/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 03:41:52,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 03:41:52,380 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 03:41:52,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 03:41:52,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 03:41:52,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 03:41:52,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 03:41:52,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 03:41:52,409 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 03:41:52,412 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 03:41:52,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 03:41:52,413 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 03:41:52,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 03:41:52,414 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 03:41:52,414 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 03:41:52,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 03:41:52,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 03:41:52,415 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 03:41:52,415 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 03:41:52,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 03:41:52,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 03:41:52,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 03:41:52,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 03:41:52,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 03:41:52,416 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 03:41:52,416 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 03:41:52,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 03:41:52,416 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 03:41:52,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 03:41:52,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 03:41:52,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 03:41:52,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 03:41:52,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 03:41:52,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 03:41:52,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 03:41:52,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 03:41:52,418 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 03:41:52,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 03:41:52,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 03:41:52,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 03:41:52,419 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 03:41:52,419 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 03:41:52,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 03:41:52,419 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 03:41:52,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 03:41:52,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 03:41:52,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 03:41:52,701 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 03:41:52,704 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 03:41:52,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label24.c [2023-12-19 03:41:53,858 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 03:41:54,188 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 03:41:54,189 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label24.c [2023-12-19 03:41:54,217 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b9c7e65/7c0dc3f6084d471990d63088620307d7/FLAG1937105fe [2023-12-19 03:41:54,229 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b9c7e65/7c0dc3f6084d471990d63088620307d7 [2023-12-19 03:41:54,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 03:41:54,232 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 03:41:54,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 03:41:54,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 03:41:54,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 03:41:54,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:41:54" (1/1) ... [2023-12-19 03:41:54,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ae6ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:54, skipping insertion in model container [2023-12-19 03:41:54,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:41:54" (1/1) ... [2023-12-19 03:41:54,347 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 03:41:54,545 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label24.c[5810,5823] [2023-12-19 03:41:55,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 03:41:55,151 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 03:41:55,169 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label24.c[5810,5823] [2023-12-19 03:41:55,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 03:41:55,493 INFO L206 MainTranslator]: Completed translation [2023-12-19 03:41:55,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55 WrapperNode [2023-12-19 03:41:55,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 03:41:55,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 03:41:55,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 03:41:55,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 03:41:55,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:55,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:55,748 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2023-12-19 03:41:55,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 03:41:55,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 03:41:55,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 03:41:55,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 03:41:55,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:55,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:55,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:56,041 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 03:41:56,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:56,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:56,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:56,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:56,208 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:56,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:56,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 03:41:56,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 03:41:56,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 03:41:56,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 03:41:56,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (1/1) ... [2023-12-19 03:41:56,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 03:41:56,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:41:56,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 03:41:56,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 03:41:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 03:41:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 03:41:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 03:41:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 03:41:56,520 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 03:41:56,521 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 03:41:59,455 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 03:41:59,520 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 03:41:59,520 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 03:41:59,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:41:59 BoogieIcfgContainer [2023-12-19 03:41:59,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 03:41:59,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 03:41:59,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 03:41:59,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 03:41:59,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:41:54" (1/3) ... [2023-12-19 03:41:59,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2165f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:41:59, skipping insertion in model container [2023-12-19 03:41:59,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:41:55" (2/3) ... [2023-12-19 03:41:59,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2165f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:41:59, skipping insertion in model container [2023-12-19 03:41:59,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:41:59" (3/3) ... [2023-12-19 03:41:59,532 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label24.c [2023-12-19 03:41:59,545 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 03:41:59,545 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 03:41:59,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 03:41:59,613 INFO L357 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@21917dd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 03:41:59,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 03:41:59,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:41:59,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-19 03:41:59,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:41:59,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:41:59,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:41:59,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:41:59,633 INFO L85 PathProgramCache]: Analyzing trace with hash -979491199, now seen corresponding path program 1 times [2023-12-19 03:41:59,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:41:59,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387986328] [2023-12-19 03:41:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:41:59,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:41:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:41:59,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:41:59,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:41:59,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387986328] [2023-12-19 03:41:59,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387986328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:41:59,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:41:59,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 03:41:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806813821] [2023-12-19 03:41:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:41:59,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 03:41:59,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:41:59,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 03:41:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 03:41:59,796 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 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 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:41:59,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:41:59,868 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2023-12-19 03:41:59,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 03:41:59,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-12-19 03:41:59,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:41:59,883 INFO L225 Difference]: With dead ends: 1511 [2023-12-19 03:41:59,883 INFO L226 Difference]: Without dead ends: 754 [2023-12-19 03:41:59,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 03:41:59,890 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 03:41:59,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 03:41:59,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-12-19 03:41:59,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-12-19 03:41:59,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:41:59,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2023-12-19 