/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:15:46,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:15:46,209 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:15:46,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:15:46,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:15:46,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:15:46,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:15:46,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:15:46,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:15:46,249 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:15:46,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:15:46,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:15:46,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:15:46,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:15:46,251 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:15:46,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:15:46,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:15:46,252 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:15:46,252 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:15:46,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:15:46,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:15:46,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:15:46,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:15:46,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:15:46,254 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:15:46,254 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:15:46,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:15:46,254 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:15:46,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:15:46,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:15:46,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:15:46,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:15:46,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:15:46,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:15:46,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:15:46,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:15:46,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:15:46,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:15:46,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:15:46,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:15:46,257 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:15:46,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:15:46,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:15:46,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:15:46,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:15:46,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:15:46,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:15:46,471 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:15:46,472 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:15:46,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label46.c [2023-12-16 02:15:47,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:15:47,915 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:15:47,916 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label46.c [2023-12-16 02:15:47,940 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/224f111a4/698014391eef47ed834db4472a3a881e/FLAGba5a8bf82 [2023-12-16 02:15:47,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/224f111a4/698014391eef47ed834db4472a3a881e [2023-12-16 02:15:47,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:15:47,956 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:15:47,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:15:47,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:15:47,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:15:47,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:15:47" (1/1) ... [2023-12-16 02:15:47,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf152b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:47, skipping insertion in model container [2023-12-16 02:15:47,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:15:47" (1/1) ... [2023-12-16 02:15:48,029 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:15:48,176 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/Problem17_label46.c[1649,1662] [2023-12-16 02:15:48,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:15:48,629 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:15:48,646 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/Problem17_label46.c[1649,1662] [2023-12-16 02:15:48,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:15:48,842 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:15:48,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48 WrapperNode [2023-12-16 02:15:48,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:15:48,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:15:48,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:15:48,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:15:48,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:48,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,097 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2023-12-16 02:15:49,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:15:49,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:15:49,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:15:49,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:15:49,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,218 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]. [2023-12-16 02:15:49,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:15:49,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:15:49,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:15:49,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:15:49,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (1/1) ... [2023-12-16 02:15:49,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:15:49,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:15:49,572 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) [2023-12-16 02:15:49,577 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 [2023-12-16 02:15:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:15:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:15:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:15:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:15:49,656 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:15:49,657 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:15:52,226 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:15:52,272 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:15:52,273 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:15:52,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:15:52 BoogieIcfgContainer [2023-12-16 02:15:52,273 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:15:52,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:15:52,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:15:52,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:15:52,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:15:47" (1/3) ... [2023-12-16 02:15:52,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cab90bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:15:52, skipping insertion in model container [2023-12-16 02:15:52,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:48" (2/3) ... [2023-12-16 02:15:52,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cab90bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:15:52, skipping insertion in model container [2023-12-16 02:15:52,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:15:52" (3/3) ... [2023-12-16 02:15:52,279 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label46.c [2023-12-16 02:15:52,290 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:15:52,291 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:15:52,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:15:52,339 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;@7694f268, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:15:52,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:15:52,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:52,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-16 02:15:52,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:15:52,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:15:52,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:15:52,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:15:52,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1378608494, now seen corresponding path program 1 times [2023-12-16 02:15:52,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:15:52,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699283420] [2023-12-16 02:15:52,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:15:52,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:15:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:15:52,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:15:52,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:15:52,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699283420] [2023-12-16 02:15:52,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699283420] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:15:52,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:15:52,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:15:52,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285703670] [2023-12-16 02:15:52,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:15:52,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:15:52,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:15:52,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:15:52,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:15:52,482 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:52,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:15:52,527 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2023-12-16 02:15:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:15:52,529 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-16 02:15:52,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:15:52,538 INFO L225 Difference]: With dead ends: 1055 [2023-12-16 02:15:52,538 INFO L226 Difference]: Without dead ends: 526 [2023-12-16 02:15:52,542 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 [2023-12-16 02:15:52,544 INFO L413 NwaCegarLoop]: 935 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, 935 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 [2023-12-16 02:15:52,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:15:52,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-16 02:15:52,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-12-16 02:15:52,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2023-12-16 02:15:52,620 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 9 [2023-12-16 02:15:52,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:15:52,620 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2023-12-16 02:15:52,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:52,621 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2023-12-16 02:15:52,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-16 02:15:52,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:15:52,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:15:52,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 02:15:52,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:15:52,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:15:52,622 INFO L85 PathProgramCache]: Analyzing trace with hash 462795106, now seen corresponding path program 1 times [2023-12-16 02:15:52,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:15:52,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022861611] [2023-12-16 02:15:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:15:52,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:15:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:15:52,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:15:52,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:15:52,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022861611] [2023-12-16 02:15:52,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022861611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:15:52,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:15:52,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:15:52,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263329162] [2023-12-16 02:15:52,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:15:52,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:15:52,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:15:52,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:15:52,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:15:52,676 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:15:55,357 INFO L93 Difference]: Finished difference Result 1499 states and 2693 transitions. [2023-12-16 02:15:55,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:15:55,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-16 02:15:55,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:15:55,363 INFO L225 Difference]: With dead ends: 1499 [2023-12-16 02:15:55,363 INFO L226 Difference]: Without dead ends: 974 [2023-12-16 02:15:55,367 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 [2023-12-16 02:15:55,368 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 464 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:15:55,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 495 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 02:15:55,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2023-12-16 02:15:55,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 971. [2023-12-16 02:15:55,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 1.5082474226804123) internal successors, (1463), 970 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1463 transitions. [2023-12-16 02:15:55,398 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1463 transitions. Word has length 9 [2023-12-16 02:15:55,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:15:55,399 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1463 transitions. [2023-12-16 02:15:55,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:55,399 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1463 transitions. [2023-12-16 02:15:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 02:15:55,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:15:55,401 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 02:15:55,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 02:15:55,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:15:55,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:15:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2144504430, now seen corresponding path program 1 times [2023-12-16 02:15:55,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:15:55,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760498311] [2023-12-16 02:15:55,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:15:55,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:15:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:15:55,557 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:15:55,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:15:55,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760498311] [2023-12-16 02:15:55,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760498311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:15:55,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:15:55,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:15:55,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787871547] [2023-12-16 02:15:55,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:15:55,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:15:55,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:15:55,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:15:55,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:15:55,559 INFO L87 Difference]: Start difference. First operand 971 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:57,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:15:57,268 INFO L93 Difference]: Finished difference Result 2813 states and 4241 transitions. [2023-12-16 02:15:57,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:15:57,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-12-16 02:15:57,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:15:57,273 INFO L225 Difference]: With dead ends: 2813 [2023-12-16 02:15:57,273 INFO L226 Difference]: Without dead ends: 1843 [2023-12-16 02:15:57,274 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 [2023-12-16 02:15:57,275 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 481 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:15:57,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 918 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 02:15:57,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2023-12-16 02:15:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1841. [2023-12-16 02:15:57,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1840 states have (on average 1.3603260869565217) internal successors, (2503), 1840 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:57,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2503 transitions. [2023-12-16 02:15:57,341 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2503 transitions. Word has length 79 [2023-12-16 02:15:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:15:57,345 INFO L495 AbstractCegarLoop]: Abstraction has 1841 states and 2503 transitions. [2023-12-16 02:15:57,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:57,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2503 transitions. [2023-12-16 02:15:57,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 02:15:57,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:15:57,354 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 02:15:57,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 02:15:57,354 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:15:57,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:15:57,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2101992081, now seen corresponding path program 1 times [2023-12-16 02:15:57,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:15:57,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824856625] [2023-12-16 02:15:57,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:15:57,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:15:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:15:57,645 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:15:57,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:15:57,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824856625] [2023-12-16 02:15:57,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824856625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:15:57,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:15:57,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:15:57,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413797567] [2023-12-16 02:15:57,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:15:57,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:15:57,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:15:57,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:15:57,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:15:57,659 INFO L87 Difference]: Start difference. First operand 1841 states and 2503 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:15:59,029 INFO L93 Difference]: Finished difference Result 5394 states and 7325 transitions. [2023-12-16 02:15:59,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:15:59,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-16 02:15:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:15:59,037 INFO L225 Difference]: With dead ends: 5394 [2023-12-16 02:15:59,037 INFO L226 Difference]: Without dead ends: 2700 [2023-12-16 02:15:59,038 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 [2023-12-16 02:15:59,039 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 368 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:15:59,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 589 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 02:15:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2023-12-16 02:15:59,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2700. [2023-12-16 02:15:59,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2699 states have (on average 1.1919229344201556) internal successors, (3217), 2699 states have internal