10,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:10,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308087826] [2022-03-01 17:15:10,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308087826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:10,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:10,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:10,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719612805] [2022-03-01 17:15:10,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:10,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:10,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:10,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:10,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:10,056 INFO L87 Difference]: Start difference. First operand 24880 states and 138801 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:10,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:10,977 INFO L93 Difference]: Finished difference Result 62572 states and 333586 transitions. [2022-03-01 17:15:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:10,977 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:10,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:11,270 INFO L225 Difference]: With dead ends: 62572 [2022-03-01 17:15:11,270 INFO L226 Difference]: Without dead ends: 60098 [2022-03-01 17:15:11,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:11,270 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 354 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:11,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 290 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:11,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60098 states. [2022-03-01 17:15:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60098 to 24596. [2022-03-01 17:15:12,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24596 states, 24595 states have (on average 5.586216710713559) internal successors, (137393), 24595 states have internal predecessors, (137393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:12,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24596 states to 24596 states and 137393 transitions. [2022-03-01 17:15:12,646 INFO L78 Accepts]: Start accepts. Automaton has 24596 states and 137393 transitions. Word has length 33 [2022-03-01 17:15:12,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:12,646 INFO L470 AbstractCegarLoop]: Abstraction has 24596 states and 137393 transitions. [2022-03-01 17:15:12,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:12,647 INFO L276 IsEmpty]: Start isEmpty. Operand 24596 states and 137393 transitions. [2022-03-01 17:15:12,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:12,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:12,712 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] [2022-03-01 17:15:12,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-01 17:15:12,712 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:12,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:12,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1945040765, now seen corresponding path program 137 times [2022-03-01 17:15:12,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:12,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816044030] [2022-03-01 17:15:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:12,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:12,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:12,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816044030] [2022-03-01 17:15:12,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816044030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:12,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:12,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:12,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240296727] [2022-03-01 17:15:12,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:12,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:12,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:12,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:12,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:12,900 INFO L87 Difference]: Start difference. First operand 24596 states and 137393 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:13,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:13,911 INFO L93 Difference]: Finished difference Result 62197 states and 331819 transitions. [2022-03-01 17:15:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:13,912 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:13,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:14,526 INFO L225 Difference]: With dead ends: 62197 [2022-03-01 17:15:14,526 INFO L226 Difference]: Without dead ends: 60382 [2022-03-01 17:15:14,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:14,526 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 358 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:14,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 299 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:14,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60382 states. [2022-03-01 17:15:15,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60382 to 24880. [2022-03-01 17:15:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24880 states, 24879 states have (on average 5.574862333695084) internal successors, (138697), 24879 states have internal predecessors, (138697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:15,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24880 states to 24880 states and 138697 transitions. [2022-03-01 17:15:15,948 INFO L78 Accepts]: Start accepts. Automaton has 24880 states and 138697 transitions. Word has length 33 [2022-03-01 17:15:15,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:15,948 INFO L470 AbstractCegarLoop]: Abstraction has 24880 states and 138697 transitions. [2022-03-01 17:15:15,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 24880 states and 138697 transitions. [2022-03-01 17:15:16,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:16,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:16,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:16,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-01 17:15:16,026 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:16,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:16,026 INFO L85 PathProgramCache]: Analyzing trace with hash 43209697, now seen corresponding path program 138 times [2022-03-01 17:15:16,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:16,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290184541] [2022-03-01 17:15:16,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:16,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:16,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:16,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:16,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290184541] [2022-03-01 17:15:16,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290184541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:16,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:16,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:16,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985750801] [2022-03-01 17:15:16,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:16,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:16,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:16,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:16,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:16,217 INFO L87 Difference]: Start difference. First operand 24880 states and 138697 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:17,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:17,181 INFO L93 Difference]: Finished difference Result 62572 states and 333482 transitions. [2022-03-01 17:15:17,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:17,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:17,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:17,483 INFO L225 Difference]: With dead ends: 62572 [2022-03-01 17:15:17,483 INFO L226 Difference]: Without dead ends: 59994 [2022-03-01 17:15:17,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:17,483 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 356 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:17,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 304 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:17,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59994 states. [2022-03-01 17:15:18,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59994 to 24492. [2022-03-01 17:15:18,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24492 states, 24491 states have (on average 5.590665958923687) internal successors, (136921), 24491 states have internal predecessors, (136921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:18,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24492 states to 24492 states and 136921 transitions. [2022-03-01 17:15:18,869 INFO L78 Accepts]: Start accepts. Automaton has 24492 states and 136921 transitions. Word has length 33 [2022-03-01 17:15:18,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:18,869 INFO L470 AbstractCegarLoop]: Abstraction has 24492 states and 136921 transitions. [2022-03-01 17:15:18,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 24492 