/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 14:16:35,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 14:16:35,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 14:16:35,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 14:16:35,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 14:16:35,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 14:16:35,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 14:16:35,126 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-Separate.epf [2022-01-18 14:16:35,146 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 14:16:35,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 14:16:35,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 14:16:35,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 14:16:35,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 14:16:35,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 14:16:35,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 14:16:35,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 14:16:35,153 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 14:16:35,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 14:16:35,153 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 14:16:35,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 14:16:35,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 14:16:35,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 14:16:35,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 14:16:35,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 14:16:35,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 14:16:35,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 14:16:35,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 14:16:35,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 14:16:35,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 14:16:35,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 14:16:35,156 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 14:16:35,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 14:16:35,156 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 14:16:35,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 14:16:35,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 14:16:35,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 14:16:35,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 14:16:35,342 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 14:16:35,347 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 14:16:35,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl [2022-01-18 14:16:35,349 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl' [2022-01-18 14:16:35,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 14:16:35,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 14:16:35,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 14:16:35,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 14:16:35,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 14:16:35,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,384 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 14:16:35,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 14:16:35,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 14:16:35,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 14:16:35,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 14:16:35,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 14:16:35,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 14:16:35,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 14:16:35,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 14:16:35,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/1) ... [2022-01-18 14:16:35,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 14:16:35,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 14:16:35,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 14:16:35,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 14:16:35,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-01-18 14:16:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-01-18 14:16:35,458 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-01-18 14:16:35,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-01-18 14:16:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-01-18 14:16:35,458 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-01-18 14:16:35,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-01-18 14:16:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-01-18 14:16:35,459 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-01-18 14:16:35,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-01-18 14:16:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-01-18 14:16:35,459 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-01-18 14:16:35,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-01-18 14:16:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-01-18 14:16:35,460 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-01-18 14:16:35,460 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 14:16:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 14:16:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 14:16:35,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-01-18 14:16:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-01-18 14:16:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-01-18 14:16:35,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-01-18 14:16:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-01-18 14:16:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-01-18 14:16:35,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-01-18 14:16:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-01-18 14:16:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-01-18 14:16:35,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2022-01-18 14:16:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2022-01-18 14:16:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2022-01-18 14:16:35,464 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 14:16:35,499 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 14:16:35,500 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 14:16:35,569 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 14:16:35,574 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 14:16:35,574 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 14:16:35,576 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:16:35 BoogieIcfgContainer [2022-01-18 14:16:35,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 14:16:35,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 14:16:35,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 14:16:35,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 14:16:35,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:16:35" (1/2) ... [2022-01-18 14:16:35,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639a7042 and model type example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:16:35, skipping insertion in model container [2022-01-18 14:16:35,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:16:35" (2/2) ... [2022-01-18 14:16:35,581 INFO L111 eAbstractionObserver]: Analyzing ICFG example_9.bpl [2022-01-18 14:16:35,584 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 14:16:35,584 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 14:16:35,584 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 14:16:35,584 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 14:16:35,660 INFO L148 ThreadInstanceAdder]: Constructed 81 joinOtherThreadTransitions. [2022-01-18 14:16:35,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 14:16:35,705 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 14:16:35,705 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-18 14:16:35,713 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 120 transitions, 528 flow [2022-01-18 14:16:49,660 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 271986 states, 271985 states have (on average 6.7228780998952145) internal successors, (1828522), 271985 states have internal predecessors, (1828522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:16:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 271986 states, 271985 states have (on average 6.7228780998952145) internal successors, (1828522), 271985 states have internal predecessors, (1828522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:16:52,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:16:52,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:16:52,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:16:52,404 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:16:52,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:16:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash -35739592, now seen corresponding path program 1 times [2022-01-18 14:16:52,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:16:52,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616702664] [2022-01-18 14:16:52,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:16:52,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:16:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:16:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:16:52,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:16:52,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616702664] [2022-01-18 14:16:52,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616702664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:16:52,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:16:52,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:16:52,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329846476] [2022-01-18 14:16:52,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:16:52,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 14:16:52,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:16:52,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 14:16:52,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:16:53,199 INFO L87 Difference]: Start difference. First operand has 271986 states, 271985 states have (on average 6.7228780998952145) internal successors, (1828522), 271985 states have internal predecessors, (1828522), 0 states have call successors, (0), 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 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:16:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:16:56,601 INFO L93 Difference]: Finished difference Result 213909 states and 1404973 transitions. [2022-01-18 14:16:56,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 14:16:56,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:16:56,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:16:58,784 INFO L225 Difference]: With dead ends: 213909 [2022-01-18 14:16:58,785 INFO L226 Difference]: Without dead ends: 213909 [2022-01-18 14:16:58,786 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 [2022-01-18 14:16:58,788 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 94 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:16:58,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 35 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:17:00,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213909 states. [2022-01-18 14:17:12,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213909 to 213909. [2022-01-18 14:17:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213909 states, 213908 states have (on average 6.568118069450418) internal successors, (1404973), 213908 states have internal predecessors, (1404973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:17:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213909 states to 213909 states and 1404973 transitions. [2022-01-18 14:17:15,614 INFO L78 Accepts]: Start accepts. Automaton has 213909 states and 1404973 transitions. Word has length 37 [2022-01-18 14:17:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:17:15,615 INFO L470 AbstractCegarLoop]: Abstraction has 213909 states and 1404973 transitions. [2022-01-18 14:17:15,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:17:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 213909 states and 1404973 transitions. [2022-01-18 14:17:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:17:16,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:17:16,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:17:16,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 14:17:16,565 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:17:16,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:17:16,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1904068604, now seen corresponding path program 1 times [2022-01-18 14:17:16,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:17:16,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029743443] [2022-01-18 14:17:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:17:16,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:17:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:17:16,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:17:16,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:17:16,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029743443] [2022-01-18 14:17:16,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029743443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:17:16,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:17:16,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:17:16,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765003420] [2022-01-18 14:17:16,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:17:16,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 14:17:16,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:17:16,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 14:17:16,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:17:16,595 INFO L87 Difference]: Start difference. First operand 213909 states and 1404973 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:17:19,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:17:19,259 INFO L93 Difference]: Finished difference Result 192039 states and 1230742 transitions. [2022-01-18 14:17:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 14:17:19,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:17:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:17:21,183 INFO L225 Difference]: With dead ends: 192039 [2022-01-18 14:17:21,183 INFO L226 Difference]: Without dead ends: 192039 [2022-01-18 14:17:21,183 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 [2022-01-18 14:17:21,184 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 85 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:17:21,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 27 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:17:21,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192039 states. [2022-01-18 14:17:28,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192039 to 192039. [2022-01-18 14:17:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192039 states, 192038 states have (on average 6.4088461658630065) internal successors, (1230742), 192038 states have internal predecessors, (1230742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:17:30,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192039 states to 192039 states and 1230742 transitions. [2022-01-18 14:17:30,869 INFO L78 Accepts]: Start accepts. Automaton has 192039 states and 1230742 transitions. Word has length 37 [2022-01-18 14:17:30,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:17:30,869 INFO L470 AbstractCegarLoop]: Abstraction has 192039 states and 1230742 transitions. [2022-01-18 14:17:30,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:17:30,869 INFO L276 IsEmpty]: Start isEmpty. Operand 192039 states and 1230742 transitions. [2022-01-18 14:17:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:17:32,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:17:32,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:17:32,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 14:17:32,089 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:17:32,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:17:32,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1595584380, now seen corresponding path program 1 times [2022-01-18 14:17:32,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:17:32,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792171738] [2022-01-18 14:17:32,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:17:32,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:17:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:17:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:17:32,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:17:32,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792171738] [2022-01-18 14:17:32,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792171738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:17:32,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:17:32,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:17:32,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373624907] [2022-01-18 14:17:32,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:17:32,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 14:17:32,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:17:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 14:17:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:17:32,127 INFO L87 Difference]: Start difference. First operand 192039 states and 1230742 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:17:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:17:34,151 INFO L93 Difference]: Finished difference Result 157047 states and 977779 transitions. [2022-01-18 14:17:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 14:17:34,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:17:34,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:17:35,889 INFO L225 Difference]: With dead ends: 157047 [2022-01-18 14:17:35,890 INFO L226 Difference]: Without dead ends: 157047 [2022-01-18 14:17:35,890 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 [2022-01-18 14:17:35,894 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 83 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:17:35,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 31 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:17:36,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157047 states. [2022-01-18 14:17:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157047 to 157047. [2022-01-18 14:17:42,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157047 states, 157046 states have (on average 6.22606752161787) internal successors, (977779), 157046 states have internal predecessors, (977779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:17:43,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157047 states to 157047 states and 977779 transitions. [2022-01-18 14:17:43,885 INFO L78 Accepts]: Start accepts. Automaton has 157047 states and 977779 transitions. Word has length 37 [2022-01-18 14:17:43,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:17:43,885 INFO L470 AbstractCegarLoop]: Abstraction has 157047 states and 977779 transitions. [2022-01-18 14:17:43,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:17:43,885 INFO L276 IsEmpty]: Start isEmpty. Operand 157047 states and 977779 transitions. [2022-01-18 14:17:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:17:44,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:17:44,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:17:44,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 14:17:44,696 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:17:44,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:17:44,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1977349508, now seen corresponding path program 1 times [2022-01-18 