predecessors, (3217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:59,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3217 transitions. [2023-12-16 02:15:59,104 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 3217 transitions. Word has length 101 [2023-12-16 02:15:59,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:15:59,120 INFO L495 AbstractCegarLoop]: Abstraction has 2700 states and 3217 transitions. [2023-12-16 02:15:59,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 3217 transitions. [2023-12-16 02:15:59,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 02:15:59,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:15:59,124 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-16 02:15:59,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 02:15:59,124 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:15:59,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:15:59,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1532868037, now seen corresponding path program 1 times [2023-12-16 02:15:59,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:15:59,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184003935] [2023-12-16 02:15:59,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:15:59,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:15:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:15:59,452 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:15:59,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:15:59,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184003935] [2023-12-16 02:15:59,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184003935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:15:59,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:15:59,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:15:59,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946151839] [2023-12-16 02:15:59,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:15:59,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:15:59,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:15:59,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:15:59,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:15:59,471 INFO L87 Difference]: Start difference. First operand 2700 states and 3217 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:00,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:00,788 INFO L93 Difference]: Finished difference Result 7107 states and 8597 transitions. [2023-12-16 02:16:00,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:00,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2023-12-16 02:16:00,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:00,799 INFO L225 Difference]: With dead ends: 7107 [2023-12-16 02:16:00,800 INFO L226 Difference]: Without dead ends: 4408 [2023-12-16 02:16:00,802 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 [2023-12-16 02:16:00,803 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 496 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:00,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 781 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 02:16:00,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2023-12-16 02:16:00,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4408. [2023-12-16 02:16:00,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4408 states, 4407 states have (on average 1.1706376219650556) internal successors, (5159), 4407 states have internal predecessors, (5159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4408 states to 4408 states and 5159 transitions. [2023-12-16 02:16:00,895 INFO L78 Accepts]: Start accepts. Automaton has 4408 states and 5159 transitions. Word has length 161 [2023-12-16 02:16:00,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:00,896 INFO L495 AbstractCegarLoop]: Abstraction has 4408 states and 5159 transitions. [2023-12-16 02:16:00,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:00,896 INFO L276 IsEmpty]: Start isEmpty. Operand 4408 states and 5159 transitions. [2023-12-16 02:16:00,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 02:16:00,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:00,898 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-16 02:16:00,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 02:16:00,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:00,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:00,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1116156032, now seen corresponding path program 1 times [2023-12-16 02:16:00,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:00,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256917868] [2023-12-16 02:16:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:00,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-16 02:16:01,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:01,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256917868] [2023-12-16 02:16:01,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256917868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:01,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:01,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:01,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974234] [2023-12-16 02:16:01,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:01,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:01,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:01,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:01,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:01,026 INFO L87 Difference]: Start difference. First operand 4408 states and 5159 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:02,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:02,627 INFO L93 Difference]: Finished difference Result 10935 states and 12969 transitions. [2023-12-16 02:16:02,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:02,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2023-12-16 02:16:02,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:02,643 INFO L225 Difference]: With dead ends: 10935 [2023-12-16 02:16:02,643 INFO L226 Difference]: Without dead ends: 6527 [2023-12-16 02:16:02,647 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 [2023-12-16 02:16:02,648 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 440 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:02,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 442 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 02:16:02,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6527 states. [2023-12-16 02:16:02,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6527 to 4381. [2023-12-16 02:16:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4381 states, 4380 states have (on average 1.1684931506849314) internal successors, (5118), 4380 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 5118 transitions. [2023-12-16 02:16:02,709 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 5118 transitions. Word has length 163 [2023-12-16 02:16:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:02,710 INFO L495 AbstractCegarLoop]: Abstraction has 4381 states and 5118 transitions. [2023-12-16 02:16:02,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 5118 transitions. [2023-12-16 02:16:02,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-16 02:16:02,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:02,712 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-16 02:16:02,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 02:16:02,712 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:02,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:02,713 INFO L85 PathProgramCache]: Analyzing trace with hash -338158650, now seen corresponding path program 1 times [2023-12-16 02:16:02,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:02,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598041364] [2023-12-16 02:16:02,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:02,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 15 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:16:03,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:03,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598041364] [2023-12-16 02:16:03,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598041364] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:16:03,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329550287] [2023-12-16 02:16:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:03,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:16:03,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:16:03,039 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) [2023-12-16 02:16:03,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 02:16:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:03,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 02:16:03,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:16:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 15 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:16:03,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:16:03,588 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:16:03,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329550287] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 02:16:03,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:16:03,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2023-12-16 02:16:03,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150376206] [2023-12-16 02:16:03,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:03,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:16:03,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:03,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:16:03,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 02:16:03,590 INFO L87 Difference]: Start difference. First operand 4381 states and 5118 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:06,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:06,820 INFO L93 Difference]: Finished difference Result 16038 states and 18797 transitions. [2023-12-16 02:16:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:16:06,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 229 [2023-12-16 02:16:06,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:06,861 INFO L225 Difference]: With dead ends: 16038 [2023-12-16 02:16:06,861 INFO L226 Difference]: Without dead ends: 10803 [2023-12-16 02:16:06,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 02:16:06,881 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 792 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2582 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 3382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 2582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:06,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 147 Invalid, 3382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [800 Valid, 2582 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 02:16:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10803 states. [2023-12-16 02:16:06,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10803 to 9923. [2023-12-16 02:16:07,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9923 states, 9922 states have (on average 1.1543035678290667) internal successors, (11453), 9922 states have internal predecessors, (11453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:07,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9923 states to 9923 states and 11453 transitions. [2023-12-16 02:16:07,015 INFO L78 Accepts]: Start accepts. Automaton has 9923 states and 11453 transitions. Word has length 229 [2023-12-16 02:16:07,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:07,016 INFO L495 AbstractCegarLoop]: Abstraction has 9923 states and 11453 transitions. [2023-12-16 02:16:07,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:07,016 INFO L276 IsEmpty]: Start isEmpty. Operand 9923 states and 11453 transitions. [2023-12-16 02:16:07,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-16 02:16:07,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:07,018 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:07,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 02:16:07,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:16:07,224 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:07,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:07,224 INFO L85 PathProgramCache]: Analyzing trace with hash 126278507, now seen corresponding path program 1 times [2023-12-16 02:16:07,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:07,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400076105] [2023-12-16 02:16:07,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:07,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:07,370 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-16 02:16:07,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:07,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400076105] [2023-12-16 02:16:07,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400076105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:07,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:07,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:07,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171747127] [2023-12-16 02:16:07,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:07,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:07,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:07,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:07,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:07,372 INFO L87 Difference]: Start difference. First operand 9923 states and 11453 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:08,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:08,832 INFO L93 Difference]: Finished difference Result 24945 states and 29141 transitions. [2023-12-16 02:16:08,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:08,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have 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 [2023-12-16 02:16:08,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:08,882 INFO L225 Difference]: With dead ends: 24945 [2023-12-16 02:16:08,883 INFO L226 Difference]: Without dead ends: 14173 [2023-12-16 02:16:08,894 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 [2023-12-16 02:16:08,894 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 367 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:08,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 827 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 02:16:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14173 states. [2023-12-16 02:16:09,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14173 to 14173. [2023-12-16 02:16:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14173 states, 14172 states have (on average 1.1241885407846457) internal successors, (15932), 14172 states have internal predecessors, (15932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:09,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14173 states to 14173 states and 15932 transitions. [2023-12-16 02:16:09,207 INFO L78 Accepts]: Start accepts. Automaton has 14173 states and 15932 transitions. Word has length 258 [2023-12-16 02:16:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:09,208 INFO L495 AbstractCegarLoop]: Abstraction has 14173 states and 15932 transitions. [2023-12-16 02:16:09,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:09,208 INFO L276 IsEmpty]: Start isEmpty. Operand 14173 states and 15932 transitions. [2023-12-16 02:16:09,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-16 02:16:09,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:09,211 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 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] [2023-12-16 02:16:09,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 02:16:09,211 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:09,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:09,212 INFO L85 PathProgramCache]: Analyzing trace with hash -310433434, now seen corresponding path program 1 times [2023-12-16 02:16:09,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:09,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141653826] [2023-12-16 02:16:09,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:09,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-12-16 02:16:09,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:09,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141653826] [2023-12-16 02:16:09,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141653826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:09,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:09,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:09,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840899495] [2023-12-16 02:16:09,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:09,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:09,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:09,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:09,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:09,341 INFO L87 Difference]: Start difference. First operand 14173 states and 15932 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:11,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:11,038 INFO L93 Difference]: Finished difference Result 33879 states and 38361 transitions. [2023-12-16 02:16:11,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:11,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 281 [2023-12-16 02:16:11,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:11,084 INFO L225 Difference]: With dead ends: 33879 [2023-12-16 02:16:11,084 INFO L226 Difference]: Without dead ends: 17978 [2023-12-16 02:16:11,100 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 [2023-12-16 02:16:11,102 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 529 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:11,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 648 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 02:16:11,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17978 states. [2023-12-16 02:16:11,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17978 to 17122. [2023-12-16 02:16:11,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17122 states, 17121 states have (on average 1.1258688160738275) internal successors, (19276), 17121 states have internal predecessors, (19276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17122 states to 17122 states and 19276 transitions. [2023-12-16 02:16:11,315 INFO L78 Accepts]: Start accepts. Automaton has 17122 states and 19276 transitions. Word has length 281 [2023-12-16 02:16:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:11,316 INFO L495 AbstractCegarLoop]: Abstraction has 17122 states and 19276 transitions. [2023-12-16 02:16:11,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 17122 states and 19276 transitions. [2023-12-16 02:16:11,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-16 02:16:11,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:11,319 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-16 02:16:11,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 02:16:11,319 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:11,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:11,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1345695420, now seen corresponding path program 1 times [2023-12-16 02:16:11,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:11,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234262112] [2023-12-16 02:16:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-16 02:16:11,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:11,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234262112] [2023-12-16 02:16:11,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234262112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:11,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:11,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:11,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041501576] [2023-12-16 02:16:11,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:11,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:11,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:11,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:11,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:11,540 INFO L87 Difference]: Start difference. First operand 17122 states and 19276 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:13,294 INFO L93 Difference]: Finished difference Result 42769 states and 48178 transitions. [2023-12-16 