03:41:59,958 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 45 [2023-12-19 03:41:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:41:59,958 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2023-12-19 03:41:59,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:41:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2023-12-19 03:41:59,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-19 03:41:59,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:41:59,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:41:59,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 03:41:59,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:41:59,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:41:59,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1470518313, now seen corresponding path program 1 times [2023-12-19 03:41:59,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:41:59,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131344945] [2023-12-19 03:41:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:41:59,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:42:00,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:00,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131344945] [2023-12-19 03:42:00,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131344945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:00,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:00,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 03:42:00,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404916226] [2023-12-19 03:42:00,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:00,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:00,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:00,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:00,223 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:03,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:03,029 INFO L93 Difference]: Finished difference Result 2258 states and 4311 transitions. [2023-12-19 03:42:03,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:42:03,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-12-19 03:42:03,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:03,036 INFO L225 Difference]: With dead ends: 2258 [2023-12-19 03:42:03,036 INFO L226 Difference]: Without dead ends: 1505 [2023-12-19 03:42:03,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:03,038 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 823 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:03,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 113 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-19 03:42:03,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2023-12-19 03:42:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2023-12-19 03:42:03,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.846409574468085) internal successors, (2777), 1504 states have internal predecessors, (2777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2777 transitions. [2023-12-19 03:42:03,071 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2777 transitions. Word has length 45 [2023-12-19 03:42:03,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:03,071 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2777 transitions. [2023-12-19 03:42:03,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:03,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2777 transitions. [2023-12-19 03:42:03,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 03:42:03,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:03,074 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:03,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 03:42:03,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:03,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:03,074 INFO L85 PathProgramCache]: Analyzing trace with hash 496265151, now seen corresponding path program 1 times [2023-12-19 03:42:03,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:03,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276001167] [2023-12-19 03:42:03,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:03,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:42:03,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:03,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276001167] [2023-12-19 03:42:03,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276001167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:03,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:03,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 03:42:03,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057396785] [2023-12-19 03:42:03,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:03,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:03,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:03,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:03,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:03,244 INFO L87 Difference]: Start difference. First operand 1505 states and 2777 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:05,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:05,782 INFO L93 Difference]: Finished difference Result 3760 states and 6892 transitions. [2023-12-19 03:42:05,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:42:05,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-19 03:42:05,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:05,790 INFO L225 Difference]: With dead ends: 3760 [2023-12-19 03:42:05,790 INFO L226 Difference]: Without dead ends: 2256 [2023-12-19 03:42:05,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:05,795 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 780 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:05,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 446 Invalid, 2860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-19 03:42:05,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2023-12-19 03:42:05,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2256. [2023-12-19 03:42:05,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2256 states, 2255 states have (on average 1.4421286031042129) internal successors, (3252), 2255 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3252 transitions. [2023-12-19 03:42:05,839 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3252 transitions. Word has length 114 [2023-12-19 03:42:05,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:05,839 INFO L495 AbstractCegarLoop]: Abstraction has 2256 states and 3252 transitions. [2023-12-19 03:42:05,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:05,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3252 transitions. [2023-12-19 03:42:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-19 03:42:05,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:05,841 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:05,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 03:42:05,842 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:05,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:05,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1226564934, now seen corresponding path program 1 times [2023-12-19 03:42:05,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:05,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550068239] [2023-12-19 03:42:05,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:05,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:06,060 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:42:06,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:06,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550068239] [2023-12-19 03:42:06,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550068239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:06,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:06,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:06,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437211058] [2023-12-19 03:42:06,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:06,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:42:06,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:06,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:42:06,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:42:06,062 INFO L87 Difference]: Start difference. First operand 2256 states and 3252 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:09,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:09,705 INFO L93 Difference]: Finished difference Result 6803 states and 9791 transitions. [2023-12-19 03:42:09,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:42:09,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-19 03:42:09,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:09,718 INFO L225 Difference]: With dead ends: 6803 [2023-12-19 03:42:09,718 INFO L226 Difference]: Without dead ends: 4511 [2023-12-19 03:42:09,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:42:09,722 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 690 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3802 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 4465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 3802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:09,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 703 Invalid, 4465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 3802 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-19 03:42:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4511 states. [2023-12-19 03:42:09,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4511 to 4509. [2023-12-19 03:42:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4509 states, 4508 states have (on average 1.2282608695652173) internal successors, (5537), 4508 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:09,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4509 states to 4509 states and 5537 transitions. [2023-12-19 03:42:09,783 INFO L78 Accepts]: Start accepts. Automaton has 4509 states and 5537 transitions. Word has length 116 [2023-12-19 03:42:09,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:09,784 INFO L495 AbstractCegarLoop]: Abstraction has 4509 states and 5537 transitions. [2023-12-19 03:42:09,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:09,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4509 states and 5537 transitions. [2023-12-19 03:42:09,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-19 03:42:09,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:09,787 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:09,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 03:42:09,787 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:09,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1179659880, now seen corresponding path program 1 times [2023-12-19 03:42:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:09,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541437039] [2023-12-19 03:42:09,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:09,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:10,210 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-19 03:42:10,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:10,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541437039] [2023-12-19 03:42:10,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541437039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:10,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:10,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:10,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20812571] [2023-12-19 03:42:10,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:10,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:42:10,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:10,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:42:10,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:42:10,215 INFO L87 Difference]: Start difference. First operand 4509 states and 5537 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:13,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:13,273 INFO L93 Difference]: Finished difference Result 11309 states and 14293 transitions. [2023-12-19 03:42:13,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:42:13,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257 [2023-12-19 03:42:13,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:13,292 INFO L225 Difference]: With dead ends: 11309 [2023-12-19 03:42:13,293 INFO L226 Difference]: Without dead ends: 6764 [2023-12-19 03:42:13,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:42:13,300 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 775 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3719 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 4261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 3719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:13,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 324 Invalid, 4261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 3719 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 03:42:13,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6764 states. [2023-12-19 03:42:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6764 to 6762. [2023-12-19 03:42:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6762 states, 6761 states have (on average 1.1993787901198047) internal successors, (8109), 6761 states have internal predecessors, (8109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:13,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6762 states to 6762 states and 8109 transitions. [2023-12-19 03:42:13,398 INFO L78 Accepts]: Start accepts. Automaton has 6762 states and 8109 transitions. Word has length 257 [2023-12-19 03:42:13,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:13,400 INFO L495 AbstractCegarLoop]: Abstraction has 6762 states and 8109 transitions. [2023-12-19 03:42:13,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:13,400 INFO L276 IsEmpty]: Start isEmpty. Operand 6762 states and 8109 transitions. [2023-12-19 03:42:13,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-19 03:42:13,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:13,404 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:13,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 03:42:13,404 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:13,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:13,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2102270667, now seen corresponding path program 1 times [2023-12-19 03:42:13,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:13,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421422526] [2023-12-19 03:42:13,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:13,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-19 03:42:13,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:13,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421422526] [2023-12-19 03:42:13,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421422526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:13,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:13,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:13,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074947730] [2023-12-19 03:42:13,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:13,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:42:13,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:13,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:42:13,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:42:13,868 INFO L87 Difference]: Start difference. First operand 6762 states and 8109 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:17,621 INFO L93 Difference]: Finished difference Result 19533 states and 23542 transitions. [2023-12-19 03:42:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:42:17,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2023-12-19 03:42:17,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:17,673 INFO L225 Difference]: With dead ends: 19533 [2023-12-19 03:42:17,674 INFO L226 Difference]: Without dead ends: 12772 [2023-12-19 03:42:17,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 03:42:17,686 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 2027 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 4473 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 5022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 4473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:17,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 605 Invalid, 5022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 4473 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-19 03:42:17,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12772 states. [2023-12-19 03:42:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12772 to 12019. [2023-12-19 03:42:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12019 states, 12018 states have (on average 1.138042935596605) internal successors, (13677), 12018 states have internal predecessors, (13677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:17,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12019 states to 12019 states and 13677 transitions. [2023-12-19 03:42:17,893 INFO L78 Accepts]: Start accepts. Automaton has 12019 states and 13677 transitions. Word has length 258 [2023-12-19 03:42:17,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:17,894 INFO L495 AbstractCegarLoop]: Abstraction has 12019 states and 13677 transitions. [2023-12-19 03:42:17,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:17,894 INFO L276 IsEmpty]: Start isEmpty. Operand 12019 states and 13677 transitions. [2023-12-19 03:42:17,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-12-19 03:42:17,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:17,897 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:17,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 03:42:17,897 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:17,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:17,898 INFO L85 PathProgramCache]: Analyzing trace with hash 8245619, now seen corresponding path program 1 times [2023-12-19 03:42:17,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:17,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151643076] [2023-12-19 03:42:17,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:17,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:18,045 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-19 03:42:18,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:18,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151643076] [2023-12-19 03:42:18,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151643076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:18,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:18,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:18,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948048984] [2023-12-19 03:42:18,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:18,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:18,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:18,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:18,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:18,047 INFO L87 Difference]: Start difference. First operand 12019 states and 13677 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:20,749 INFO L93 Difference]: Finished difference Result 33049 states and 37996 transitions. [2023-12-19 03:42:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:42:20,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 340 [2023-12-19 03:42:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:20,814 INFO L225 Difference]: With dead ends: 33049 [2023-12-19 03:42:20,815 INFO L226 Difference]: Without dead ends: 21031 [2023-12-19 03:42:20,836 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:42:20,837 INFO L413 NwaCegarLoop]: 1376 mSDtfsCounter, 667 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:20,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 1383 Invalid, 3082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 2721 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 03:42:20,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21031 states. [2023-12-19 03:42:20,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21031 to 18778. [2023-12-19 03:42:21,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18778 states, 18777 states have (on average 1.1468818235074825) internal successors, (21535), 18777 states have internal predecessors, (21535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:21,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18778 states to 18778 states and 21535 transitions. [2023-12-19 03:42:21,032 INFO L78 Accepts]: Start accepts. Automaton has 18778 states and 21535 transitions. Word has length 340 [2023-12-19 03:42:21,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:21,033 INFO L495 AbstractCegarLoop]: Abstraction has 18778 states and 21535 transitions. [2023-12-19 03:42:21,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:21,033 INFO L276 IsEmpty]: Start isEmpty. Operand 18778 states and 21535 transitions. [2023-12-19 03:42:21,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-12-19 03:42:21,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:21,037 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:21,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 03:42:21,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:21,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2024768489, now seen corresponding path program 1 times [2023-12-19 03:42:21,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:21,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438247264] [2023-12-19 03:42:21,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:21,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-19 03:42:21,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:21,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438247264] [2023-12-19 03:42:21,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438247264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:21,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:21,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:21,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092988060] [2023-12-19 03:42:21,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:21,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:21,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:21,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:21,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:21,290 INFO L87 Difference]: Start difference. First operand 18778 states and 21535 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:23,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:23,607 INFO L93 Difference]: Finished difference Result 45816 states and 53207 transitions. [2023-12-19 03:42:23,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:42:23,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2023-12-19 03:42:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:23,652 INFO L225 Difference]: With dead ends: 45816 [2023-12-19 03:42:23,652 INFO L226 Difference]: Without dead ends: 27039 [2023-12-19 03:42:23,673 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:42:23,674 INFO L413 NwaCegarLoop]: 1194 mSDtfsCounter, 704 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:23,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1201 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 03:42:23,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27039 states. [2023-12-19 03:42:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27039 to 27039. [2023-12-19 03:42:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27039 states, 27038 states have (on average 1.1244174865004808) internal successors, (30402), 27038 states have internal predecessors, (30402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:23,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27039 states to 27039 states and 30402 transitions. [2023-12-19 03:42:23,960 INFO L78 Accepts]: Start accepts. Automaton has 27039 states and 30402 transitions. Word has length 344 [2023-12-19 03:42:23,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:23,961 INFO L495 AbstractCegarLoop]: Abstraction has 27039 states and 30402 transitions. [2023-12-19 03:42:23,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:23,961 INFO L276 IsEmpty]: Start isEmpty. Operand 27039 states and 30402 transitions. [2023-12-19 03:42:23,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-12-19 03:42:23,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:23,969 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:23,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 03:42:23,970 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:23,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:23,970 INFO L85 PathProgramCache]: Analyzing trace with hash 797729337, now seen corresponding path program 1 times [2023-12-19 03:42:23,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:23,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178192070] [2023-12-19 03:42:23,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:23,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-19 03:42:24,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:24,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178192070] [2023-12-19 03:42:24,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178192070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:24,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:24,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:24,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809237372] [2023-12-19 03:42:24,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:24,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:24,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:24,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:24,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:24,392 INFO L87 Difference]: Start difference. First operand 27039 states and 30402 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:27,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:27,086 INFO L93 Difference]: Finished difference Result 76607 states and 86495 transitions. [2023-12-19 03:42:27,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:42:27,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2023-12-19 03:42:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:27,213 INFO L225 Difference]: With dead ends: 76607 [2023-12-19 03:42:27,214 INFO L226 Difference]: Without dead ends: 46565 [2023-12-19 03:42:27,245 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:42:27,250 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 747 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 2821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:27,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1291 Invalid, 2821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 03:42:27,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46565 states. [2023-12-19 03:42:27,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46565 to 45063. [2023-12-19 03:42:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45063 states, 45062 states have (on average 1.0967111979051085) internal successors, (49420), 45062 states have internal predecessors, (49420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:27,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45063 states to 45063 states and 49420 transitions. [2023-12-19 03:42:27,704 INFO L78 Accepts]: Start accepts. Automaton has 45063 states and 49420 transitions. Word has length 376 [2023-12-19 03:42:27,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:27,704 INFO L495 AbstractCegarLoop]: Abstraction has 45063 states and 49420 transitions. [2023-12-19 03:42:27,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:27,705 INFO L276 IsEmpty]: Start isEmpty. Operand 45063 states and 49420 transitions. [2023-12-19 03:42:27,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-12-19 03:42:27,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:27,933 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:27,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 03:42:27,933 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:27,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash -749810867, now seen corresponding path program 1 times [2023-12-19 03:42:27,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:27,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316172073] [2023-12-19 03:42:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:27,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:28,132 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-19 03:42:28,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:28,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316172073] [2023-12-19 03:42:28,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316172073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:28,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:28,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:28,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831434745] [2023-12-19 03:42:28,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:28,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:28,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:28,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:28,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:28,136 INFO L87 Difference]: Start difference. First operand 45063 states and 49420 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:30,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:30,733 INFO L93 Difference]: Finished difference Result 102892 states and 114219 transitions. [2023-12-19 03:42:30,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:42:30,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 383 [2023-12-19 03:42:30,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:30,816 INFO L225 Difference]: With dead ends: 102892 [2023-12-19 03:42:30,816 INFO L226 Difference]: Without dead ends: 57830 [2023-12-19 03:42:30,839 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:42:30,840 INFO L413 NwaCegarLoop]: 1262 mSDtfsCounter, 696 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2132 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 2813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:30,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1269 Invalid, 2813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2132 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 03:42:30,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57830 states. [2023-12-19 03:42:31,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57830 to 56328. [2023-12-19 03:42:31,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56328 states, 56327 states have (on average 1.0937028423313864) internal successors, (61605), 56327 states have internal predecessors, (61605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:31,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56328 states to 56328 states and 61605 transitions. [2023-12-19 03:42:31,829 INFO L78 Accepts]: Start accepts. Automaton has 56328 states and 61605 transitions. Word has length 383 [2023-12-19 03:42:31,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:31,830 INFO L495 AbstractCegarLoop]: Abstraction has 56328 states and 61605 transitions. [2023-12-19 03:42:31,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:31,830 INFO L276 IsEmpty]: Start isEmpty. Operand 56328 states and 61605 transitions. [2023-12-19 03:42:31,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2023-12-19 03:42:31,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:31,837 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:31,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 03:42:31,837 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:31,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:31,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1962421110, now seen corresponding path program 1 times [2023-12-19 03:42:31,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:31,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345395798] [2023-12-19 03:42:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:31,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-19 03:42:32,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:32,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345395798] [2023-12-19 03:42:32,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345395798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:32,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:32,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:32,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139974359] [2023-12-19 03:42:32,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:32,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:32,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:32,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:32,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:32,179 INFO L87 Difference]: Start difference. First operand 56328 states and 61605 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:34,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:34,521 INFO L93 Difference]: Finished difference Result 123920 states and 137091 transitions. [2023-12-19 03:42:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:42:34,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2023-12-19 03:42:34,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:34,610 INFO L225 Difference]: With dead ends: 123920 [2023-12-19 03:42:34,611 INFO L226 Difference]: Without dead ends: 67593 [2023-12-19 03:42:34,634 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:42:34,634 INFO L413 NwaCegarLoop]: 1252 mSDtfsCounter, 669 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2215 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 2659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:34,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 1259 Invalid, 2659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2215 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-19 03:42:34,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67593 states. [2023-12-19 03:42:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67593 to 66091. [2023-12-19 03:42:35,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66091 states, 66090 states have (on average 1.0885459222272658) internal successors, (71942), 66090 states have internal predecessors, (71942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66091 states to 66091 states and 71942 transitions. [2023-12-19 03:42:35,514 INFO L78 Accepts]: Start accepts. Automaton has 66091 states and 71942 transitions. Word has length 405 [2023-12-19 03:42:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:35,514 INFO L495 AbstractCegarLoop]: Abstraction has 66091 states and 71942 transitions. [2023-12-19 03:42:35,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 66091 states and 71942 transitions. [2023-12-19 03:42:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2023-12-19 03:42:35,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:35,522 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:35,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 03:42:35,523 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:35,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:35,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1850081940, now seen corresponding path program 1 times [2023-12-19 03:42:35,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:35,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015518242] [2023-12-19 03:42:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:35,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-12-19 03:42:35,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:35,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015518242] [2023-12-19 03:42:35,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015518242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:35,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:35,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:35,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844687685] [2023-12-19 03:42:35,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:35,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:35,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:35,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:35,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:35,886 INFO L87 Difference]: Start difference. First operand 66091 states and 71942 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:38,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:38,802 INFO L93 Difference]: Finished difference Result 158466 states and 173232 transitions. [2023-12-19 03:42:38,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:42:38,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 466 [2023-12-19 03:42:38,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:38,926 INFO L225 Difference]: With dead ends: 158466 [2023-12-19 03:42:38,927 INFO L226 Difference]: Without dead ends: 92376 [2023-12-19 03:42:38,951 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:42:38,953 INFO L413 NwaCegarLoop]: 1116 mSDtfsCounter, 687 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:38,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1123 Invalid, 2928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 03:42:39,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92376 states. [2023-12-19 03:42:39,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92376 to 89372. [2023-12-19 03:42:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89372 states, 89371 states have (on average 1.0880934531335669) internal successors, (97244), 89371 states have internal predecessors, (97244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89372 states to 89372 states and 97244 transitions. [2023-12-19 03:42:39,914 INFO L78 Accepts]: Start accepts. Automaton has 89372 states and 97244 transitions. Word has length 466 [2023-12-19 03:42:39,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:39,926 INFO L495 AbstractCegarLoop]: Abstraction has 89372 states and 97244 transitions. [2023-12-19 03:42:39,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 89372 states and 97244 transitions. [2023-12-19 03:42:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2023-12-19 03:42:39,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:39,935 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:39,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 03:42:39,935 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:39,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:39,936 INFO L85 PathProgramCache]: Analyzing trace with hash 909624117, now seen corresponding path program 1 times [2023-12-19 03:42:39,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:39,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675138984] [2023-12-19 03:42:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:39,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 420 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:42:41,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:41,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675138984] [2023-12-19 03:42:41,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675138984] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:42:41,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834530997] [2023-12-19 03:42:41,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:41,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:42:41,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:42:41,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 03:42:41,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 03:42:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:41,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 03:42:41,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:42:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-12-19 03:42:42,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:42:42,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834530997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:42,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:42:42,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-12-19 03:42:42,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164210249] [2023-12-19 03:42:42,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:42,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:42:42,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:42,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:42:42,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 03:42:42,111 INFO L87 Difference]: Start difference. First operand 89372 states and 97244 transitions. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:46,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:46,302 INFO L93 Difference]: Finished difference Result 271869 states and 296688 transitions. [2023-12-19 03:42:46,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:42:46,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 480 [2023-12-19 03:42:46,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:46,528 INFO L225 Difference]: With dead ends: 271869 [2023-12-19 03:42:46,528 INFO L226 Difference]: Without dead ends: 182498 [2023-12-19 03:42:46,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 03:42:46,586 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1844 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4630 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 4630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:46,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 32 Invalid, 5254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 4630 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-19 03:42:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182498 states. [2023-12-19 03:42:48,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182498 to 180994. [2023-12-19 03:42:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180994 states, 180993 states have (on average 1.089246545446509) internal successors, (197146), 180993 states have internal predecessors, (197146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:49,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180994 states to 180994 states and 197146 transitions. [2023-12-19 03:42:49,171 INFO L78 Accepts]: Start accepts. Automaton has 180994 states and 197146 transitions. Word has length 480 [2023-12-19 03:42:49,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:49,171 INFO L495 AbstractCegarLoop]: Abstraction has 180994 states and 197146 transitions. [2023-12-19 03:42:49,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:49,172 INFO L276 IsEmpty]: Start isEmpty. Operand 180994 states and 197146 transitions. [2023-12-19 03:42:49,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2023-12-19 03:42:49,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:49,185 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:49,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 03:42:49,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-19 03:42:49,391 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:49,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:49,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1551813152, now seen corresponding path program 1 times [2023-12-19 03:42:49,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:49,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992530833] [2023-12-19 03:42:49,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:49,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 405 proven. 108 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2023-12-19 03:42:50,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:50,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992530833] [2023-12-19 03:42:50,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992530833] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:42:50,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598573157] [2023-12-19 03:42:50,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:50,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:42:50,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:42:50,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 03:42:50,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 03:42:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:50,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 03:42:50,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:42:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-19 03:42:50,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:42:50,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598573157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:50,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:42:50,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 03:42:50,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839600957] [2023-12-19 03:42:50,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:50,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:50,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:50,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:50,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:42:50,494 INFO L87 Difference]: Start difference. First operand 180994 states and 197146 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:53,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:42:53,897 INFO L93 Difference]: Finished difference Result 361987 states and 394291 transitions. [2023-12-19 03:42:53,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:42:53,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 526 [2023-12-19 03:42:53,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:42:54,184 INFO L225 Difference]: With dead ends: 361987 [2023-12-19 03:42:54,184 INFO L226 Difference]: Without dead ends: 180994 [2023-12-19 03:42:54,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:42:54,258 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 719 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 03:42:54,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 396 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 03:42:54,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180994 states. [2023-12-19 03:42:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180994 to 174235. [2023-12-19 03:42:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174235 states, 174234 states have (on average 1.060177692069286) internal successors, (184719), 174234 states have internal predecessors, (184719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:56,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174235 states to 174235 states and 184719 transitions. [2023-12-19 03:42:56,587 INFO L78 Accepts]: Start accepts. Automaton has 174235 states and 184719 transitions. Word has length 526 [2023-12-19 03:42:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:42:56,587 INFO L495 AbstractCegarLoop]: Abstraction has 174235 states and 184719 transitions. [2023-12-19 03:42:56,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:42:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 174235 states and 184719 transitions. [2023-12-19 03:42:56,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2023-12-19 03:42:56,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:42:56,611 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:42:56,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 03:42:56,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-19 03:42:56,817 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:42:56,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:42:56,817 INFO L85 PathProgramCache]: Analyzing trace with hash 653773221, now seen corresponding path program 1 times [2023-12-19 03:42:56,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:42:56,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782649142] [2023-12-19 03:42:56,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:42:56,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:42:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:42:57,261 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 640 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-19 03:42:57,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:42:57,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782649142] [2023-12-19 03:42:57,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782649142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:42:57,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:42:57,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:42:57,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866615716] [2023-12-19 03:42:57,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:42:57,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:42:57,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:42:57,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:42:57,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:42:57,263 INFO L87 Difference]: Start difference. First operand 174235 states and 184719 transitions. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:01,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:43:01,240 INFO L93 Difference]: Finished difference Result 452107 states and 481355 transitions. [2023-12-19 03:43:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:43:01,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 615 [2023-12-19 03:43:01,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:43:01,702 INFO L225 Difference]: With dead ends: 452107 [2023-12-19 03:43:01,702 INFO L226 Difference]: Without dead ends: 277873 [2023-12-19 03:43:01,804 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:43:01,804 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 532 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:43:01,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 496 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 03:43:02,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277873 states. [2023-12-19 03:43:04,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277873 to 274118. [2023-12-19 03:43:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274118 states, 274117 states have (on average 1.0566546401718975) internal successors, (289647), 274117 states have internal predecessors, (289647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274118 states to 274118 states and 289647 transitions. [2023-12-19 03:43:05,641 INFO L78 Accepts]: Start accepts. Automaton has 274118 states and 289647 transitions. Word has length 615 [2023-12-19 03:43:05,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:43:05,641 INFO L495 AbstractCegarLoop]: Abstraction has 274118 states and 289647 transitions. [2023-12-19 03:43:05,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 274118 states and 289647 transitions. [2023-12-19 03:43:05,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2023-12-19 03:43:05,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:43:05,670 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:43:05,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 03:43:05,670 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:43:05,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:43:05,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1166912403, now seen corresponding path program 1 times [2023-12-19 03:43:05,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:43:05,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255076900] [2023-12-19 03:43:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:43:05,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:43:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:43:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 853 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-12-19 03:43:06,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:43:06,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255076900] [2023-12-19 03:43:06,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255076900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:43:06,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:43:06,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:43:06,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851600718] [2023-12-19 03:43:06,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:43:06,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:43:06,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:43:06,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:43:06,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:43:06,274 INFO L87 Difference]: Start difference. First operand 274118 states and 289647 transitions. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:10,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:43:10,627 INFO L93 Difference]: Finished difference Result 621833 states and 659065 transitions. [2023-12-19 03:43:10,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:43:10,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 617 [2023-12-19 03:43:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:43:11,405 INFO L225 Difference]: With dead ends: 621833 [2023-12-19 03:43:11,405 INFO L226 Difference]: Without dead ends: 347716 [2023-12-19 03:43:11,613 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:43:11,613 INFO L413 NwaCegarLoop]: 1251 mSDtfsCounter, 691 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:43:11,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1258 Invalid, 2815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 03:43:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347716 states. [2023-12-19 03:43:15,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347716 to 329692. [2023-12-19 03:43:15,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329692 states, 329691 states have (on average 1.0516574610771905) internal successors, (346722), 329691 states have internal predecessors, (346722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:16,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329692 states to 329692 states and 346722 transitions. [2023-12-19 03:43:16,440 INFO L78 Accepts]: Start accepts. Automaton has 329692 states and 346722 transitions. Word has length 617 [2023-12-19 03:43:16,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:43:16,440 INFO L495 AbstractCegarLoop]: Abstraction has 329692 states and 346722 transitions. [2023-12-19 03:43:16,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:16,440 INFO L276 IsEmpty]: Start isEmpty. Operand 329692 states and 346722 transitions. [2023-12-19 03:43:16,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2023-12-19 03:43:16,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:43:16,460 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:43:16,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 03:43:16,461 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:43:16,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:43:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash 7509497, now seen corresponding path program 1 times [2023-12-19 03:43:16,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:43:16,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292429653] [2023-12-19 03:43:16,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:43:16,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:43:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:43:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 700 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-12-19 03:43:16,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:43:16,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292429653] [2023-12-19 03:43:16,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292429653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:43:16,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:43:16,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:43:16,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617463896] [2023-12-19 03:43:16,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:43:16,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:43:16,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:43:16,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:43:16,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:43:16,926 INFO L87 Difference]: Start difference. First operand 329692 states and 346722 transitions. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:21,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:43:21,464 INFO L93 Difference]: Finished difference Result 675905 states and 710345 transitions. [2023-12-19 03:43:21,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:43:21,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 662 [2023-12-19 03:43:21,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:43:22,095 INFO L225 Difference]: With dead ends: 675905 [2023-12-19 03:43:22,095 INFO L226 Difference]: Without dead ends: 346214 [2023-12-19 03:43:22,212 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:43:22,213 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 550 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 03:43:22,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 223 Invalid, 2869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 03:43:22,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346214 states. [2023-12-19 03:43:25,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346214 to 325186. [2023-12-19 03:43:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325186 states, 325185 states have (on average 1.0503651767455449) internal successors, (341563), 325185 states have internal predecessors, (341563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325186 states to 325186 states and 341563 transitions. [2023-12-19 03:43:26,543 INFO L78 Accepts]: Start accepts. Automaton has 325186 states and 341563 transitions. Word has length 662 [2023-12-19 03:43:26,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:43:26,544 INFO L495 AbstractCegarLoop]: Abstraction has 325186 states and 341563 transitions. [2023-12-19 03:43:26,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:26,544 INFO L276 IsEmpty]: Start isEmpty. Operand 325186 states and 341563 transitions. [2023-12-19 03:43:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2023-12-19 03:43:26,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:43:26,570 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:43:26,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 03:43:26,570 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:43:26,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:43:26,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1544609351, now seen corresponding path program 1 times [2023-12-19 03:43:26,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:43:26,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323573564] [2023-12-19 03:43:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:43:26,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:43:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:43:27,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 1065 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-12-19 03:43:27,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:43:27,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323573564] [2023-12-19 03:43:27,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323573564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:43:27,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:43:27,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:43:27,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754630333] [2023-12-19 03:43:27,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:43:27,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:43:27,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:43:27,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:43:27,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:43:27,525 INFO L87 Difference]: Start difference. First operand 325186 states and 341563 transitions. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:31,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:43:31,451 INFO L93 Difference]: Finished difference Result 670648 states and 704015 transitions. [2023-12-19 03:43:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:43:31,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 728 [2023-12-19 03:43:31,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:43:32,212 INFO L225 Difference]: With dead ends: 670648 [2023-12-19 03:43:32,212 INFO L226 Difference]: Without dead ends: 345463 [2023-12-19 03:43:32,295 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:43:32,295 INFO L413 NwaCegarLoop]: 1266 mSDtfsCounter, 590 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 03:43:32,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 1273 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 03:43:32,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345463 states. [2023-12-19 03:43:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345463 to 338704. [2023-12-19 03:43:36,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338704 states, 338703 states have (on average 1.0486001009734192) internal successors, (355164), 338703 states have internal predecessors, (355164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:37,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338704 states to 338704 states and 355164 transitions. [2023-12-19 03:43:37,417 INFO L78 Accepts]: Start accepts. Automaton has 338704 states and 355164 transitions. Word has length 728 [2023-12-19 03:43:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:43:37,417 INFO L495 AbstractCegarLoop]: Abstraction has 338704 states and 355164 transitions. [2023-12-19 03:43:37,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 338704 states and 355164 transitions. [2023-12-19 03:43:37,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2023-12-19 03:43:37,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:43:37,455 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:43:37,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 03:43:37,456 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:43:37,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:43:37,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1915837215, now seen corresponding path program 1 times [2023-12-19 03:43:37,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:43:37,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001826318] [2023-12-19 03:43:37,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:43:37,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:43:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:43:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 949 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-12-19 03:43:38,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:43:38,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001826318] [2023-12-19 03:43:38,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001826318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:43:38,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:43:38,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:43:38,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139792513] [2023-12-19 03:43:38,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:43:38,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:43:38,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:43:38,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:43:38,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:43:38,102 INFO L87 Difference]: Start difference. First operand 338704 states and 355164 transitions. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:42,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:43:42,802 INFO L93 Difference]: Finished difference Result 693929 states and 727257 transitions. [2023-12-19 03:43:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:43:42,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 755 [2023-12-19 03:43:42,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:43:43,383 INFO L225 Difference]: With dead ends: 693929 [2023-12-19 03:43:43,383 INFO L226 Difference]: Without dead ends: 355226 [2023-12-19 03:43:43,526 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:43:43,526 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 721 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 2892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:43:43,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 213 Invalid, 2892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 03:43:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355226 states. [2023-12-19 03:43:46,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355226 to 336451. [2023-12-19 03:43:47,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336451 states, 336450 states have (on average 1.0476118293951553) internal successors, (352469), 336450 states have internal predecessors, (352469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:47,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336451 states to 336451 states and 352469 transitions. [2023-12-19 03:43:47,943 INFO L78 Accepts]: Start accepts. Automaton has 336451 states and 352469 transitions. Word has length 755 [2023-12-19 03:43:47,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:43:47,944 INFO L495 AbstractCegarLoop]: Abstraction has 336451 states and 352469 transitions. [2023-12-19 03:43:47,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:47,944 INFO L276 IsEmpty]: Start isEmpty. Operand 336451 states and 352469 transitions. [2023-12-19 03:43:47,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2023-12-19 03:43:47,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:43:47,977 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:43:47,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 03:43:47,977 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:43:47,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:43:47,977 INFO L85 PathProgramCache]: Analyzing trace with hash 661423078, now seen corresponding path program 1 times [2023-12-19 03:43:47,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:43:47,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748499668] [2023-12-19 03:43:47,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:43:47,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:43:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:43:48,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 1139 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-12-19 03:43:48,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:43:48,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748499668] [2023-12-19 03:43:48,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748499668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:43:48,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:43:48,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:43:48,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355996794] [2023-12-19 03:43:48,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:43:48,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:43:48,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:43:48,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:43:48,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:43:48,689 INFO L87 Difference]: Start difference. First operand 336451 states and 352469 transitions. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:52,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:43:52,715 INFO L93 Difference]: Finished difference Result 681162 states and 713397 transitions. [2023-12-19 03:43:52,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:43:52,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 765 [2023-12-19 03:43:52,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:43:53,281 INFO L225 Difference]: With dead ends: 681162 [2023-12-19 03:43:53,281 INFO L226 Difference]: Without dead ends: 344712 [2023-12-19 03:43:53,483 INFO L412 NwaCegarLoop]: 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 [2023-12-19 03:43:53,483 INFO L413 NwaCegarLoop]: 1232 mSDtfsCounter, 603 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 03:43:53,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1239 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 03:43:54,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344712 states. [2023-12-19 03:43:57,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344712 to 336451. [2023-12-19 03:43:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336451 states, 336450 states have (on average 1.0466161390994204) internal successors, (352134), 336450 states have internal predecessors, (352134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336451 states to 336451 states and 352134 transitions. [2023-12-19 03:43:58,414 INFO L78 Accepts]: Start accepts. Automaton has 336451 states and 352134 transitions. Word has length 765 [2023-12-19 03:43:58,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:43:58,415 INFO L495 AbstractCegarLoop]: Abstraction has 336451 states and 352134 transitions. [2023-12-19 03:43:58,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:43:58,415 INFO L276 IsEmpty]: Start isEmpty. Operand 336451 states and 352134 transitions. [2023-12-19 03:43:58,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2023-12-19 03:43:58,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:43:58,450 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:43:58,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 03:43:58,451 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:43:58,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:43:58,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2007209609, now seen corresponding path program 1 times [2023-12-19 03:43:58,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:43:58,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932690946] [2023-12-19 03:43:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:43:58,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:43:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:43:59,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1758 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-12-19 03:43:59,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:43:59,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932690946] [2023-12-19 03:43:59,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932690946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:43:59,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:43:59,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 03:43:59,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42826439] [2023-12-19 03:43:59,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:43:59,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:43:59,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:43:59,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:43:59,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:43:59,744 INFO L87 Difference]: Start difference. First operand 336451 states and 352134 transitions. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:44:04,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:44:04,950 INFO L93 Difference]: Finished difference Result 681162 states and 712775 transitions. [2023-12-19 03:44:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:44:04,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 784 [2023-12-19 03:44:04,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:44:05,865 INFO L225 Difference]: With dead ends: 681162 [2023-12-19 03:44:05,865 INFO L226 Difference]: Without dead ends: 344712 [2023-12-19 03:44:06,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:44:06,063 INFO L413 NwaCegarLoop]: 1274 mSDtfsCounter, 1323 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3906 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 4156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 3906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-19 03:44:06,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 1287 Invalid, 4156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 3906 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-19 03:44:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344712 states. [2023-12-19 03:44:09,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344712 to 343961. [2023-12-19 03:44:09,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343961 states, 343960 states have (on average 1.044496453075939) internal successors, (359265), 343960 states have internal predecessors, (359265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:44:10,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343961 states to 343961 states and 359265 transitions. [2023-12-19 03:44:10,586 INFO L78 Accepts]: Start accepts. Automaton has 343961 states and 359265 transitions. Word has length 784 [2023-12-19 03:44:10,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:44:10,586 INFO L495 AbstractCegarLoop]: Abstraction has 343961 states and 359265 transitions. [2023-12-19 03:44:10,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:44:10,587 INFO L276 IsEmpty]: Start isEmpty. Operand 343961 states and 359265 transitions. [2023-12-19 03:44:10,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2023-12-19 03:44:10,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:44:10,617 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:44:10,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 03:44:10,617 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:44:10,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:44:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash 811626749, now seen corresponding path program 1 times [2023-12-19 03:44:10,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:44:10,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312056034] [2023-12-19 03:44:10,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:44:10,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:44:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:44:11,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 1227 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-12-19 03:44:11,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:44:11,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312056034] [2023-12-19 03:44:11,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312056034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:44:11,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:44:11,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:44:11,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386910931] [2023-12-19 03:44:11,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:44:11,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:44:11,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:44:11,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:44:11,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:44:11,340 INFO L87 Difference]: Start difference. First operand 343961 states and 359265 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:44:15,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:44:15,499 INFO L93 Difference]: Finished difference Result 692427 states and 723075 transitions. [2023-12-19 03:44:15,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:44:15,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 792 [2023-12-19 03:44:15,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:44:16,029 INFO L225 Difference]: With dead ends: 692427 [2023-12-19 03:44:16,029 INFO L226 Difference]: Without dead ends: 346965 [2023-12-19 03:44:16,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:44:16,185 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 793 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 2630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 2119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 03:44:16,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 897 Invalid, 2630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 03:44:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346965 states. [2023-12-19 03:44:20,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346965 to 336451. [2023-12-19 03:44:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336451 states, 336450 states have (on average 1.0390518650616734) internal successors, (349589), 336450 states have internal predecessors, (349589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:44:20,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336451 states to 336451 states and 349589 transitions. [2023-12-19 03:44:20,990 INFO L78 Accepts]: Start accepts. Automaton has 336451 states and 349589 transitions. Word has length 792 [2023-12-19 03:44:20,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:44:20,991 INFO L495 AbstractCegarLoop]: Abstraction has 336451 states and 349589 transitions. [2023-12-19 03:44:20,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:44:20,991 INFO L276 IsEmpty]: Start isEmpty. Operand 336451 states and 349589 transitions. [2023-12-19 03:44:21,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2023-12-19 03:44:21,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:44:21,023 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:44:21,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 03:44:21,023 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:44:21,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:44:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash -2109614788, now seen corresponding path program 1 times [2023-12-19 03:44:21,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:44:21,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309443715] [2023-12-19 03:44:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:44:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:44:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:44:21,775 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 744 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-12-19 03:44:21,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:44:21,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309443715] [2023-12-19 03:44:21,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309443715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:44:21,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:44:21,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 03:44:21,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170111308] [2023-12-19 03:44:21,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:44:21,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:44:21,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:44:21,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:44:21,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:44:21,779 INFO L87 Difference]: Start difference. First operand 336451 states and 349589 transitions. Second operand has 4 states, 4 states have (on average 173.25) internal successors, (693), 4 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:44:27,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:44:27,537 INFO L93 Difference]: Finished difference Result 705945 states and 733401 transitions. [2023-12-19 03:44:27,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:44:27,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 173.25) internal successors, (693), 4 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 827 [2023-12-19 03:44:27,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:44:28,124 INFO L225 Difference]: With dead ends: 705945 [2023-12-19 03:44:28,125 INFO L226 Difference]: Without dead ends: 367993 [2023-12-19 03:44:28,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:44:28,616 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1045 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 4488 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 5320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 4488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-19 03:44:28,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 306 Invalid, 5320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 4488 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-19 03:44:28,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367993 states. [2023-12-19 03:44:32,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367993 to 341708. [2023-12-19 03:44:32,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341708 states, 341707 states have (on average 1.0345266558776964) internal successors, (353505), 341707 states have internal predecessors, (353505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)