14:17:44,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:17:44,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725185366] [2022-01-18 14:17:44,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:17:44,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:17:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:17:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:17:45,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:17:45,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725185366] [2022-01-18 14:17:45,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725185366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:17:45,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:17:45,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:17:45,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315499853] [2022-01-18 14:17:45,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:17:45,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:17:45,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:17:45,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:17:45,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:17:45,435 INFO L87 Difference]: Start difference. First operand 157047 states and 977779 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:17:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:17:54,263 INFO L93 Difference]: Finished difference Result 456238 states and 2682977 transitions. [2022-01-18 14:17:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:17:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:17:54,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:17:59,499 INFO L225 Difference]: With dead ends: 456238 [2022-01-18 14:17:59,499 INFO L226 Difference]: Without dead ends: 441370 [2022-01-18 14:17:59,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:17:59,500 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 1207 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 14:17:59,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 354 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 14:18:01,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441370 states. [2022-01-18 14:18:10,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441370 to 159131. [2022-01-18 14:18:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159131 states, 159130 states have (on average 6.2127757179664425) internal successors, (988639), 159130 states have internal predecessors, (988639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:18:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159131 states to 159131 states and 988639 transitions. [2022-01-18 14:18:12,756 INFO L78 Accepts]: Start accepts. Automaton has 159131 states and 988639 transitions. Word has length 37 [2022-01-18 14:18:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:18:12,756 INFO L470 AbstractCegarLoop]: Abstraction has 159131 states and 988639 transitions. [2022-01-18 14:18:12,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:18:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 159131 states and 988639 transitions. [2022-01-18 14:18:13,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:18:13,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:18:13,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:18:13,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 14:18:13,345 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:18:13,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:18:13,346 INFO L85 PathProgramCache]: Analyzing trace with hash -313224248, now seen corresponding path program 2 times [2022-01-18 14:18:13,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:18:13,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988234429] [2022-01-18 14:18:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:18:13,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:18:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:18:13,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:18:13,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:18:13,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988234429] [2022-01-18 14:18:13,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988234429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:18:13,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:18:13,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:18:13,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835584116] [2022-01-18 14:18:13,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:18:13,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:18:13,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:18:13,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:18:13,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:18:13,697 INFO L87 Difference]: Start difference. First operand 159131 states and 988639 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:18:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:18:21,632 INFO L93 Difference]: Finished difference Result 455982 states and 2680614 transitions. [2022-01-18 14:18:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:18:21,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:18:21,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:18:26,152 INFO L225 Difference]: With dead ends: 455982 [2022-01-18 14:18:26,152 INFO L226 Difference]: Without dead ends: 440159 [2022-01-18 14:18:26,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:18:26,153 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 1301 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 14:18:26,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 372 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 14:18:27,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440159 states. [2022-01-18 14:18:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440159 to 157920. [2022-01-18 14:18:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157920 states, 157919 states have (on average 6.220942381853988) internal successors, (982405), 157919 states have internal predecessors, (982405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:18:38,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157920 states to 157920 states and 982405 transitions. [2022-01-18 14:18:38,861 INFO L78 Accepts]: Start accepts. Automaton has 157920 states and 982405 transitions. Word has length 37 [2022-01-18 14:18:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:18:38,864 INFO L470 AbstractCegarLoop]: Abstraction has 157920 states and 982405 transitions. [2022-01-18 14:18:38,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:18:38,869 INFO L276 IsEmpty]: Start isEmpty. Operand 157920 states and 982405 transitions. [2022-01-18 14:18:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:18:39,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:18:39,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:18:39,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 14:18:39,449 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:18:39,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:18:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1155481320, now seen corresponding path program 3 times [2022-01-18 14:18:39,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:18:39,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106268322] [2022-01-18 14:18:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:18:39,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:18:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:18:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:18:39,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:18:39,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106268322] [2022-01-18 14:18:39,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106268322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:18:39,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:18:39,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:18:39,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474521670] [2022-01-18 14:18:39,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:18:39,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:18:39,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:18:39,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:18:39,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:18:39,783 INFO L87 Difference]: Start difference. First operand 157920 states and 982405 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:18:46,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:18:46,529 INFO L93 Difference]: Finished difference Result 456110 states and 2682000 transitions. [2022-01-18 14:18:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:18:46,529 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:18:46,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:18:51,000 INFO L225 Difference]: With dead ends: 456110 [2022-01-18 14:18:51,000 INFO L226 Difference]: Without dead ends: 441242 [2022-01-18 14:18:51,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:18:51,016 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 965 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 14:18:51,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 424 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 14:18:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441242 states. [2022-01-18 14:19:02,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441242 to 159003. [2022-01-18 14:19:03,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159003 states, 159002 states have (on average 6.21163255808103) internal successors, (987662), 159002 states have internal predecessors, (987662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:04,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159003 states to 159003 states and 987662 transitions. [2022-01-18 14:19:04,906 INFO L78 Accepts]: Start accepts. Automaton has 159003 states and 987662 transitions. Word has length 37 [2022-01-18 14:19:04,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:19:04,907 INFO L470 AbstractCegarLoop]: Abstraction has 159003 states and 987662 transitions. [2022-01-18 14:19:04,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:04,907 INFO L276 IsEmpty]: Start isEmpty. Operand 159003 states and 987662 transitions. [2022-01-18 14:19:05,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:19:05,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:19:05,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:19:05,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 14:19:05,739 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:19:05,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:19:05,739 INFO L85 PathProgramCache]: Analyzing trace with hash 38669896, now seen corresponding path program 1 times [2022-01-18 14:19:05,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:19:05,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404503345] [2022-01-18 14:19:05,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:19:05,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:19:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:19:05,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:19:05,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:19:05,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404503345] [2022-01-18 14:19:05,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404503345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:19:05,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:19:05,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:19:05,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432981553] [2022-01-18 14:19:05,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:19:05,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 14:19:05,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:19:05,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 14:19:05,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:19:05,793 INFO L87 Difference]: Start difference. First operand 159003 states and 987662 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:07,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:19:07,432 INFO L93 Difference]: Finished difference Result 114224 states and 703963 transitions. [2022-01-18 14:19:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 14:19:07,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:19:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:19:08,825 INFO L225 Difference]: With dead ends: 114224 [2022-01-18 14:19:08,825 INFO L226 Difference]: Without dead ends: 114224 [2022-01-18 14:19:08,826 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 [2022-01-18 14:19:08,828 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 72 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 14:19:08,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 47 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 14:19:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114224 states. [2022-01-18 14:19:13,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114224 to 114224. [2022-01-18 14:19:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114224 states, 114223 states have (on average 6.163058228202726) internal successors, (703963), 114223 states have internal predecessors, (703963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:15,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114224 states to 114224 states and 703963 transitions. [2022-01-18 14:19:15,095 INFO L78 Accepts]: Start accepts. Automaton has 114224 states and 703963 transitions. Word has length 37 [2022-01-18 14:19:15,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:19:15,097 INFO L470 AbstractCegarLoop]: Abstraction has 114224 states and 703963 transitions. [2022-01-18 14:19:15,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:15,097 INFO L276 IsEmpty]: Start isEmpty. Operand 114224 states and 703963 transitions. [2022-01-18 14:19:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:19:15,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:19:15,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:19:15,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 14:19:15,593 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:19:15,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:19:15,606 INFO L85 PathProgramCache]: Analyzing trace with hash -290244448, now seen corresponding path program 4 times [2022-01-18 14:19:15,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:19:15,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600842649] [2022-01-18 14:19:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:19:15,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:19:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:19:16,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:19:16,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:19:16,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600842649] [2022-01-18 14:19:16,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600842649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:19:16,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:19:16,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:19:16,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854699576] [2022-01-18 14:19:16,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:19:16,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:19:16,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:19:16,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:19:16,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:19:16,009 INFO L87 Difference]: Start difference. First operand 114224 states and 703963 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:20,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:19:20,795 INFO L93 Difference]: Finished difference Result 316061 states and 1838661 transitions. [2022-01-18 14:19:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:19:20,795 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:19:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:19:24,392 INFO L225 Difference]: With dead ends: 316061 [2022-01-18 14:19:24,392 INFO L226 Difference]: Without dead ends: 306833 [2022-01-18 14:19:24,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:19:24,393 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 964 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 14:19:24,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [964 Valid, 400 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 14:19:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306833 states. [2022-01-18 14:19:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306833 to 113550. [2022-01-18 14:19:33,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113550 states, 113549 states have (on average 6.168535169838572) internal successors, (700431), 113549 states have internal predecessors, (700431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:34,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113550 states to 113550 states and 700431 transitions. [2022-01-18 14:19:34,176 INFO L78 Accepts]: Start accepts. Automaton has 113550 states and 700431 transitions. Word has length 37 [2022-01-18 14:19:34,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:19:34,176 INFO L470 AbstractCegarLoop]: Abstraction has 113550 states and 700431 transitions. [2022-01-18 14:19:34,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:34,176 INFO L276 IsEmpty]: Start isEmpty. Operand 113550 states and 700431 transitions. [2022-01-18 14:19:35,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:19:35,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:19:35,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:19:35,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 14:19:35,119 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:19:35,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:19:35,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1659390432, now seen corresponding path program 5 times [2022-01-18 14:19:35,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:19:35,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605271256] [2022-01-18 14:19:35,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:19:35,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:19:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:19:35,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:19:35,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:19:35,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605271256] [2022-01-18 14:19:35,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605271256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:19:35,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:19:35,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:19:35,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190512263] [2022-01-18 14:19:35,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:19:35,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:19:35,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:19:35,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:19:35,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:19:35,435 INFO L87 Difference]: Start difference. First operand 113550 states and 700431 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:39,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:19:39,649 INFO L93 Difference]: Finished difference Result 318890 states and 1855649 transitions. [2022-01-18 14:19:39,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:19:39,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:19:39,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:19:42,372 INFO L225 Difference]: With dead ends: 318890 [2022-01-18 14:19:42,372 INFO L226 Difference]: Without dead ends: 308934 [2022-01-18 14:19:42,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:19:42,374 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 1063 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 14:19:42,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 375 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 14:19:43,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308934 states. [2022-01-18 14:19:50,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308934 to 114505. [2022-01-18 14:19:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114505 states, 114504 states have (on average 6.157968280584084) internal successors, (705112), 114504 states have internal predecessors, (705112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:51,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114505 states to 114505 states and 705112 transitions. [2022-01-18 14:19:51,569 INFO L78 Accepts]: Start accepts. Automaton has 114505 states and 705112 transitions. Word has length 37 [2022-01-18 14:19:51,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:19:51,569 INFO L470 AbstractCegarLoop]: Abstraction has 114505 states and 705112 transitions. [2022-01-18 14:19:51,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:51,569 INFO L276 IsEmpty]: Start isEmpty. Operand 114505 states and 705112 transitions. [2022-01-18 14:19:51,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:19:51,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:19:51,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:19:51,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 14:19:51,956 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:19:51,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:19:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1553710084, now seen corresponding path program 6 times [2022-01-18 14:19:51,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:19:51,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545252793] [2022-01-18 14:19:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:19:51,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:19:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:19:52,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:19:52,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:19:52,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545252793] [2022-01-18 14:19:52,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545252793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:19:52,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:19:52,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:19:52,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294171562] [2022-01-18 14:19:52,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:19:52,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:19:52,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:19:52,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:19:52,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:19:52,276 INFO L87 Difference]: Start difference. First operand 114505 states and 705112 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:19:56,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:19:56,930 INFO L93 Difference]: Finished difference Result 317488 states and 1846612 transitions. [2022-01-18 14:19:56,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:19:56,931 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:19:56,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:19:59,555 INFO L225 Difference]: With dead ends: 317488 [2022-01-18 14:19:59,555 INFO L226 Difference]: Without dead ends: 307514 [2022-01-18 14:19:59,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:19:59,556 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 1180 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:19:59,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 355 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 14:20:00,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307514 states. [2022-01-18 14:20:08,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307514 to 113085. [2022-01-18 14:20:08,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113085 states, 113084 states have (on average 6.1751883555587) internal successors, (698315), 113084 states have internal predecessors, (698315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:09,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113085 states to 113085 states and 698315 transitions. [2022-01-18 14:20:09,935 INFO L78 Accepts]: Start accepts. Automaton has 113085 states and 698315 transitions. Word has length 37 [2022-01-18 14:20:09,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:20:09,951 INFO L470 AbstractCegarLoop]: Abstraction has 113085 states and 698315 transitions. [2022-01-18 14:20:09,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:09,951 INFO L276 IsEmpty]: Start isEmpty. Operand 113085 states and 698315 transitions. [2022-01-18 14:20:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:20:10,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:20:10,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:20:10,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 14:20:10,373 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:20:10,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:20:10,373 INFO L85 PathProgramCache]: Analyzing trace with hash 432315782, now seen corresponding path program 7 times [2022-01-18 14:20:10,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:20:10,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340121426] [2022-01-18 14:20:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:20:10,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:20:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:20:10,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:20:10,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:20:10,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340121426] [2022-01-18 14:20:10,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340121426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:20:10,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:20:10,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:20:10,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227113641] [2022-01-18 14:20:10,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:20:10,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:20:10,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:20:10,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:20:10,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:20:10,661 INFO L87 Difference]: Start difference. First operand 113085 states and 698315 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:15,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:20:15,366 INFO L93 Difference]: Finished difference Result 318192 states and 1851714 transitions. [2022-01-18 14:20:15,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:20:15,366 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:20:15,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:20:18,074 INFO L225 Difference]: With dead ends: 318192 [2022-01-18 14:20:18,075 INFO L226 Difference]: Without dead ends: 309382 [2022-01-18 14:20:18,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:20:18,075 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 1202 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 14:20:18,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1202 Valid, 364 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 14:20:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309382 states. [2022-01-18 14:20:25,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309382 to 114697. [2022-01-18 14:20:25,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114697 states, 114696 states have (on average 6.160380484062217) internal successors, (706571), 114696 states have internal predecessors, (706571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114697 states to 114697 states and 706571 transitions. [2022-01-18 14:20:26,065 INFO L78 Accepts]: Start accepts. Automaton has 114697 states and 706571 transitions. Word has length 37 [2022-01-18 14:20:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:20:26,066 INFO L470 AbstractCegarLoop]: Abstraction has 114697 states and 706571 transitions. [2022-01-18 14:20:26,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 114697 states and 706571 transitions. [2022-01-18 14:20:27,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:20:27,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:20:27,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:20:27,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 14:20:27,018 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:20:27,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:20:27,018 INFO L85 PathProgramCache]: Analyzing trace with hash 2096441042, now seen corresponding path program 8 times [2022-01-18 14:20:27,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:20:27,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754379683] [2022-01-18 14:20:27,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:20:27,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:20:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:20:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:20:27,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:20:27,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754379683] [2022-01-18 14:20:27,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754379683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:20:27,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:20:27,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:20:27,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068498684] [2022-01-18 14:20:27,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:20:27,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:20:27,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:20:27,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:20:27,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:20:27,372 INFO L87 Difference]: Start difference. First operand 114697 states and 706571 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:31,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:20:31,572 INFO L93 Difference]: Finished difference Result 319338 states and 1857433 transitions. [2022-01-18 14:20:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:20:31,572 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:20:31,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:20:34,149 INFO L225 Difference]: With dead ends: 319338 [2022-01-18 14:20:34,149 INFO L226 Difference]: Without dead ends: 308171 [2022-01-18 14:20:34,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:20:34,150 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 1010 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 14:20:34,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 405 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 14:20:35,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308171 states. [2022-01-18 14:20:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308171 to 113486. [2022-01-18 14:20:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113486 states, 113485 states have (on average 6.171185619244834) internal successors, (700337), 113485 states have internal predecessors, (700337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:44,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113486 states to 113486 states and 700337 transitions. [2022-01-18 14:20:44,172 INFO L78 Accepts]: Start accepts. Automaton has 113486 states and 700337 transitions. Word has length 37 [2022-01-18 14:20:44,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:20:44,172 INFO L470 AbstractCegarLoop]: Abstraction has 113486 states and 700337 transitions. [2022-01-18 14:20:44,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand 113486 states and 700337 transitions. [2022-01-18 14:20:44,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:20:44,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:20:44,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:20:44,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 14:20:44,647 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:20:44,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:20:44,648 INFO L85 PathProgramCache]: Analyzing trace with hash 811272062, now seen corresponding path program 1 times [2022-01-18 14:20:44,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:20:44,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743364661] [2022-01-18 14:20:44,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:20:44,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:20:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:20:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:20:44,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:20:44,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743364661] [2022-01-18 14:20:44,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743364661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:20:44,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:20:44,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:20:44,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500237412] [2022-01-18 14:20:44,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:20:44,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 14:20:44,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:20:44,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 14:20:44,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:20:44,660 INFO L87 Difference]: Start difference. First operand 113486 states and 700337 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:46,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:20:46,068 INFO L93 Difference]: Finished difference Result 82510 states and 506128 transitions. [2022-01-18 14:20:46,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 14:20:46,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:20:46,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:20:46,585 INFO L225 Difference]: With dead ends: 82510 [2022-01-18 14:20:46,585 INFO L226 Difference]: Without dead ends: 82510 [2022-01-18 14:20:46,585 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 [2022-01-18 14:20:46,586 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 69 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:20:46,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 43 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:20:47,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82510 states. [2022-01-18 14:20:49,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82510 to 82510. [2022-01-18 14:20:49,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82510 states, 82509 states have (on average 6.134215661321795) internal successors, (506128), 82509 states have internal predecessors, (506128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82510 states to 82510 states and 506128 transitions. [2022-01-18 14:20:50,659 INFO L78 Accepts]: Start accepts. Automaton has 82510 states and 506128 transitions. Word has length 37 [2022-01-18 14:20:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:20:50,660 INFO L470 AbstractCegarLoop]: Abstraction has 82510 states and 506128 transitions. [2022-01-18 14:20:50,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:50,661 INFO L276 IsEmpty]: Start isEmpty. Operand 82510 states and 506128 transitions. [2022-01-18 14:20:50,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:20:50,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:20:50,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:20:50,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 14:20:50,941 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:20:50,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:20:50,941 INFO L85 PathProgramCache]: Analyzing trace with hash 816643430, now seen corresponding path program 9 times [2022-01-18 14:20:50,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:20:50,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482031548] [2022-01-18 14:20:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:20:50,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:20:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:20:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:20:51,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:20:51,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482031548] [2022-01-18 14:20:51,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482031548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:20:51,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:20:51,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:20:51,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481729696] [2022-01-18 14:20:51,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:20:51,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:20:51,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:20:51,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:20:51,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:20:51,233 INFO L87 Difference]: Start difference. First operand 82510 states and 506128 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:20:54,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:20:54,840 INFO L93 Difference]: Finished difference Result 219894 states and 1270463 transitions. [2022-01-18 14:20:54,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:20:54,840 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:20:54,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:20:56,723 INFO L225 Difference]: With dead ends: 219894 [2022-01-18 14:20:56,723 INFO L226 Difference]: Without dead ends: 214676 [2022-01-18 14:20:56,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:20:56,724 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 947 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:20:56,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 405 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:20:57,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214676 states. [2022-01-18 14:21:00,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214676 to 82954. [2022-01-18 14:21:01,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82954 states, 82953 states have (on average 6.126360710281726) internal successors, (508200), 82953 states have internal predecessors, (508200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:02,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82954 states to 82954 states and 508200 transitions. [2022-01-18 14:21:02,059 INFO L78 Accepts]: Start accepts. Automaton has 82954 states and 508200 transitions. Word has length 37 [2022-01-18 14:21:02,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:21:02,059 INFO L470 AbstractCegarLoop]: Abstraction has 82954 states and 508200 transitions. [2022-01-18 14:21:02,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:02,059 INFO L276 IsEmpty]: Start isEmpty. Operand 82954 states and 508200 transitions. [2022-01-18 14:21:02,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:21:02,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:21:02,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:21:02,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 14:21:02,381 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:21:02,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:21:02,382 INFO L85 PathProgramCache]: Analyzing trace with hash 624551312, now seen corresponding path program 10 times [2022-01-18 14:21:02,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:21:02,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285767985] [2022-01-18 14:21:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:21:02,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:21:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:21:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:21:02,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:21:02,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285767985] [2022-01-18 