02:16:13,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:13,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 303 [2023-12-16 02:16:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:13,327 INFO L225 Difference]: With dead ends: 42769 [2023-12-16 02:16:13,328 INFO L226 Difference]: Without dead ends: 25648 [2023-12-16 02:16:13,338 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 [2023-12-16 02:16:13,339 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 316 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:13,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 775 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 02:16:13,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25648 states. [2023-12-16 02:16:13,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25648 to 24361. [2023-12-16 02:16:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24361 states, 24360 states have (on average 1.110919540229885) internal successors, (27062), 24360 states have internal predecessors, (27062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:13,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24361 states to 24361 states and 27062 transitions. [2023-12-16 02:16:13,600 INFO L78 Accepts]: Start accepts. Automaton has 24361 states and 27062 transitions. Word has length 303 [2023-12-16 02:16:13,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:13,600 INFO L495 AbstractCegarLoop]: Abstraction has 24361 states and 27062 transitions. [2023-12-16 02:16:13,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 24361 states and 27062 transitions. [2023-12-16 02:16:13,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-12-16 02:16:13,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:13,605 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:13,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 02:16:13,605 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:13,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:13,606 INFO L85 PathProgramCache]: Analyzing trace with hash 2040895972, now seen corresponding path program 1 times [2023-12-16 02:16:13,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:13,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870810378] [2023-12-16 02:16:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:13,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-16 02:16:13,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:13,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870810378] [2023-12-16 02:16:13,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870810378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:13,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:13,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:13,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984100065] [2023-12-16 02:16:13,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:13,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:13,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:13,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:13,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:13,817 INFO L87 Difference]: Start difference. First operand 24361 states and 27062 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:15,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:15,283 INFO L93 Difference]: Finished difference Result 56822 states and 63399 transitions. [2023-12-16 02:16:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:15,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2023-12-16 02:16:15,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:15,326 INFO L225 Difference]: With dead ends: 56822 [2023-12-16 02:16:15,326 INFO L226 Difference]: Without dead ends: 32462 [2023-12-16 02:16:15,343 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 [2023-12-16 02:16:15,344 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 382 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:15,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 612 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 02:16:15,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32462 states. [2023-12-16 02:16:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32462 to 32028. [2023-12-16 02:16:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32028 states, 32027 states have (on average 1.1097511474693227) internal successors, (35542), 32027 states have internal predecessors, (35542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:15,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32028 states to 32028 states and 35542 transitions. [2023-12-16 02:16:15,672 INFO L78 Accepts]: Start accepts. Automaton has 32028 states and 35542 transitions. Word has length 334 [2023-12-16 02:16:15,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:15,938 INFO L495 AbstractCegarLoop]: Abstraction has 32028 states and 35542 transitions. [2023-12-16 02:16:15,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 32028 states and 35542 transitions. [2023-12-16 02:16:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-16 02:16:15,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:15,946 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:15,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 02:16:15,946 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:15,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:15,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1276064537, now seen corresponding path program 1 times [2023-12-16 02:16:15,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:15,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711530028] [2023-12-16 02:16:15,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:15,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:16,589 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 205 proven. 82 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 02:16:16,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:16,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711530028] [2023-12-16 02:16:16,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711530028] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:16:16,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186613702] [2023-12-16 02:16:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:16,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:16:16,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:16:16,606 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) [2023-12-16 02:16:16,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 02:16:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:16,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 02:16:16,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:16:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 205 proven. 82 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 02:16:16,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:16:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 287 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 02:16:17,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186613702] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 02:16:17,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:16:17,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2023-12-16 02:16:17,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699837460] [2023-12-16 02:16:17,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:17,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:16:17,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:17,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:16:17,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 02:16:17,180 INFO L87 Difference]: Start difference. First operand 32028 states and 35542 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:19,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:19,842 INFO L93 Difference]: Finished difference Result 79366 states and 88092 transitions. [2023-12-16 02:16:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:16:19,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2023-12-16 02:16:19,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:19,894 INFO L225 Difference]: With dead ends: 79366 [2023-12-16 02:16:19,894 INFO L226 Difference]: Without dead ends: 46914 [2023-12-16 02:16:19,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 02:16:19,903 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 784 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:19,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 118 Invalid, 2647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 02:16:19,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46914 states. [2023-12-16 02:16:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46914 to 45632. [2023-12-16 02:16:20,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45632 states, 45631 states have (on average 1.0990992965308672) internal successors, (50153), 45631 states have internal predecessors, (50153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:20,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45632 states to 45632 states and 50153 transitions. [2023-12-16 02:16:20,533 INFO L78 Accepts]: Start accepts. Automaton has 45632 states and 50153 transitions. Word has length 337 [2023-12-16 02:16:20,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:20,534 INFO L495 AbstractCegarLoop]: Abstraction has 45632 states and 50153 transitions. [2023-12-16 02:16:20,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 45632 states and 50153 transitions. [2023-12-16 02:16:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-12-16 02:16:20,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:20,537 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:20,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 02:16:20,743 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,SelfDestructingSolverStorable11 [2023-12-16 02:16:20,744 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:20,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:20,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1782263384, now seen corresponding path program 1 times [2023-12-16 02:16:20,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:20,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039841478] [2023-12-16 02:16:20,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:20,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:16:21,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:21,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039841478] [2023-12-16 02:16:21,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039841478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:21,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:21,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:21,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538194957] [2023-12-16 02:16:21,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:21,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:16:21,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:21,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:16:21,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:16:21,107 INFO L87 Difference]: Start difference. First operand 45632 states and 50153 transitions. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:23,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:23,604 INFO L93 Difference]: Finished difference Result 102780 states and 112857 transitions. [2023-12-16 02:16:23,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:16:23,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 348 [2023-12-16 02:16:23,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:23,670 INFO L225 Difference]: With dead ends: 102780 [2023-12-16 02:16:23,670 INFO L226 Difference]: Without dead ends: 56724 [2023-12-16 02:16:23,698 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 [2023-12-16 02:16:23,698 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 547 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:23,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 331 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 02:16:23,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56724 states. [2023-12-16 02:16:24,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56724 to 55851. [2023-12-16 02:16:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55851 states, 55850 states have (on average 1.0956848701880035) internal successors, (61194), 55850 states have internal predecessors, (61194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55851 states to 55851 states and 61194 transitions. [2023-12-16 02:16:24,686 INFO L78 Accepts]: Start accepts. Automaton has 55851 states and 61194 transitions. Word has length 348 [2023-12-16 02:16:24,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:24,687 INFO L495 AbstractCegarLoop]: Abstraction has 55851 states and 61194 transitions. [2023-12-16 02:16:24,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:24,687 INFO L276 IsEmpty]: Start isEmpty. Operand 55851 states and 61194 transitions. [2023-12-16 02:16:24,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-12-16 02:16:24,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:24,691 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:24,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 02:16:24,691 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:24,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:24,691 INFO L85 PathProgramCache]: Analyzing trace with hash -708207262, now seen corresponding path program 1 times [2023-12-16 02:16:24,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:24,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245249499] [2023-12-16 02:16:24,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:24,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-16 02:16:24,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:24,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245249499] [2023-12-16 02:16:24,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245249499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:24,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:24,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:24,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931250092] [2023-12-16 02:16:24,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:24,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:24,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:24,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:24,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:24,974 INFO L87 Difference]: Start difference. First operand 55851 states and 61194 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:26,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:26,890 INFO L93 Difference]: Finished difference Result 122802 states and 134890 transitions. [2023-12-16 02:16:26,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:26,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 352 [2023-12-16 02:16:26,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:26,979 INFO L225 Difference]: With dead ends: 122802 [2023-12-16 02:16:26,979 INFO L226 Difference]: Without dead ends: 67377 [2023-12-16 02:16:27,000 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 [2023-12-16 02:16:27,001 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 339 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:27,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 617 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 02:16:27,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67377 states. [2023-12-16 02:16:27,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67377 to 66080. [2023-12-16 02:16:27,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66080 states, 66079 states have (on average 1.099063242482483) internal successors, (72625), 66079 states have internal predecessors, (72625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:27,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66080 states to 66080 states and 72625 transitions. [2023-12-16 02:16:27,739 INFO L78 Accepts]: Start accepts. Automaton has 66080 states and 72625 transitions. Word has length 352 [2023-12-16 02:16:27,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:27,740 INFO L495 AbstractCegarLoop]: Abstraction has 66080 states and 72625 transitions. [2023-12-16 02:16:27,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:27,740 INFO L276 IsEmpty]: Start isEmpty. Operand 66080 states and 72625 transitions. [2023-12-16 02:16:27,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-16 02:16:27,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:27,747 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 02:16:27,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 02:16:27,747 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:27,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:27,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1159135552, now seen corresponding path program 1 times [2023-12-16 02:16:27,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:27,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659629715] [2023-12-16 02:16:27,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:27,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-16 02:16:28,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:28,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659629715] [2023-12-16 02:16:28,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659629715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:28,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:28,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:28,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244256273] [2023-12-16 02:16:28,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:28,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:28,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:28,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:28,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:28,151 INFO L87 Difference]: Start difference. First operand 66080 states and 72625 transitions. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:29,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:29,819 INFO L93 Difference]: Finished difference Result 146623 states and 161307 transitions. [2023-12-16 02:16:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:29,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 423 [2023-12-16 02:16:29,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:29,915 INFO L225 Difference]: With dead ends: 146623 [2023-12-16 02:16:29,915 INFO L226 Difference]: Without dead ends: 80969 [2023-12-16 02:16:29,962 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 [2023-12-16 02:16:29,963 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 304 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:29,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 318 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 02:16:30,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80969 states. [2023-12-16 02:16:30,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80969 to 76286. [2023-12-16 02:16:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76286 states, 76285 states have (on average 1.093229337353346) internal successors, (83397), 76285 states have internal predecessors, (83397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:31,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76286 states to 76286 states and 83397 transitions. [2023-12-16 02:16:31,167 INFO L78 Accepts]: Start accepts. Automaton has 76286 states and 83397 transitions. Word has length 423 [2023-12-16 02:16:31,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:31,167 INFO L495 AbstractCegarLoop]: Abstraction has 76286 states and 83397 transitions. [2023-12-16 02:16:31,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:31,168 INFO L276 IsEmpty]: Start isEmpty. Operand 76286 states and 83397 transitions. [2023-12-16 02:16:31,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2023-12-16 02:16:31,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:31,214 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 02:16:31,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 02:16:31,214 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:31,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:31,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1350454831, now seen corresponding path program 1 times [2023-12-16 02:16:31,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:31,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417802740] [2023-12-16 02:16:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:31,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-12-16 