states and 136921 transitions. [2022-03-01 17:15:18,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:18,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:18,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:18,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-01 17:15:18,929 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:18,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1613024443, now seen corresponding path program 139 times [2022-03-01 17:15:18,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:18,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899907109] [2022-03-01 17:15:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:18,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:19,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:19,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:19,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899907109] [2022-03-01 17:15:19,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899907109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:19,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:19,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:19,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597280432] [2022-03-01 17:15:19,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:19,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:19,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:19,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:19,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:19,129 INFO L87 Difference]: Start difference. First operand 24492 states and 136921 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:20,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:20,049 INFO L93 Difference]: Finished difference Result 62590 states and 334484 transitions. [2022-03-01 17:15:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:20,050 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:20,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:20,547 INFO L225 Difference]: With dead ends: 62590 [2022-03-01 17:15:20,547 INFO L226 Difference]: Without dead ends: 60567 [2022-03-01 17:15:20,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:20,548 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 348 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:20,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 284 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:20,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60567 states. [2022-03-01 17:15:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60567 to 24848. [2022-03-01 17:15:21,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24848 states, 24847 states have (on average 5.582847023785567) internal successors, (138717), 24847 states have internal predecessors, (138717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:21,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24848 states to 24848 states and 138717 transitions. [2022-03-01 17:15:21,778 INFO L78 Accepts]: Start accepts. Automaton has 24848 states and 138717 transitions. Word has length 33 [2022-03-01 17:15:21,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:21,778 INFO L470 AbstractCegarLoop]: Abstraction has 24848 states and 138717 transitions. [2022-03-01 17:15:21,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:21,779 INFO L276 IsEmpty]: Start isEmpty. Operand 24848 states and 138717 transitions. [2022-03-01 17:15:22,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:22,068 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:22,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:22,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-01 17:15:22,068 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:22,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:22,069 INFO L85 PathProgramCache]: Analyzing trace with hash 638605859, now seen corresponding path program 140 times [2022-03-01 17:15:22,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:22,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100582061] [2022-03-01 17:15:22,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:22,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:22,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:22,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100582061] [2022-03-01 17:15:22,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100582061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:22,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:22,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:22,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200694564] [2022-03-01 17:15:22,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:22,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:22,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:22,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:22,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:22,324 INFO L87 Difference]: Start difference. First operand 24848 states and 138717 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:23,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:23,346 INFO L93 Difference]: Finished difference Result 62382 states and 333108 transitions. [2022-03-01 17:15:23,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:23,346 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:23,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:23,661 INFO L225 Difference]: With dead ends: 62382 [2022-03-01 17:15:23,661 INFO L226 Difference]: Without dead ends: 60351 [2022-03-01 17:15:23,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:23,661 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 356 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:23,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 275 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:23,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60351 states. [2022-03-01 17:15:24,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60351 to 24632. [2022-03-01 17:15:24,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24632 states, 24631 states have (on average 5.58795826397629) internal successors, (137637), 24631 states have internal predecessors, (137637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:25,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24632 states to 24632 states and 137637 transitions. [2022-03-01 17:15:25,086 INFO L78 Accepts]: Start accepts. Automaton has 24632 states and 137637 transitions. Word has length 33 [2022-03-01 17:15:25,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:25,087 INFO L470 AbstractCegarLoop]: Abstraction has 24632 states and 137637 transitions. [2022-03-01 17:15:25,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:25,087 INFO L276 IsEmpty]: Start isEmpty. Operand 24632 states and 137637 transitions. [2022-03-01 17:15:25,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:25,153 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:25,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:25,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-01 17:15:25,154 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:25,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:25,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2130190115, now seen corresponding path program 141 times [2022-03-01 17:15:25,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:25,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150477465] [2022-03-01 17:15:25,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:25,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:25,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:25,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150477465] [2022-03-01 17:15:25,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150477465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:25,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:25,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:25,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128380054] [2022-03-01 17:15:25,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:25,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:25,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:25,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:25,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:25,354 INFO L87 Difference]: Start difference. First operand 24632 states and 137637 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:26,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:26,328 INFO L93 Difference]: Finished difference Result 63137 states and 337227 transitions. [2022-03-01 17:15:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:26,328 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:26,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:26,865 INFO L225 Difference]: With dead ends: 63137 [2022-03-01 17:15:26,866 INFO L226 Difference]: Without dead ends: 61114 [2022-03-01 17:15:26,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:26,866 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 362 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:26,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 267 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:26,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61114 states. [2022-03-01 17:15:27,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61114 to 25020. [2022-03-01 17:15:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25020 states, 25019 states have (on average 5.574523362244694) internal successors, (139469), 25019 states have internal predecessors, (139469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:28,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25020 states to 25020 states and 139469 transitions. [2022-03-01 17:15:28,040 INFO L78 Accepts]: Start accepts. Automaton has 25020 states and 139469 transitions. Word has length 33 [2022-03-01 17:15:28,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:28,040 INFO L470 AbstractCegarLoop]: Abstraction has 25020 states and 139469 transitions. [2022-03-01 17:15:28,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 25020 states and 139469 transitions. [2022-03-01 17:15:28,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:28,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:28,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:28,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-01 17:15:28,107 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:28,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:28,108 INFO L85 PathProgramCache]: Analyzing trace with hash -810531037, now seen corresponding path program 142 times [2022-03-01 17:15:28,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:28,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063175417] [2022-03-01 17:15:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:28,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:28,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:28,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063175417] [2022-03-01 17:15:28,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063175417] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:28,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:28,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:28,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521279765] [2022-03-01 17:15:28,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:28,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:28,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:28,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:28,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:28,551 INFO L87 Difference]: Start difference. First operand 25020 states and 139469 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:29,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:29,556 INFO L93 Difference]: Finished difference Result 63304 states and 337626 transitions. [2022-03-01 17:15:29,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:29,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:29,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:29,885 INFO L225 Difference]: With dead ends: 63304 [2022-03-01 17:15:29,885 INFO L226 Difference]: Without dead ends: 60726 [2022-03-01 17:15:29,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:29,886 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 370 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:29,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 294 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:29,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60726 states. [2022-03-01 17:15:30,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60726 to 24632. [2022-03-01 17:15:31,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24632 states, 24631 states have (on average 5.582274369696724) internal successors, (137497), 24631 states have internal predecessors, (137497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24632 states to 24632 states and 137497 transitions. [2022-03-01 17:15:31,339 INFO L78 Accepts]: Start accepts. Automaton has 24632 states and 137497 transitions. Word has length 33 [2022-03-01 17:15:31,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:31,339 INFO L470 AbstractCegarLoop]: Abstraction has 24632 states and 137497 transitions. [2022-03-01 17:15:31,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:31,339 INFO L276 IsEmpty]: Start isEmpty. Operand 24632 states and 137497 transitions. [2022-03-01 17:15:31,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:31,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:31,408 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] [2022-03-01 17:15:31,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-01 17:15:31,408 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:31,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:31,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1182429567, now seen corresponding path program 143 times [2022-03-01 17:15:31,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:31,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949638262] [2022-03-01 17:15:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:31,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:31,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:31,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949638262] [2022-03-01 17:15:31,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949638262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:31,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:31,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:31,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094969538] [2022-03-01 17:15:31,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:31,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:31,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:31,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:31,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:31,601 INFO L87 Difference]: Start difference. First operand 24632 states and 137497 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:32,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:15:32,659 INFO L93 Difference]: Finished difference Result 62617 states and 334135 transitions. [2022-03-01 17:15:32,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:15:32,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-01 17:15:32,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:15:32,957 INFO L225 Difference]: With dead ends: 62617 [2022-03-01 17:15:32,957 INFO L226 Difference]: Without dead ends: 60802 [2022-03-01 17:15:32,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:15:32,957 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 343 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:15:32,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 336 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:15:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60802 states. [2022-03-01 17:15:34,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60802 to 24916. [2022-03-01 17:15:34,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24916 states, 24915 states have (on average 5.570981336544251) internal successors, (138801), 24915 states have internal predecessors, (138801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:34,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 138801 transitions. [2022-03-01 17:15:34,412 INFO L78 Accepts]: Start accepts. Automaton has 24916 states and 138801 transitions. Word has length 33 [2022-03-01 17:15:34,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:15:34,412 INFO L470 AbstractCegarLoop]: Abstraction has 24916 states and 138801 transitions. [2022-03-01 17:15:34,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:15:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states and 138801 transitions. [2022-03-01 17:15:34,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-01 17:15:34,483 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:15:34,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:15:34,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-01 17:15:34,483 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-01 17:15:34,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:15:34,483 INFO L85 PathProgramCache]: Analyzing trace with hash 323792611, now seen corresponding path program 144 times [2022-03-01 17:15:34,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:15:34,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281314928] [2022-03-01 17:15:34,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:15:34,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:15:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:15:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:15:34,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:15:34,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281314928] [2022-03-01 17:15:34,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281314928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:15:34,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:15:34,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:15:34,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179247777] [2022-03-01 17:15:34,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:15:34,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:15:34,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:15:34,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:15:34,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:15:34,677 INFO L87 Difference]: Start difference. First operand 24916 states and 138801 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)