14:21:02,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285767985] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:21:02,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:21:02,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:21:02,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021490506] [2022-01-18 14:21:02,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:21:02,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:21:02,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:21:02,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:21:02,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:21:02,680 INFO L87 Difference]: Start difference. First operand 82954 states and 508200 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:21:06,223 INFO L93 Difference]: Finished difference Result 219638 states and 1268739 transitions. [2022-01-18 14:21:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:21:06,224 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:21:06,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:21:08,093 INFO L225 Difference]: With dead ends: 219638 [2022-01-18 14:21:08,093 INFO L226 Difference]: Without dead ends: 214232 [2022-01-18 14:21:08,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:21:08,094 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 979 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:21:08,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 373 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:21:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214232 states. [2022-01-18 14:21:12,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214232 to 82510. [2022-01-18 14:21:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82510 states, 82509 states have (on average 6.131525045752585) internal successors, (505906), 82509 states have internal predecessors, (505906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82510 states to 82510 states and 505906 transitions. [2022-01-18 14:21:13,596 INFO L78 Accepts]: Start accepts. Automaton has 82510 states and 505906 transitions. Word has length 37 [2022-01-18 14:21:13,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:21:13,597 INFO L470 AbstractCegarLoop]: Abstraction has 82510 states and 505906 transitions. [2022-01-18 14:21:13,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:13,597 INFO L276 IsEmpty]: Start isEmpty. Operand 82510 states and 505906 transitions. [2022-01-18 14:21:13,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:21:13,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:21:13,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:21:13,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 14:21:13,870 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:21:13,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:21:13,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1406825906, now seen corresponding path program 11 times [2022-01-18 14:21:13,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:21:13,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955518732] [2022-01-18 14:21:13,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:21:13,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:21:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:21:14,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:21:14,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:21:14,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955518732] [2022-01-18 14:21:14,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955518732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:21:14,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:21:14,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:21:14,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925072220] [2022-01-18 14:21:14,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:21:14,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:21:14,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:21:14,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:21:14,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:21:14,157 INFO L87 Difference]: Start difference. First operand 82510 states and 505906 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:21:18,060 INFO L93 Difference]: Finished difference Result 221145 states and 1277473 transitions. [2022-01-18 14:21:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:21:18,060 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:21:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:21:20,629 INFO L225 Difference]: With dead ends: 221145 [2022-01-18 14:21:20,629 INFO L226 Difference]: Without dead ends: 215353 [2022-01-18 14:21:20,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:21:20,630 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 1012 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 14:21:20,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1012 Valid, 430 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 14:21:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215353 states. [2022-01-18 14:21:25,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215353 to 83057. [2022-01-18 14:21:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83057 states, 83056 states have (on average 6.122700346753997) internal successors, (508527), 83056 states have internal predecessors, (508527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83057 states to 83057 states and 508527 transitions. [2022-01-18 14:21:26,209 INFO L78 Accepts]: Start accepts. Automaton has 83057 states and 508527 transitions. Word has length 37 [2022-01-18 14:21:26,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:21:26,209 INFO L470 AbstractCegarLoop]: Abstraction has 83057 states and 508527 transitions. [2022-01-18 14:21:26,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:26,210 INFO L276 IsEmpty]: Start isEmpty. Operand 83057 states and 508527 transitions. [2022-01-18 14:21:26,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:21:26,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:21:26,465 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, 1, 1, 1, 1] [2022-01-18 14:21:26,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 14:21:26,465 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:21:26,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:21:26,466 INFO L85 PathProgramCache]: Analyzing trace with hash 55307908, now seen corresponding path program 12 times [2022-01-18 14:21:26,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:21:26,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925785967] [2022-01-18 14:21:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:21:26,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:21:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:21:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:21:26,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:21:26,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925785967] [2022-01-18 14:21:26,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925785967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:21:26,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:21:26,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:21:26,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022382270] [2022-01-18 14:21:26,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:21:26,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:21:26,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:21:26,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:21:26,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:21:26,763 INFO L87 Difference]: Start difference. First operand 83057 states and 508527 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:21:30,277 INFO L93 Difference]: Finished difference Result 220315 states and 1272356 transitions. [2022-01-18 14:21:30,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:21:30,277 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:21:30,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:21:32,113 INFO L225 Difference]: With dead ends: 220315 [2022-01-18 14:21:32,113 INFO L226 Difference]: Without dead ends: 214520 [2022-01-18 14:21:32,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:21:32,114 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 1190 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 14:21:32,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 401 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 14:21:32,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214520 states. [2022-01-18 14:21:36,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214520 to 82224. [2022-01-18 14:21:37,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82224 states, 82223 states have (on average 6.136750057769723) internal successors, (504582), 82223 states have internal predecessors, (504582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82224 states to 82224 states and 504582 transitions. [2022-01-18 14:21:37,538 INFO L78 Accepts]: Start accepts. Automaton has 82224 states and 504582 transitions. Word has length 37 [2022-01-18 14:21:37,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:21:37,538 INFO L470 AbstractCegarLoop]: Abstraction has 82224 states and 504582 transitions. [2022-01-18 14:21:37,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:37,539 INFO L276 IsEmpty]: Start isEmpty. Operand 82224 states and 504582 transitions. [2022-01-18 14:21:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:21:37,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:21:37,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:21:37,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 14:21:37,794 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:21:37,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:21:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1060404966, now seen corresponding path program 13 times [2022-01-18 14:21:37,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:21:37,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944399083] [2022-01-18 14:21:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:21:37,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:21:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:21:38,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:21:38,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:21:38,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944399083] [2022-01-18 14:21:38,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944399083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:21:38,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:21:38,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:21:38,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746332281] [2022-01-18 14:21:38,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:21:38,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:21:38,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:21:38,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:21:38,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:21:38,056 INFO L87 Difference]: Start difference. First operand 82224 states and 504582 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:21:41,372 INFO L93 Difference]: Finished difference Result 220732 states and 1275543 transitions. [2022-01-18 14:21:41,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:21:41,372 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:21:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:21:43,263 INFO L225 Difference]: With dead ends: 220732 [2022-01-18 14:21:43,264 INFO L226 Difference]: Without dead ends: 215514 [2022-01-18 14:21:43,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:21:43,264 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 1000 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:21:43,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1000 Valid, 369 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:21:43,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215514 states. [2022-01-18 14:21:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215514 to 83120. [2022-01-18 14:21:48,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83120 states, 83119 states have (on average 6.125506803498598) internal successors, (509146), 83119 states have internal predecessors, (509146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:48,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83120 states to 83120 states and 509146 transitions. [2022-01-18 14:21:48,676 INFO L78 Accepts]: Start accepts. Automaton has 83120 states and 509146 transitions. Word has length 37 [2022-01-18 14:21:48,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:21:48,676 INFO L470 AbstractCegarLoop]: Abstraction has 83120 states and 509146 transitions. [2022-01-18 14:21:48,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:48,676 INFO L276 IsEmpty]: Start isEmpty. Operand 83120 states and 509146 transitions. [2022-01-18 14:21:48,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:21:48,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:21:48,929 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, 1, 1, 1, 1] [2022-01-18 14:21:48,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 14:21:48,929 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:21:48,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:21:48,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1925641838, now seen corresponding path program 14 times [2022-01-18 14:21:48,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:21:48,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343791357] [2022-01-18 14:21:48,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:21:48,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:21:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:21:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:21:49,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:21:49,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343791357] [2022-01-18 14:21:49,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343791357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:21:49,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:21:49,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:21:49,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015232837] [2022-01-18 14:21:49,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:21:49,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:21:49,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:21:49,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:21:49,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:21:49,196 INFO L87 Difference]: Start difference. First operand 83120 states and 509146 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:21:52,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:21:52,603 INFO L93 Difference]: Finished difference Result 221292 states and 1278117 transitions. [2022-01-18 14:21:52,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:21:52,604 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:21:52,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:21:54,511 INFO L225 Difference]: With dead ends: 221292 [2022-01-18 14:21:54,511 INFO L226 Difference]: Without dead ends: 214840 [2022-01-18 14:21:54,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:21:54,512 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 960 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:21:54,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 385 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:21:54,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214840 states. [2022-01-18 14:21:59,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214840 to 82446. [2022-01-18 14:21:59,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82446 states, 82445 states have (on average 6.1341379101219) internal successors, (505729), 82445 states have internal predecessors, (505729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:00,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82446 states to 82446 states and 505729 transitions. [2022-01-18 14:22:00,117 INFO L78 Accepts]: Start accepts. Automaton has 82446 states and 505729 transitions. Word has length 37 [2022-01-18 14:22:00,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:22:00,117 INFO L470 AbstractCegarLoop]: Abstraction has 82446 states and 505729 transitions. [2022-01-18 14:22:00,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:00,117 INFO L276 IsEmpty]: Start isEmpty. Operand 82446 states and 505729 transitions. [2022-01-18 14:22:00,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:22:00,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:22:00,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:22:00,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 14:22:00,987 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:22:00,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:22:00,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1544419590, now seen corresponding path program 15 times [2022-01-18 14:22:00,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:22:00,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858020041] [2022-01-18 14:22:00,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:22:00,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:22:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:22:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:22:01,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:22:01,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858020041] [2022-01-18 14:22:01,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858020041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:22:01,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:22:01,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:22:01,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077108644] [2022-01-18 14:22:01,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:22:01,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:22:01,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:22:01,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:22:01,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:22:01,297 INFO L87 Difference]: Start difference. First operand 82446 states and 505729 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:04,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:22:04,685 INFO L93 Difference]: Finished difference Result 219686 states and 1269440 transitions. [2022-01-18 14:22:04,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:22:04,685 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:22:04,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:22:07,173 INFO L225 Difference]: With dead ends: 219686 [2022-01-18 14:22:07,174 INFO L226 Difference]: Without dead ends: 214468 [2022-01-18 14:22:07,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:22:07,174 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 979 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 14:22:07,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 419 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 14:22:08,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214468 states. [2022-01-18 14:22:12,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214468 to 82890. [2022-01-18 14:22:12,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82890 states, 82889 states have (on average 6.126277310620227) internal successors, (507801), 82889 states have internal predecessors, (507801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:13,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82890 states to 82890 states and 507801 transitions. [2022-01-18 14:22:13,745 INFO L78 Accepts]: Start accepts. Automaton has 82890 states and 507801 transitions. Word has length 37 [2022-01-18 14:22:13,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:22:13,745 INFO L470 AbstractCegarLoop]: Abstraction has 82890 states and 507801 transitions. [2022-01-18 14:22:13,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:13,745 INFO L276 IsEmpty]: Start isEmpty. Operand 82890 states and 507801 transitions. [2022-01-18 14:22:14,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:22:14,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:22:14,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:22:14,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 14:22:14,078 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:22:14,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:22:14,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1705613938, now seen corresponding path program 16 times [2022-01-18 14:22:14,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:22:14,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442363655] [2022-01-18 14:22:14,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:22:14,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:22:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:22:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:22:14,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:22:14,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442363655] [2022-01-18 14:22:14,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442363655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:22:14,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:22:14,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:22:14,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187979375] [2022-01-18 14:22:14,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:22:14,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:22:14,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:22:14,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:22:14,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:22:14,378 INFO L87 Difference]: Start difference. First operand 82890 states and 507801 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:22:18,088 INFO L93 Difference]: Finished difference Result 219430 states and 1267716 transitions. [2022-01-18 14:22:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:22:18,088 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:22:18,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:22:19,907 INFO L225 Difference]: With dead ends: 219430 [2022-01-18 14:22:19,907 INFO L226 Difference]: Without dead ends: 214024 [2022-01-18 14:22:19,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:22:19,908 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 984 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 14:22:19,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 497 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 14:22:20,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214024 states. [2022-01-18 14:22:24,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214024 to 82446. [2022-01-18 14:22:24,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82446 states, 82445 states have (on average 6.131445205894839) internal successors, (505507), 82445 states have internal predecessors, (505507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:25,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82446 states to 82446 states and 505507 transitions. [2022-01-18 14:22:25,383 INFO L78 Accepts]: Start accepts. Automaton has 82446 states and 505507 transitions. Word has length 37 [2022-01-18 14:22:25,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:22:25,383 INFO L470 AbstractCegarLoop]: Abstraction has 82446 states and 505507 transitions. [2022-01-18 14:22:25,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:25,384 INFO L276 IsEmpty]: Start isEmpty. Operand 82446 states and 505507 transitions. [2022-01-18 14:22:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:22:25,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:22:25,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:22:25,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 14:22:25,684 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:22:25,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:22:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2046730608, now seen corresponding path program 17 times [2022-01-18 14:22:25,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:22:25,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535006592] [2022-01-18 14:22:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:22:25,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:22:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:22:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:22:25,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:22:25,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535006592] [2022-01-18 14:22:25,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535006592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:22:25,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:22:25,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:22:25,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553612998] [2022-01-18 14:22:25,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:22:25,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:22:25,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:22:25,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:22:25,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:22:25,950 INFO L87 Difference]: Start difference. First operand 82446 states and 505507 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:29,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:22:29,479 INFO L93 Difference]: Finished difference Result 220908 states and 1276363 transitions. [2022-01-18 14:22:29,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:22:29,479 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:22:29,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:22:31,384 INFO L225 Difference]: With dead ends: 220908 [2022-01-18 14:22:31,384 INFO L226 Difference]: Without dead ends: 215130 [2022-01-18 14:22:31,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:22:31,385 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 1085 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:22:31,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 372 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:22:31,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215130 states. [2022-01-18 14:22:35,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215130 to 82992. [2022-01-18 14:22:35,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82992 states, 82991 states have (on average 6.122663903314817) internal successors, (508126), 82991 states have internal predecessors, (508126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:36,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82992 states to 82992 states and 508126 transitions. [2022-01-18 14:22:36,946 INFO L78 Accepts]: Start accepts. Automaton has 82992 states and 508126 transitions. Word has length 37 [2022-01-18 14:22:36,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:22:36,947 INFO L470 AbstractCegarLoop]: Abstraction has 82992 states and 508126 transitions. [2022-01-18 14:22:36,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:36,947 INFO L276 IsEmpty]: Start isEmpty. Operand 82992 states and 508126 transitions. [2022-01-18 14:22:37,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:22:37,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:22:37,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:22:37,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 14:22:37,213 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:22:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:22:37,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2098603100, now seen corresponding path program 18 times [2022-01-18 14:22:37,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:22:37,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480798148] [2022-01-18 14:22:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:22:37,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:22:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:22:37,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:22:37,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:22:37,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480798148] [2022-01-18 14:22:37,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480798148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:22:37,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:22:37,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:22:37,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367772097] [2022-01-18 14:22:37,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:22:37,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:22:37,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:22:37,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:22:37,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:22:37,481 INFO L87 Difference]: Start difference. First operand 82992 states and 508126 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:41,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:22:41,038 INFO L93 Difference]: Finished difference Result 220092 states and 1271289 transitions. [2022-01-18 14:22:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:22:41,039 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:22:41,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:22:42,881 INFO L225 Difference]: With dead ends: 220092 [2022-01-18 14:22:42,881 INFO L226 Difference]: Without dead ends: 214362 [2022-01-18 14:22:42,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:22:42,882 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 866 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 14:22:42,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [866 Valid, 397 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 14:22:43,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214362 states. [2022-01-18 14:22:47,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214362 to 82224. [2022-01-18 14:22:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82224 states, 82223 states have (on average 6.135400070539873) internal successors, (504471), 82223 states have internal predecessors, (504471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:48,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82224 states to 82224 states and 504471 transitions. [2022-01-18 14:22:48,218 INFO L78 Accepts]: Start accepts. Automaton has 82224 states and 504471 transitions. Word has length 37 [2022-01-18 14:22:48,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:22:48,218 INFO L470 AbstractCegarLoop]: Abstraction has 82224 states and 504471 transitions. [2022-01-18 14:22:48,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:48,218 INFO L276 IsEmpty]: Start isEmpty. Operand 82224 states and 504471 transitions. [2022-01-18 14:22:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:22:48,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:22:48,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:22:48,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 14:22:48,472 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:22:48,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:22:48,473 INFO L85 PathProgramCache]: Analyzing trace with hash 362716850, now seen corresponding path program 19 times [2022-01-18 14:22:48,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:22:48,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876321650] [2022-01-18 14:22:48,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:22:48,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:22:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:22:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:22:48,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:22:48,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876321650] [2022-01-18 14:22:48,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876321650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:22:48,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:22:48,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:22:48,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257721468] [2022-01-18 14:22:48,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:22:48,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:22:48,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:22:48,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:22:48,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:22:48,736 INFO L87 Difference]: Start difference. First operand 82224 states and 504471 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:22:52,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:22:52,714 INFO L93 Difference]: Finished difference Result 223170 states and 1289838 transitions. [2022-01-18 14:22:52,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:22:52,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:22:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:22:55,011 INFO L225 Difference]: With dead ends: 223170 [2022-01-18 14:22:55,011 INFO L226 Difference]: Without dead ends: 217378 [2022-01-18 14:22:55,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:22:55,012 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 1249 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:22:55,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 377 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 14:22:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217378 states. [2022-01-18 14:23:00,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217378 to 83452. [2022-01-18 14:23:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83452 states, 83451 states have (on average 6.121808007093983) internal successors, (510871), 83451 states have internal predecessors, (510871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:01,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83452 states to 83452 states and 510871 transitions. [2022-01-18 14:23:01,583 INFO L78 Accepts]: Start accepts. Automaton has 83452 states and 510871 transitions. Word has length 37 [2022-01-18 14:23:01,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:23:01,583 INFO L470 AbstractCegarLoop]: Abstraction has 83452 states and 510871 transitions. [2022-01-18 14:23:01,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 83452 states and 510871 transitions. [2022-01-18 14:23:01,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:23:01,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:23:01,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:23:01,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 14:23:01,939 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:23:01,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:23:01,939 INFO L85 PathProgramCache]: Analyzing trace with hash -719149930, now seen corresponding path program 20 times [2022-01-18 14:23:01,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:23:01,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043588044] [2022-01-18 14:23:01,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:23:01,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:23:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:23:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:23:02,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:23:02,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043588044] [2022-01-18 14:23:02,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043588044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:23:02,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:23:02,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:23:02,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635407676] [2022-01-18 14:23:02,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:23:02,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:23:02,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:23:02,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:23:02,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:23:02,212 INFO L87 Difference]: Start difference. First operand 83452 states and 510871 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:05,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:23:05,861 INFO L93 Difference]: Finished difference Result 223156 states and 1288841 transitions. [2022-01-18 14:23:05,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:23:05,862 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:23:05,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:23:07,707 INFO L225 Difference]: With dead ends: 223156 [2022-01-18 14:23:07,707 INFO L226 Difference]: Without dead ends: 216423 [2022-01-18 14:23:07,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:23:07,708 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 850 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:23:07,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 421 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:23:08,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216423 states. [2022-01-18 14:23:12,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216423 to 82497. [2022-01-18 14:23:12,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82497 states, 82496 states have (on average 6.132624612102405) internal successors, (505917), 82496 states have internal predecessors, (505917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:13,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82497 states to 82497 states and 505917 transitions. [2022-01-18 14:23:13,303 INFO L78 Accepts]: Start accepts. Automaton has 82497 states and 505917 transitions. Word has length 37 [2022-01-18 14:23:13,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:23:13,303 INFO L470 AbstractCegarLoop]: Abstraction has 82497 states and 505917 transitions. [2022-01-18 14:23:13,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:13,303 INFO L276 IsEmpty]: Start isEmpty. Operand 82497 states and 505917 transitions. [2022-01-18 14:23:13,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:23:13,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:23:13,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:23:13,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 14:23:13,573 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:23:13,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:23:13,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2052859590, now seen corresponding path program 21 times [2022-01-18 14:23:13,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:23:13,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156055833] [2022-01-18 14:23:13,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:23:13,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:23:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:23:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:23:13,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:23:13,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156055833] [2022-01-18 14:23:13,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156055833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:23:13,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:23:13,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:23:13,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894718853] [2022-01-18 14:23:13,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:23:13,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:23:13,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:23:13,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:23:13,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:23:13,853 INFO L87 Difference]: Start difference. First operand 82497 states and 505917 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:17,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:23:17,410 INFO L93 Difference]: Finished difference Result 221946 states and 1282569 transitions. [2022-01-18 14:23:17,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:23:17,410 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:23:17,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:23:19,305 INFO L225 Difference]: With dead ends: 221946 [2022-01-18 14:23:19,305 INFO L226 Difference]: Without dead ends: 216154 [2022-01-18 14:23:19,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:23:19,305 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 976 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:23:19,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 366 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:23:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216154 states. [2022-01-18 14:23:23,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216154 to 83044. [2022-01-18 14:23:23,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83044 states, 83043 states have (on average 6.123791288850355) internal successors, (508538), 83043 states have internal predecessors, (508538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83044 states to 83044 states and 508538 transitions. [2022-01-18 14:23:24,731 INFO L78 Accepts]: Start accepts. Automaton has 83044 states and 508538 transitions. Word has length 37 [2022-01-18 14:23:24,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:23:24,732 INFO L470 AbstractCegarLoop]: Abstraction has 83044 states and 508538 transitions. [2022-01-18 14:23:24,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:24,732 INFO L276 IsEmpty]: Start isEmpty. Operand 83044 states and 508538 transitions. [2022-01-18 14:23:24,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:23:24,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:23:24,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:23:24,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 14:23:24,994 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:23:24,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:23:24,994 INFO L85 PathProgramCache]: Analyzing trace with hash -151500058, now seen corresponding path program 22 times [2022-01-18 14:23:24,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:23:24,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223770661] [2022-01-18 14:23:24,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:23:24,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:23:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:23:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:23:25,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:23:25,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223770661] [2022-01-18 14:23:25,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223770661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:23:25,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:23:25,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:23:25,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053704963] [2022-01-18 14:23:25,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:23:25,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:23:25,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:23:25,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:23:25,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:23:25,250 INFO L87 Difference]: Start difference. First operand 83044 states and 508538 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:28,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:23:28,683 INFO L93 Difference]: Finished difference Result 221116 states and 1277452 transitions. [2022-01-18 14:23:28,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:23:28,683 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:23:28,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:23:30,544 INFO L225 Difference]: With dead ends: 221116 [2022-01-18 14:23:30,545 INFO L226 Difference]: Without dead ends: 215607 [2022-01-18 14:23:30,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:23:30,545 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 989 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:23:30,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [989 Valid, 376 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:23:30,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215607 states. [2022-01-18 14:23:34,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215607 to 82497. [2022-01-18 14:23:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82497 states, 82496 states have (on average 6.129315360744763) internal successors, (505644), 82496 states have internal predecessors, (505644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:36,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82497 states to 82497 states and 505644 transitions. [2022-01-18 14:23:36,119 INFO L78 Accepts]: Start accepts. Automaton has 82497 states and 505644 transitions. Word has length 37 [2022-01-18 14:23:36,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:23:36,120 INFO L470 AbstractCegarLoop]: Abstraction has 82497 states and 505644 transitions. [2022-01-18 14:23:36,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:36,120 INFO L276 IsEmpty]: Start isEmpty. Operand 82497 states and 505644 transitions. [2022-01-18 14:23:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:23:36,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:23:36,373 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, 1, 1, 1, 1] [2022-01-18 14:23:36,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 14:23:36,373 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:23:36,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:23:36,374 INFO L85 PathProgramCache]: Analyzing trace with hash 549099878, now seen corresponding path program 23 times [2022-01-18 14:23:36,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:23:36,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731759789] [2022-01-18 14:23:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:23:36,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:23:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:23:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:23:36,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:23:36,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731759789] [2022-01-18 14:23:36,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731759789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:23:36,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:23:36,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:23:36,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188201588] [2022-01-18 14:23:36,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:23:36,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:23:36,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:23:36,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:23:36,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:23:36,632 INFO L87 Difference]: Start difference. First operand 82497 states and 505644 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:40,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:23:40,673 INFO L93 Difference]: Finished difference Result 221917 states and 1282209 transitions. [2022-01-18 14:23:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:23:40,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:23:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:23:43,193 INFO L225 Difference]: With dead ends: 221917 [2022-01-18 14:23:43,193 INFO L226 Difference]: Without dead ends: 216139 [2022-01-18 14:23:43,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:23:43,194 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 799 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:23:43,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [799 Valid, 444 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:23:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216139 states. [2022-01-18 14:23:48,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216139 to 83043. [2022-01-18 14:23:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83043 states, 83042 states have (on average 6.120553454878254) internal successors, (508263), 83042 states have internal predecessors, (508263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83043 states to 83043 states and 508263 transitions. [2022-01-18 14:23:49,390 INFO L78 Accepts]: Start accepts. Automaton has 83043 states and 508263 transitions. Word has length 37 [2022-01-18 14:23:49,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:23:49,390 INFO L470 AbstractCegarLoop]: Abstraction has 83043 states and 508263 transitions. [2022-01-18 14:23:49,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 83043 states and 508263 transitions. [2022-01-18 14:23:49,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:23:49,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:23:49,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:23:49,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 14:23:49,679 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:23:49,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:23:49,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1058947374, now seen corresponding path program 24 times [2022-01-18 14:23:49,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:23:49,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729486480] [2022-01-18 14:23:49,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:23:49,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:23:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:23:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:23:49,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:23:49,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729486480] [2022-01-18 14:23:49,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729486480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:23:49,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:23:49,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:23:49,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062441446] [2022-01-18 14:23:49,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:23:49,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:23:49,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:23:49,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:23:49,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:23:49,949 INFO L87 Difference]: Start difference. First operand 83043 states and 508263 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:23:53,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:23:53,447 INFO L93 Difference]: Finished difference Result 221101 states and 1277135 transitions. [2022-01-18 14:23:53,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:23:53,448 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:23:53,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:23:54,795 INFO L225 Difference]: With dead ends: 221101 [2022-01-18 14:23:54,795 INFO L226 Difference]: Without dead ends: 215113 [2022-01-18 14:23:54,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:23:54,795 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 802 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:23:54,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [802 Valid, 432 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:23:55,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215113 states. [2022-01-18 14:23:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215113 to 82017. [2022-01-18 14:23:59,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82017 states, 82016 states have (on average 6.140570132657042) internal successors, (503625), 82016 states have internal predecessors, (503625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82017 states to 82017 states and 503625 transitions. [2022-01-18 14:24:00,699 INFO L78 Accepts]: Start accepts. Automaton has 82017 states and 503625 transitions. Word has length 37 [2022-01-18 14:24:00,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:24:00,699 INFO L470 AbstractCegarLoop]: Abstraction has 82017 states and 503625 transitions. [2022-01-18 14:24:00,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 82017 states and 503625 transitions. [2022-01-18 14:24:00,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:24:00,995 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:24:00,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:24:00,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 14:24:00,995 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:24:00,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:24:00,996 INFO L85 PathProgramCache]: Analyzing trace with hash 369239868, now seen corresponding path program 25 times [2022-01-18 14:24:00,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:24:00,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307740565] [2022-01-18 14:24:00,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:24:00,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:24:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:24:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:24:01,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:24:01,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307740565] [2022-01-18 14:24:01,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307740565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:24:01,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:24:01,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:24:01,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550938324] [2022-01-18 14:24:01,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:24:01,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:24:01,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:24:01,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:24:01,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:24:01,266 INFO L87 Difference]: Start difference. First operand 82017 states and 503625 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:04,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:24:04,886 INFO L93 Difference]: Finished difference Result 224664 states and 1298820 transitions. [2022-01-18 14:24:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:24:04,887 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:24:04,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:24:06,745 INFO L225 Difference]: With dead ends: 224664 [2022-01-18 14:24:06,745 INFO L226 Difference]: Without dead ends: 219446 [2022-01-18 14:24:06,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:24:06,746 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 994 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:24:06,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 376 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 14:24:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219446 states. [2022-01-18 14:24:11,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219446 to 83512. [2022-01-18 14:24:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83512 states, 83511 states have (on average 6.124977547867945) internal successors, (511503), 83511 states have internal predecessors, (511503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83512 states to 83512 states and 511503 transitions. [2022-01-18 14:24:12,240 INFO L78 Accepts]: Start accepts. Automaton has 83512 states and 511503 transitions. Word has length 37 [2022-01-18 14:24:12,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:24:12,241 INFO L470 AbstractCegarLoop]: Abstraction has 83512 states and 511503 transitions. [2022-01-18 14:24:12,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 83512 states and 511503 transitions. [2022-01-18 14:24:12,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:24:12,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:24:12,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:24:12,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 14:24:12,506 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:24:12,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:24:12,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2033365128, now seen corresponding path program 26 times [2022-01-18 14:24:12,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:24:12,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495907222] [2022-01-18 14:24:12,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:24:12,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:24:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:24:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:24:12,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:24:12,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495907222] [2022-01-18 14:24:12,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495907222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:24:12,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:24:12,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:24:12,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137559132] [2022-01-18 14:24:12,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:24:12,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:24:12,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:24:12,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:24:12,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:24:12,770 INFO L87 Difference]: Start difference. First operand 83512 states and 511503 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:16,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:24:16,319 INFO L93 Difference]: Finished difference Result 225238 states and 1301435 transitions. [2022-01-18 14:24:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:24:16,319 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:24:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:24:18,205 INFO L225 Difference]: With dead ends: 225238 [2022-01-18 14:24:18,205 INFO L226 Difference]: Without dead ends: 218643 [2022-01-18 14:24:18,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:24:18,206 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 916 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:24:18,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [916 Valid, 449 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:24:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218643 states. [2022-01-18 14:24:23,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218643 to 82709. [2022-01-18 14:24:23,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82709 states, 82708 states have (on average 6.133977366155632) internal successors, (507329), 82708 states have internal predecessors, (507329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82709 states to 82709 states and 507329 transitions. [2022-01-18 14:24:23,689 INFO L78 Accepts]: Start accepts. Automaton has 82709 states and 507329 transitions. Word has length 37 [2022-01-18 14:24:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:24:23,689 INFO L470 AbstractCegarLoop]: Abstraction has 82709 states and 507329 transitions. [2022-01-18 14:24:23,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:23,689 INFO L276 IsEmpty]: Start isEmpty. Operand 82709 states and 507329 transitions. [2022-01-18 14:24:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:24:23,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:24:23,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:24:23,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 14:24:23,956 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:24:23,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:24:23,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1191108056, now seen corresponding path program 27 times [2022-01-18 14:24:23,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:24:23,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149740323] [2022-01-18 14:24:23,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:24:23,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:24:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:24:24,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:24:24,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:24:24,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149740323] [2022-01-18 14:24:24,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149740323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:24:24,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:24:24,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:24:24,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063737557] [2022-01-18 14:24:24,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:24:24,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:24:24,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:24:24,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:24:24,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:24:24,257 INFO L87 Difference]: Start difference. First operand 82709 states and 507329 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:28,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:24:28,353 INFO L93 Difference]: Finished difference Result 224521 states and 1297798 transitions. [2022-01-18 14:24:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:24:28,353 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:24:28,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:24:31,018 INFO L225 Difference]: With dead ends: 224521 [2022-01-18 14:24:31,018 INFO L226 Difference]: Without dead ends: 219303 [2022-01-18 14:24:31,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:24:31,037 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 1301 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:24:31,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 327 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:24:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219303 states. [2022-01-18 14:24:36,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219303 to 83383. [2022-01-18 14:24:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83383 states, 83382 states have (on average 6.122712335995779) internal successors, (510524), 83382 states have internal predecessors, (510524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:37,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83383 states to 83383 states and 510524 transitions. [2022-01-18 14:24:37,343 INFO L78 Accepts]: Start accepts. Automaton has 83383 states and 510524 transitions. Word has length 37 [2022-01-18 14:24:37,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:24:37,343 INFO L470 AbstractCegarLoop]: Abstraction has 83383 states and 510524 transitions. [2022-01-18 14:24:37,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:37,344 INFO L276 IsEmpty]: Start isEmpty. Operand 83383 states and 510524 transitions. [2022-01-18 14:24:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:24:37,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:24:37,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:24:37,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 14:24:37,666 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:24:37,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:24:37,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2056344928, now seen corresponding path program 28 times [2022-01-18 14:24:37,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:24:37,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882288678] [2022-01-18 14:24:37,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:24:37,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:24:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:24:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:24:37,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:24:37,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882288678] [2022-01-18 14:24:37,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882288678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:24:37,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:24:37,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:24:37,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839263818] [2022-01-18 14:24:37,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:24:37,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:24:37,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:24:37,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:24:37,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:24:37,926 INFO L87 Difference]: Start difference. First operand 83383 states and 510524 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:41,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:24:41,564 INFO L93 Difference]: Finished difference Result 225081 states and 1300372 transitions. [2022-01-18 14:24:41,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:24:41,565 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:24:41,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:24:43,497 INFO L225 Difference]: With dead ends: 225081 [2022-01-18 14:24:43,498 INFO L226 Difference]: Without dead ends: 218629 [2022-01-18 14:24:43,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:24:43,498 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 1000 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:24:43,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1000 Valid, 413 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:24:43,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218629 states. [2022-01-18 14:24:47,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218629 to 82709. [2022-01-18 14:24:47,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82709 states, 82708 states have (on average 6.129902790540214) internal successors, (506992), 82708 states have internal predecessors, (506992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:48,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82709 states to 82709 states and 506992 transitions. [2022-01-18 14:24:48,987 INFO L78 Accepts]: Start accepts. Automaton has 82709 states and 506992 transitions. Word has length 37 [2022-01-18 14:24:48,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:24:48,987 INFO L470 AbstractCegarLoop]: Abstraction has 82709 states and 506992 transitions. [2022-01-18 14:24:48,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:48,987 INFO L276 IsEmpty]: Start isEmpty. Operand 82709 states and 506992 transitions. [2022-01-18 14:24:49,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:24:49,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:24:49,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:24:49,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 14:24:49,254 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:24:49,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:24:49,254 INFO L85 PathProgramCache]: Analyzing trace with hash 687198944, now seen corresponding path program 29 times [2022-01-18 14:24:49,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:24:49,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688037869] [2022-01-18 14:24:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:24:49,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:24:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:24:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:24:49,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:24:49,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688037869] [2022-01-18 14:24:49,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688037869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:24:49,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:24:49,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:24:49,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880648495] [2022-01-18 14:24:49,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:24:49,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:24:49,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:24:49,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:24:49,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:24:49,523 INFO L87 Difference]: Start difference. First operand 82709 states and 506992 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:24:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:24:53,108 INFO L93 Difference]: Finished difference Result 225950 states and 1305808 transitions. [2022-01-18 14:24:53,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:24:53,108 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:24:53,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:24:55,039 INFO L225 Difference]: With dead ends: 225950 [2022-01-18 14:24:55,039 INFO L226 Difference]: Without dead ends: 220158 [2022-01-18 14:24:55,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:24:55,040 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 1032 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:24:55,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 375 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:24:55,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220158 states. [2022-01-18 14:24:59,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220158 to 83664. [2022-01-18 14:24:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83664 states, 83663 states have (on average 6.115881572499193) internal successors, (511673), 83663 states have internal predecessors, (511673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:00,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83664 states to 83664 states and 511673 transitions. [2022-01-18 14:25:00,687 INFO L78 Accepts]: Start accepts. Automaton has 83664 states and 511673 transitions. Word has length 37 [2022-01-18 14:25:00,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:25:00,687 INFO L470 AbstractCegarLoop]: Abstraction has 83664 states and 511673 transitions. [2022-01-18 14:25:00,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:00,687 INFO L276 IsEmpty]: Start isEmpty. Operand 83664 states and 511673 transitions. [2022-01-18 14:25:00,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:25:00,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:25:00,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:25:00,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 14:25:00,952 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:25:00,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:25:00,952 INFO L85 PathProgramCache]: Analyzing trace with hash -394667836, now seen corresponding path program 30 times [2022-01-18 14:25:00,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:25:00,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107489161] [2022-01-18 14:25:00,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:25:00,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:25:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:25:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:25:01,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:25:01,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107489161] [2022-01-18 14:25:01,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107489161] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:25:01,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:25:01,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:25:01,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888583287] [2022-01-18 14:25:01,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:25:01,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:25:01,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:25:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:25:01,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:25:01,212 INFO L87 Difference]: Start difference. First operand 83664 states and 511673 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:04,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:25:04,677 INFO L93 Difference]: Finished difference Result 225936 states and 1304811 transitions. [2022-01-18 14:25:04,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:25:04,677 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:25:04,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:25:06,627 INFO L225 Difference]: With dead ends: 225936 [2022-01-18 14:25:06,627 INFO L226 Difference]: Without dead ends: 218738 [2022-01-18 14:25:06,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:25:06,628 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 870 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:25:06,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 414 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:25:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218738 states. [2022-01-18 14:25:11,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218738 to 82244. [2022-01-18 14:25:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82244 states, 82243 states have (on average 6.138200211568158) internal successors, (504824), 82243 states have internal predecessors, (504824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82244 states to 82244 states and 504824 transitions. [2022-01-18 14:25:12,105 INFO L78 Accepts]: Start accepts. Automaton has 82244 states and 504824 transitions. Word has length 37 [2022-01-18 14:25:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:25:12,105 INFO L470 AbstractCegarLoop]: Abstraction has 82244 states and 504824 transitions. [2022-01-18 14:25:12,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:12,106 INFO L276 IsEmpty]: Start isEmpty. Operand 82244 states and 504824 transitions. [2022-01-18 14:25:12,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:25:12,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:25:12,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:25:12,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 14:25:12,360 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:25:12,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:25:12,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1174017666, now seen corresponding path program 31 times [2022-01-18 14:25:12,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:25:12,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919084494] [2022-01-18 14:25:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:25:12,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:25:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:25:12,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:25:12,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:25:12,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919084494] [2022-01-18 14:25:12,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919084494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:25:12,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:25:12,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:25:12,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246672285] [2022-01-18 14:25:12,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:25:12,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:25:12,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:25:12,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:25:12,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:25:12,655 INFO L87 Difference]: Start difference. First operand 82244 states and 504824 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:16,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:25:16,794 INFO L93 Difference]: Finished difference Result 224351 states and 1297214 transitions. [2022-01-18 14:25:16,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:25:16,795 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:25:16,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:25:19,230 INFO L225 Difference]: With dead ends: 224351 [2022-01-18 14:25:19,230 INFO L226 Difference]: Without dead ends: 219133 [2022-01-18 14:25:19,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:25:19,231 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 1142 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 14:25:19,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 363 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 14:25:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219133 states. [2022-01-18 14:25:24,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219133 to 83437. [2022-01-18 14:25:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83437 states, 83436 states have (on average 6.124047173881777) internal successors, (510966), 83436 states have internal predecessors, (510966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:25,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83437 states to 83437 states and 510966 transitions. [2022-01-18 14:25:25,770 INFO L78 Accepts]: Start accepts. Automaton has 83437 states and 510966 transitions. Word has length 37 [2022-01-18 14:25:25,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:25:25,771 INFO L470 AbstractCegarLoop]: Abstraction has 83437 states and 510966 transitions. [2022-01-18 14:25:25,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:25,780 INFO L276 IsEmpty]: Start isEmpty. Operand 83437 states and 510966 transitions. [2022-01-18 14:25:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:25:26,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:25:26,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:25:26,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 14:25:26,095 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:25:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:25:26,096 INFO L85 PathProgramCache]: Analyzing trace with hash 490107594, now seen corresponding path program 32 times [2022-01-18 14:25:26,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:25:26,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397764700] [2022-01-18 14:25:26,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:25:26,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:25:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:25:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:25:26,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:25:26,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397764700] [2022-01-18 14:25:26,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397764700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:25:26,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:25:26,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:25:26,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492527463] [2022-01-18 14:25:26,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:25:26,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:25:26,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:25:26,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:25:26,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:25:26,376 INFO L87 Difference]: Start difference. First operand 83437 states and 510966 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:30,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:25:30,079 INFO L93 Difference]: Finished difference Result 224925 states and 1299829 transitions. [2022-01-18 14:25:30,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:25:30,079 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:25:30,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:25:32,016 INFO L225 Difference]: With dead ends: 224925 [2022-01-18 14:25:32,017 INFO L226 Difference]: Without dead ends: 218330 [2022-01-18 14:25:32,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:25:32,017 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 935 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:25:32,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [935 Valid, 403 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:25:32,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218330 states. [2022-01-18 14:25:36,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218330 to 82634. [2022-01-18 14:25:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82634 states, 82633 states have (on average 6.1331792383188315) internal successors, (506803), 82633 states have internal predecessors, (506803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82634 states to 82634 states and 506803 transitions. [2022-01-18 14:25:37,525 INFO L78 Accepts]: Start accepts. Automaton has 82634 states and 506803 transitions. Word has length 37 [2022-01-18 14:25:37,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:25:37,525 INFO L470 AbstractCegarLoop]: Abstraction has 82634 states and 506803 transitions. [2022-01-18 14:25:37,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:37,525 INFO L276 IsEmpty]: Start isEmpty. Operand 82634 states and 506803 transitions. [2022-01-18 14:25:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:25:37,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:25:37,822 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, 1, 1, 1, 1] [2022-01-18 14:25:37,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 14:25:37,822 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:25:37,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:25:37,823 INFO L85 PathProgramCache]: Analyzing trace with hash 342673428, now seen corresponding path program 1 times [2022-01-18 14:25:37,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:25:37,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319040635] [2022-01-18 14:25:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:25:37,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:25:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:25:37,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:25:37,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:25:37,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319040635] [2022-01-18 14:25:37,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319040635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:25:37,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:25:37,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:25:37,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239709666] [2022-01-18 14:25:37,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:25:37,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 14:25:37,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:25:37,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 14:25:37,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:25:37,833 INFO L87 Difference]: Start difference. First operand 82634 states and 506803 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:38,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:25:38,997 INFO L93 Difference]: Finished difference Result 61334 states and 374034 transitions. [2022-01-18 14:25:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 14:25:38,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:25:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:25:39,334 INFO L225 Difference]: With dead ends: 61334 [2022-01-18 14:25:39,334 INFO L226 Difference]: Without dead ends: 61334 [2022-01-18 14:25:39,334 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 [2022-01-18 14:25:39,335 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 65 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:25:39,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 39 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:25:39,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61334 states. [2022-01-18 14:25:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61334 to 61334. [2022-01-18 14:25:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61334 states, 61333 states have (on average 6.0984135783346645) internal successors, (374034), 61333 states have internal predecessors, (374034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:41,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61334 states to 61334 states and 374034 transitions. [2022-01-18 14:25:41,983 INFO L78 Accepts]: Start accepts. Automaton has 61334 states and 374034 transitions. Word has length 37 [2022-01-18 14:25:41,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:25:41,983 INFO L470 AbstractCegarLoop]: Abstraction has 61334 states and 374034 transitions. [2022-01-18 14:25:41,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:41,983 INFO L276 IsEmpty]: Start isEmpty. Operand 61334 states and 374034 transitions. [2022-01-18 14:25:42,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:25:42,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:25:42,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:25:42,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 14:25:42,258 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:25:42,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:25:42,259 INFO L85 PathProgramCache]: Analyzing trace with hash -887620036, now seen corresponding path program 33 times [2022-01-18 14:25:42,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:25:42,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109736002] [2022-01-18 14:25:42,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:25:42,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:25:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:25:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:25:42,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:25:42,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109736002] [2022-01-18 14:25:42,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109736002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:25:42,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:25:42,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:25:42,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335974966] [2022-01-18 14:25:42,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:25:42,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:25:42,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:25:42,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:25:42,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:25:42,530 INFO L87 Difference]: Start difference. First operand 61334 states and 374034 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:44,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:25:44,918 INFO L93 Difference]: Finished difference Result 157865 states and 907092 transitions. [2022-01-18 14:25:44,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:25:44,918 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:25:44,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:25:46,363 INFO L225 Difference]: With dead ends: 157865 [2022-01-18 14:25:46,363 INFO L226 Difference]: Without dead ends: 154687 [2022-01-18 14:25:46,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:25:46,363 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 911 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 14:25:46,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [911 Valid, 398 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 14:25:46,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154687 states. [2022-01-18 14:25:49,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154687 to 61774. [2022-01-18 14:25:49,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61774 states, 61773 states have (on average 6.088323377527399) internal successors, (376094), 61773 states have internal predecessors, (376094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61774 states to 61774 states and 376094 transitions. [2022-01-18 14:25:50,085 INFO L78 Accepts]: Start accepts. Automaton has 61774 states and 376094 transitions. Word has length 37 [2022-01-18 14:25:50,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:25:50,085 INFO L470 AbstractCegarLoop]: Abstraction has 61774 states and 376094 transitions. [2022-01-18 14:25:50,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:50,085 INFO L276 IsEmpty]: Start isEmpty. Operand 61774 states and 376094 transitions. [2022-01-18 14:25:50,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:25:50,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:25:50,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:25:50,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 14:25:50,276 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:25:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:25:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash 286442052, now seen corresponding path program 34 times [2022-01-18 14:25:50,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:25:50,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475158031] [2022-01-18 14:25:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:25:50,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:25:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:25:50,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:25:50,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:25:50,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475158031] [2022-01-18 14:25:50,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475158031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:25:50,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:25:50,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:25:50,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188057641] [2022-01-18 14:25:50,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:25:50,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:25:50,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:25:50,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:25:50,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:25:50,534 INFO L87 Difference]: Start difference. First operand 61774 states and 376094 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:53,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:25:53,325 INFO L93 Difference]: Finished difference Result 158025 states and 907676 transitions. [2022-01-18 14:25:53,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:25:53,325 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-18 14:25:53,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:25:54,225 INFO L225 Difference]: With dead ends: 158025 [2022-01-18 14:25:54,225 INFO L226 Difference]: Without dead ends: 154247 [2022-01-18 14:25:54,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:25:54,225 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 941 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:25:54,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [941 Valid, 354 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 14:25:54,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154247 states. [2022-01-18 14:25:57,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154247 to 61334. [2022-01-18 14:25:57,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61334 states, 61333 states have (on average 6.0948266023184905) internal successors, (373814), 61333 states have internal predecessors, (373814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61334 states to 61334 states and 373814 transitions. [2022-01-18 14:25:58,168 INFO L78 Accepts]: Start accepts. Automaton has 61334 states and 373814 transitions. Word has length 37 [2022-01-18 14:25:58,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:25:58,168 INFO L470 AbstractCegarLoop]: Abstraction has 61334 states and 373814 transitions. [2022-01-18 14:25:58,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:25:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 61334 states and 373814 transitions. [2022-01-18 14:25:58,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-18 14:25:58,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:25:58,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:25:58,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 14:25:58,938 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-01-18 14:25:58,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:25:58,941 INFO L85 PathProgramCache]: Analyzing trace with hash -740336700, now seen corresponding path program 35 times [2022-01-18 14:25:58,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:25:58,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772279828] [2022-01-18 14:25:58,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:25:58,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:25:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:25:59,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:25:59,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:25:59,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772279828] [2022-01-18 14:25:59,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772279828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:25:59,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:25:59,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 14:25:59,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367609830] [2022-01-18 14:25:59,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:25:59,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 14:25:59,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:25:59,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 14:25:59,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-01-18 14:25:59,215 INFO L87 Difference]: Start difference. First operand 61334 states and 373814 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 14:26:00,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 14:26:00,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-01-18 14:26:00,993 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 14:26:00,993 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 259 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 14:26:00,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 389 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 14:26:00,997 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 10 remaining) [2022-01-18 14:26:00,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 14:26:00,998 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). [2022-01-18 14:26:01,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (8 of 10 remaining) [2022-01-18 14:26:01,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (7 of 10 remaining) [2022-01-18 14:26:01,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (6 of 10 remaining) [2022-01-18 14:26:01,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (5 of 10 remaining) [2022-01-18 14:26:01,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATION (4 of 10 remaining) [2022-01-18 14:26:01,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5INUSE_VIOLATION (3 of 10 remaining) [2022-01-18 14:26:01,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6INUSE_VIOLATION (2 of 10 remaining) [2022-01-18 14:26:01,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7INUSE_VIOLATION (1 of 10 remaining) [2022-01-18 14:26:01,000 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8INUSE_VIOLATION (0 of 10 remaining) [2022-01-18 14:26:01,003 INFO L732 BasicCegarLoop]: Path program histogram: [35, 1, 1, 1, 1, 1, 1] [2022-01-18 14:26:01,005 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 14:26:01,005 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 14:26:01,017 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 02:26:01 BasicIcfg [2022-01-18 14:26:01,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 14:26:01,018 INFO L158 Benchmark]: Toolchain (without parser) took 565652.42ms. Allocated memory was 396.4MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 355.4MB in the beginning and 8.3GB in the end (delta: -7.9GB). Peak memory consumption was 8.3GB. Max. memory is 16.0GB. [2022-01-18 14:26:01,020 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 396.4MB. Free memory is still 356.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 14:26:01,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.69ms. Allocated memory is still 396.4MB. Free memory was 355.4MB in the beginning and 353.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 14:26:01,020 INFO L158 Benchmark]: Boogie Preprocessor took 8.84ms. Allocated memory is still 396.4MB. Free memory was 353.7MB in the beginning and 352.8MB in the end (delta: 899.2kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 14:26:01,020 INFO L158 Benchmark]: RCFGBuilder took 180.74ms. Allocated memory is still 396.4MB. Free memory was 352.8MB in the beginning and 343.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 14:26:01,020 INFO L158 Benchmark]: TraceAbstraction took 565440.86ms. Allocated memory was 396.4MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 343.0MB in the beginning and 8.3GB in the end (delta: -7.9GB). Peak memory consumption was 8.3GB. Max. memory is 16.0GB. [2022-01-18 14:26:01,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 396.4MB. Free memory is still 356.4MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 18.69ms. Allocated memory is still 396.4MB. Free memory was 355.4MB in the beginning and 353.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 8.84ms. Allocated memory is still 396.4MB. Free memory was 353.7MB in the beginning and 352.8MB in the end (delta: 899.2kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 180.74ms. Allocated memory is still 396.4MB. Free memory was 352.8MB in the beginning and 343.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 565440.86ms. Allocated memory was 396.4MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 343.0MB in the beginning and 8.3GB in the end (delta: -7.9GB). Peak memory consumption was 8.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 10]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 15]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 17]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (61334states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (105240 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 19 procedures, 85 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 565.3s, OverallIterations: 41, TraceHistogramMax: 1, PathProgramHistogramMax: 35, EmptinessCheckTime: 20.3s, AutomataDifference: 240.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35328 SdHoareTripleChecker+Valid, 29.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35328 mSDsluCounter, 13996 SdHoareTripleChecker+Invalid, 23.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41981 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46418 IncrementalHoareTripleChecker+Invalid, 46439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 4542 mSDtfsCounter, 46418 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 356 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=271986occurred in iteration=0, InterpolantAutomatonStates: 392, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 278.9s AutomataMinimizationTime, 40 MinimizatonAttempts, 5212662 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 1517 NumberOfCodeBlocks, 1517 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 1476 ConstructedInterpolants, 0 QuantifiedInterpolants, 46380 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-01-18 14:26:01,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 !SESSION 2022-01-18 14:16:33.245 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.12 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl !ENTRY org.eclipse.osgi 4 0 2022-01-18 14:26:01.259 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3463ebcf1/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3463ebcf1/.metadata/.log.