02:16:31,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:31,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417802740] [2023-12-16 02:16:31,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417802740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:31,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:31,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:31,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056451901] [2023-12-16 02:16:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:31,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:31,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:31,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:31,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:31,912 INFO L87 Difference]: Start difference. First operand 76286 states and 83397 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:33,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:33,578 INFO L93 Difference]: Finished difference Result 165774 states and 181663 transitions. [2023-12-16 02:16:33,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:33,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 472 [2023-12-16 02:16:33,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:33,720 INFO L225 Difference]: With dead ends: 165774 [2023-12-16 02:16:33,720 INFO L226 Difference]: Without dead ends: 89914 [2023-12-16 02:16:33,767 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 [2023-12-16 02:16:33,770 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 315 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:33,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 320 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 02:16:33,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89914 states. [2023-12-16 02:16:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89914 to 79686. [2023-12-16 02:16:34,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79686 states, 79685 states have (on average 1.0893769216289138) internal successors, (86807), 79685 states have internal predecessors, (86807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79686 states to 79686 states and 86807 transitions. [2023-12-16 02:16:35,101 INFO L78 Accepts]: Start accepts. Automaton has 79686 states and 86807 transitions. Word has length 472 [2023-12-16 02:16:35,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:35,101 INFO L495 AbstractCegarLoop]: Abstraction has 79686 states and 86807 transitions. [2023-12-16 02:16:35,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 79686 states and 86807 transitions. [2023-12-16 02:16:35,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2023-12-16 02:16:35,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:35,114 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 02:16:35,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 02:16:35,114 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:35,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:35,115 INFO L85 PathProgramCache]: Analyzing trace with hash 899989099, now seen corresponding path program 1 times [2023-12-16 02:16:35,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:35,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501424783] [2023-12-16 02:16:35,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:35,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2023-12-16 02:16:35,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:35,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501424783] [2023-12-16 02:16:35,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501424783] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:35,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:35,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:16:35,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647294745] [2023-12-16 02:16:35,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:35,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:35,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:35,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:35,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:35,503 INFO L87 Difference]: Start difference. First operand 79686 states and 86807 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 2 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:36,652 INFO L93 Difference]: Finished difference Result 154677 states and 168501 transitions. [2023-12-16 02:16:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:36,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 2 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 483 [2023-12-16 02:16:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:36,746 INFO L225 Difference]: With dead ends: 154677 [2023-12-16 02:16:36,746 INFO L226 Difference]: Without dead ends: 75416 [2023-12-16 02:16:36,780 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 [2023-12-16 02:16:36,781 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 567 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:36,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 78 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 02:16:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75416 states. [2023-12-16 02:16:37,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75416 to 75407. [2023-12-16 02:16:37,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75407 states, 75406 states have (on average 1.0884810227302868) internal successors, (82078), 75406 states have internal predecessors, (82078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:37,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75407 states to 75407 states and 82078 transitions. [2023-12-16 02:16:37,711 INFO L78 Accepts]: Start accepts. Automaton has 75407 states and 82078 transitions. Word has length 483 [2023-12-16 02:16:37,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:37,711 INFO L495 AbstractCegarLoop]: Abstraction has 75407 states and 82078 transitions. [2023-12-16 02:16:37,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 2 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:37,711 INFO L276 IsEmpty]: Start isEmpty. Operand 75407 states and 82078 transitions. [2023-12-16 02:16:37,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2023-12-16 02:16:37,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:37,723 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 02:16:37,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 02:16:37,723 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:37,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:37,724 INFO L85 PathProgramCache]: Analyzing trace with hash -293342258, now seen corresponding path program 1 times [2023-12-16 02:16:37,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:37,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154219809] [2023-12-16 02:16:37,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:37,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:38,213 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-12-16 02:16:38,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:38,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154219809] [2023-12-16 02:16:38,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154219809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:38,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:38,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 02:16:38,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602141650] [2023-12-16 02:16:38,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:38,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:16:38,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:38,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:16:38,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:16:38,215 INFO L87 Difference]: Start difference. First operand 75407 states and 82078 transitions. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:40,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:40,618 INFO L93 Difference]: Finished difference Result 159758 states and 173891 transitions. [2023-12-16 02:16:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:16:40,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 495 [2023-12-16 02:16:40,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:40,720 INFO L225 Difference]: With dead ends: 159758 [2023-12-16 02:16:40,720 INFO L226 Difference]: Without dead ends: 84777 [2023-12-16 02:16:40,761 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 [2023-12-16 02:16:40,761 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 784 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:40,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 217 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 02:16:40,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84777 states. [2023-12-16 02:16:41,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84777 to 78803. [2023-12-16 02:16:41,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78803 states, 78802 states have (on average 1.078449785538438) internal successors, (84984), 78802 states have internal predecessors, (84984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:41,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78803 states to 78803 states and 84984 transitions. [2023-12-16 02:16:41,776 INFO L78 Accepts]: Start accepts. Automaton has 78803 states and 84984 transitions. Word has length 495 [2023-12-16 02:16:41,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:41,777 INFO L495 AbstractCegarLoop]: Abstraction has 78803 states and 84984 transitions. [2023-12-16 02:16:41,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 78803 states and 84984 transitions. [2023-12-16 02:16:41,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-16 02:16:41,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:41,789 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 02:16:41,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 02:16:41,789 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:41,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:41,790 INFO L85 PathProgramCache]: Analyzing trace with hash 958857227, now seen corresponding path program 1 times [2023-12-16 02:16:41,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:41,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271924049] [2023-12-16 02:16:41,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:41,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:42,379 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-12-16 02:16:42,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:42,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271924049] [2023-12-16 02:16:42,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271924049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:42,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:42,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 02:16:42,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844064349] [2023-12-16 02:16:42,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:42,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:16:42,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:42,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:16:42,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:16:42,382 INFO L87 Difference]: Start difference. First operand 78803 states and 84984 transitions. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:45,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:45,126 INFO L93 Difference]: Finished difference Result 168693 states and 181660 transitions. [2023-12-16 02:16:45,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:16:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 501 [2023-12-16 02:16:45,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:45,240 INFO L225 Difference]: With dead ends: 168693 [2023-12-16 02:16:45,240 INFO L226 Difference]: Without dead ends: 90741 [2023-12-16 02:16:45,292 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 [2023-12-16 02:16:45,293 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 786 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2765 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 2935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 2765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:45,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 690 Invalid, 2935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 2765 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 02:16:45,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90741 states. [2023-12-16 02:16:46,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90741 to 80493. [2023-12-16 02:16:46,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80493 states, 80492 states have (on average 1.070118769567162) internal successors, (86136), 80492 states have internal predecessors, (86136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80493 states to 80493 states and 86136 transitions. [2023-12-16 02:16:46,669 INFO L78 Accepts]: Start accepts. Automaton has 80493 states and 86136 transitions. Word has length 501 [2023-12-16 02:16:46,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:46,670 INFO L495 AbstractCegarLoop]: Abstraction has 80493 states and 86136 transitions. [2023-12-16 02:16:46,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:46,670 INFO L276 IsEmpty]: Start isEmpty. Operand 80493 states and 86136 transitions. [2023-12-16 02:16:46,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2023-12-16 02:16:46,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:46,692 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:46,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 02:16:46,692 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:46,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:46,692 INFO L85 PathProgramCache]: Analyzing trace with hash -233757817, now seen corresponding path program 1 times [2023-12-16 02:16:46,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:46,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176262652] [2023-12-16 02:16:46,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:46,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 733 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2023-12-16 02:16:46,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:46,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176262652] [2023-12-16 02:16:46,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176262652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:46,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:46,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:46,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902965135] [2023-12-16 02:16:46,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:46,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:46,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:46,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:46,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:46,956 INFO L87 Difference]: Start difference. First operand 80493 states and 86136 transitions. Second operand has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 02:16:48,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:48,477 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 [2023-12-16 02:16:48,479 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 365 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:48,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 153 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 02:16:48,483 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:16:48,486 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:16:48,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 02:16:48,487 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (80493states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (68690 states constructed, input type IntersectNwa). [2023-12-16 02:16:48,492 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:48,494 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:16:48,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:16:48 BoogieIcfgContainer [2023-12-16 02:16:48,497 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:16:48,498 INFO L158 Benchmark]: Toolchain (without parser) took 60540.95ms. Allocated memory was 425.7MB in the beginning and 6.6GB in the end (delta: 6.2GB). Free memory was 360.8MB in the beginning and 4.6GB in the end (delta: -4.2GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-16 02:16:48,498 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 232.8MB. Free memory is still 180.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:16:48,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 884.89ms. Allocated memory is still 425.7MB. Free memory was 360.6MB in the beginning and 289.3MB in the end (delta: 71.3MB). Peak memory consumption was 72.3MB. Max. memory is 8.0GB. [2023-12-16 02:16:48,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 253.41ms. Allocated memory is still 425.7MB. Free memory was 289.3MB in the beginning and 225.3MB in the end (delta: 64.0MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-16 02:16:48,499 INFO L158 Benchmark]: Boogie Preprocessor took 437.75ms. Allocated memory is still 425.7MB. Free memory was 225.3MB in the beginning and 326.1MB in the end (delta: -100.8MB). Peak memory consumption was 136.7MB. Max. memory is 8.0GB. [2023-12-16 02:16:48,502 INFO L158 Benchmark]: RCFGBuilder took 2735.88ms. Allocated memory was 425.7MB in the beginning and 886.0MB in the end (delta: 460.3MB). Free memory was 326.1MB in the beginning and 681.2MB in the end (delta: -355.1MB). Peak memory consumption was 139.7MB. Max. memory is 8.0GB. [2023-12-16 02:16:48,502 INFO L158 Benchmark]: TraceAbstraction took 56222.00ms. Allocated memory was 886.0MB in the beginning and 6.6GB in the end (delta: 5.8GB). Free memory was 680.7MB in the beginning and 4.6GB in the end (delta: -3.9GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-12-16 02:16:48,506 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 232.8MB. Free memory is still 180.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 884.89ms. Allocated memory is still 425.7MB. Free memory was 360.6MB in the beginning and 289.3MB in the end (delta: 71.3MB). Peak memory consumption was 72.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 253.41ms. Allocated memory is still 425.7MB. Free memory was 289.3MB in the beginning and 225.3MB in the end (delta: 64.0MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 437.75ms. Allocated memory is still 425.7MB. Free memory was 225.3MB in the beginning and 326.1MB in the end (delta: -100.8MB). Peak memory consumption was 136.7MB. Max. memory is 8.0GB. * RCFGBuilder took 2735.88ms. Allocated memory was 425.7MB in the beginning and 886.0MB in the end (delta: 460.3MB). Free memory was 326.1MB in the beginning and 681.2MB in the end (delta: -355.1MB). Peak memory consumption was 139.7MB. Max. memory is 8.0GB. * TraceAbstraction took 56222.00ms. Allocated memory was 886.0MB in the beginning and 6.6GB in the end (delta: 5.8GB). Free memory was 680.7MB in the beginning and 4.6GB in the end (delta: -3.9GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 48). Cancelled while NwaCegarLoop was constructing difference of abstraction (80493states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (68690 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 528 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.2s, OverallIterations: 20, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 38.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9426 SdHoareTripleChecker+Valid, 32.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9426 mSDsluCounter, 10011 SdHoareTripleChecker+Invalid, 27.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 987 mSDsCounter, 5211 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28175 IncrementalHoareTripleChecker+Invalid, 33386 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5211 mSolverCounterUnsat, 9024 mSDtfsCounter, 28175 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1186 GetRequests, 1158 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80493occurred in iteration=19, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.8s AutomataMinimizationTime, 19 MinimizatonAttempts, 40202 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 6497 NumberOfCodeBlocks, 6497 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 7039 ConstructedInterpolants, 0 QuantifiedInterpolants, 16645 SizeOfPredicates, 0 NumberOfNonLiveVariables, 800 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 6249/6577 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown