/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_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:13:23,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:13:23,610 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 02:13:23,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:13:23,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:13:23,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:13:23,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:13:23,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:13:23,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:13:23,638 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:13:23,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:13:23,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:13:23,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:13:23,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:13:23,640 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:13:23,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:13:23,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:13:23,641 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:13:23,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:13:23,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:13:23,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:13:23,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:13:23,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:13:23,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:13:23,642 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:13:23,642 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:13:23,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:13:23,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:13:23,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:13:23,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:13:23,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:13:23,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:13:23,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:13:23,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:13:23,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:13:23,644 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:13:23,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:13:23,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:13:23,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:13:23,644 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:13:23,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:13:23,644 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:13:23,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:13:23,645 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:13:23,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:13:23,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:13:23,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:13:23,873 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:13:23,873 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:13:23,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label14.c [2023-12-16 02:13:24,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:13:25,065 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:13:25,066 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label14.c [2023-12-16 02:13:25,085 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1836986/07844ff720a741b492b9485b5d98073a/FLAGf859f38b7 [2023-12-16 02:13:25,095 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1836986/07844ff720a741b492b9485b5d98073a [2023-12-16 02:13:25,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:13:25,098 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:13:25,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:13:25,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:13:25,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:13:25,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:25,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dbeb24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25, skipping insertion in model container [2023-12-16 02:13:25,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:25,167 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:13:25,323 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_label14.c[6990,7003] [2023-12-16 02:13:25,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:13:25,645 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:13:25,658 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_label14.c[6990,7003] [2023-12-16 02:13:25,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:13:25,831 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:13:25,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25 WrapperNode [2023-12-16 02:13:25,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:13:25,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:13:25,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:13:25,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:13:25,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:25,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,044 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2023-12-16 02:13:26,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:13:26,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:13:26,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:13:26,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:13:26,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,216 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 02:13:26,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,394 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:13:26,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:13:26,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:13:26,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:13:26,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (1/1) ... [2023-12-16 02:13:26,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:13:26,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:13:26,454 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 02:13:26,473 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 02:13:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:13:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:13:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:13:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:13:26,534 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:13:26,536 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:13:28,966 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:13:28,995 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:13:28,996 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:13:28,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:13:28 BoogieIcfgContainer [2023-12-16 02:13:28,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:13:28,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:13:28,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:13:29,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:13:29,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:13:25" (1/3) ... [2023-12-16 02:13:29,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a16e3b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:13:29, skipping insertion in model container [2023-12-16 02:13:29,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:13:25" (2/3) ... [2023-12-16 02:13:29,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a16e3b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:13:29, skipping insertion in model container [2023-12-16 02:13:29,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:13:28" (3/3) ... [2023-12-16 02:13:29,001 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label14.c [2023-12-16 02:13:29,014 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:13:29,014 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:13:29,052 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:13:29,057 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;@1994285c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:13:29,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:13:29,061 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 02:13:29,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-16 02:13:29,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:29,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:13:29,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:29,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:29,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1875961542, now seen corresponding path program 1 times [2023-12-16 02:13:29,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:29,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573259735] [2023-12-16 02:13:29,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:29,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:29,216 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 02:13:29,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:29,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573259735] [2023-12-16 02:13:29,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573259735] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:13:29,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:13:29,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:13:29,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315417325] [2023-12-16 02:13:29,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:29,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:13:29,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:29,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:13:29,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:13:29,249 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 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 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 02:13:29,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:29,321 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2023-12-16 02:13:29,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:13:29,325 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-12-16 02:13:29,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:29,339 INFO L225 Difference]: With dead ends: 1055 [2023-12-16 02:13:29,340 INFO L226 Difference]: Without dead ends: 526 [2023-12-16 02:13:29,346 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 02:13:29,348 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 02:13:29,349 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 02:13:29,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-16 02:13:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-12-16 02:13:29,403 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 02:13:29,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2023-12-16 02:13:29,405 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 46 [2023-12-16 02:13:29,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:29,406 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2023-12-16 02:13:29,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 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 02:13:29,406 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2023-12-16 02:13:29,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-16 02:13:29,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:29,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:13:29,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 02:13:29,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:29,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:29,407 INFO L85 PathProgramCache]: Analyzing trace with hash -862707287, now seen corresponding path program 1 times [2023-12-16 02:13:29,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:29,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827927374] [2023-12-16 02:13:29,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:29,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:29,566 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 02:13:29,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:29,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827927374] [2023-12-16 02:13:29,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827927374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:13:29,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:13:29,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:13:29,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535542699] [2023-12-16 02:13:29,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:29,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:13:29,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:29,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:13:29,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:13:29,572 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 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 02:13:31,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:31,657 INFO L93 Difference]: Finished difference Result 1499 states and 2693 transitions. [2023-12-16 02:13:31,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:13:31,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-12-16 02:13:31,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:31,661 INFO L225 Difference]: With dead ends: 1499 [2023-12-16 02:13:31,661 INFO L226 Difference]: Without dead ends: 974 [2023-12-16 02:13:31,662 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 02:13:31,663 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 427 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 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, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:13:31,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 495 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 02:13:31,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2023-12-16 02:13:31,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 971. [2023-12-16 02:13:31,680 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 02:13:31,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1463 transitions. [2023-12-16 02:13:31,682 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1463 transitions. Word has length 46 [2023-12-16 02:13:31,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:31,683 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1463 transitions. [2023-12-16 02:13:31,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 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 02:13:31,683 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1463 transitions. [2023-12-16 02:13:31,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 02:13:31,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:31,689 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:13:31,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 02:13:31,690 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:31,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:31,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1191802020, now seen corresponding path program 1 times [2023-12-16 02:13:31,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:31,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508537518] [2023-12-16 02:13:31,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:31,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:13:31,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:31,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508537518] [2023-12-16 02:13:31,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508537518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:13:31,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:13:31,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:13:31,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219469559] [2023-12-16 02:13:31,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:31,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:13:31,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:31,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:13:31,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:13:31,960 INFO L87 Difference]: Start difference. First operand 971 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:13:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:33,871 INFO L93 Difference]: Finished difference Result 2813 states and 4241 transitions. [2023-12-16 02:13:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:13:33,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-16 02:13:33,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:33,878 INFO L225 Difference]: With dead ends: 2813 [2023-12-16 02:13:33,878 INFO L226 Difference]: Without dead ends: 1843 [2023-12-16 02:13:33,879 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 02:13:33,879 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 444 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 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, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 02:13:33,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 918 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 02:13:33,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2023-12-16 02:13:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1841. [2023-12-16 02:13:33,905 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 02:13:33,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2503 transitions. [2023-12-16 02:13:33,909 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2503 transitions. Word has length 116 [2023-12-16 02:13:33,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:33,910 INFO L495 AbstractCegarLoop]: Abstraction has 1841 states and 2503 transitions. [2023-12-16 02:13:33,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:13:33,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2503 transitions. [2023-12-16 02:13:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 02:13:33,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:33,911 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 02:13:33,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 02:13:33,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:33,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:33,912 INFO L85 PathProgramCache]: Analyzing trace with hash -835249191, now seen corresponding path program 1 times [2023-12-16 02:13:33,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:33,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294853113] [2023-12-16 02:13:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:33,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:34,075 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:13:34,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:34,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294853113] [2023-12-16 02:13:34,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294853113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:13:34,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:13:34,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:13:34,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334979143] [2023-12-16 02:13:34,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:34,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:13:34,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:34,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:13:34,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:13:34,078 INFO L87 Difference]: Start difference. First operand 1841 states and 2503 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 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 02:13:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:35,730 INFO L93 Difference]: Finished difference Result 5394 states and 7325 transitions. [2023-12-16 02:13:35,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:13:35,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-16 02:13:35,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:35,738 INFO L225 Difference]: With dead ends: 5394 [2023-12-16 02:13:35,738 INFO L226 Difference]: Without dead ends: 2700 [2023-12-16 02:13:35,740 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 02:13:35,741 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 368 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:13:35,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 589 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 02:13:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2023-12-16 02:13:35,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2700. [2023-12-16 02:13:35,766 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 02:13:35,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3217 transitions. [2023-12-16 02:13:35,771 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 3217 transitions. Word has length 138 [2023-12-16 02:13:35,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:35,772 INFO L495 AbstractCegarLoop]: Abstraction has 2700 states and 3217 transitions. [2023-12-16 02:13:35,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 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 02:13:35,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 3217 transitions. [2023-12-16 02:13:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-16 02:13:35,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:35,774 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 02:13:35,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 02:13:35,774 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:35,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:35,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1741610618, now seen corresponding path program 1 times [2023-12-16 02:13:35,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:35,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697840491] [2023-12-16 02:13:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:35,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:13:35,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:35,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697840491] [2023-12-16 02:13:35,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697840491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:13:35,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:13:35,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:13:35,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311722483] [2023-12-16 02:13:35,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:35,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:13:35,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:35,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:13:35,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:13:35,912 INFO L87 Difference]: Start difference. First operand 2700 states and 3217 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 02:13:37,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:37,295 INFO L93 Difference]: Finished difference Result 7107 states and 8597 transitions. [2023-12-16 02:13:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:13:37,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2023-12-16 02:13:37,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:37,306 INFO L225 Difference]: With dead ends: 7107 [2023-12-16 02:13:37,306 INFO L226 Difference]: Without dead ends: 4408 [2023-12-16 02:13:37,310 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 02:13:37,313 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 496 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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 02:13:37,314 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 02:13:37,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2023-12-16 02:13:37,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4408. [2023-12-16 02:13:37,365 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 02:13:37,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4408 states to 4408 states and 5159 transitions. [2023-12-16 02:13:37,370 INFO L78 Accepts]: Start accepts. Automaton has 4408 states and 5159 transitions. Word has length 198 [2023-12-16 02:13:37,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:37,371 INFO L495 AbstractCegarLoop]: Abstraction has 4408 states and 5159 transitions. [2023-12-16 02:13:37,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 02:13:37,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4408 states and 5159 transitions. [2023-12-16 02:13:37,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 02:13:37,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:37,373 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:13:37,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 02:13:37,373 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:37,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1550923691, now seen corresponding path program 1 times [2023-12-16 02:13:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:37,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744817412] [2023-12-16 02:13:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:37,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-16 02:13:37,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:37,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744817412] [2023-12-16 02:13:37,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744817412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:13:37,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:13:37,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:13:37,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753072404] [2023-12-16 02:13:37,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:37,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:13:37,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:37,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:13:37,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:13:37,479 INFO L87 Difference]: Start difference. First operand 4408 states and 5159 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 02:13:39,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:39,035 INFO L93 Difference]: Finished difference Result 10935 states and 12969 transitions. [2023-12-16 02:13:39,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:13:39,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2023-12-16 02:13:39,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:39,049 INFO L225 Difference]: With dead ends: 10935 [2023-12-16 02:13:39,049 INFO L226 Difference]: Without dead ends: 6527 [2023-12-16 02:13:39,052 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 02:13:39,053 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 403 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 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 02:13:39,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 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 02:13:39,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6527 states. [2023-12-16 02:13:39,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6527 to 4381. [2023-12-16 02:13:39,104 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 02:13:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 5118 transitions. [2023-12-16 02:13:39,110 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 5118 transitions. Word has length 200 [2023-12-16 02:13:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:39,110 INFO L495 AbstractCegarLoop]: Abstraction has 4381 states and 5118 transitions. [2023-12-16 02:13:39,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 02:13:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 5118 transitions. [2023-12-16 02:13:39,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-16 02:13:39,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:39,113 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:39,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 02:13:39,113 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:39,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:39,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2140280795, now seen corresponding path program 1 times [2023-12-16 02:13:39,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:39,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135173162] [2023-12-16 02:13:39,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:39,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-16 02:13:39,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:39,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135173162] [2023-12-16 02:13:39,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135173162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:13:39,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:13:39,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:13:39,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419817366] [2023-12-16 02:13:39,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:39,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:13:39,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:39,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:13:39,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:13:39,347 INFO L87 Difference]: Start difference. First operand 4381 states and 5118 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 02:13:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:40,904 INFO L93 Difference]: Finished difference Result 10909 states and 12923 transitions. [2023-12-16 02:13:40,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:13:40,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2023-12-16 02:13:40,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:40,918 INFO L225 Difference]: With dead ends: 10909 [2023-12-16 02:13:40,918 INFO L226 Difference]: Without dead ends: 6529 [2023-12-16 02:13:40,921 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 02:13:40,922 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 457 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:13:40,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 411 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 02:13:40,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6529 states. [2023-12-16 02:13:40,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6529 to 6095. [2023-12-16 02:13:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6095 states, 6094 states have (on average 1.1885461109287825) internal successors, (7243), 6094 states have internal predecessors, (7243), 0 states have call successors, (0), 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 02:13:40,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6095 states to 6095 states and 7243 transitions. [2023-12-16 02:13:40,987 INFO L78 Accepts]: Start accepts. Automaton has 6095 states and 7243 transitions. Word has length 266 [2023-12-16 02:13:40,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:40,987 INFO L495 AbstractCegarLoop]: Abstraction has 6095 states and 7243 transitions. [2023-12-16 02:13:40,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 02:13:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand 6095 states and 7243 transitions. [2023-12-16 02:13:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-16 02:13:40,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:40,990 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:13:40,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 02:13:40,990 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:40,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:40,991 INFO L85 PathProgramCache]: Analyzing trace with hash 991981609, now seen corresponding path program 1 times [2023-12-16 02:13:40,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:40,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039399492] [2023-12-16 02:13:40,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:40,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:41,233 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-16 02:13:41,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:41,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039399492] [2023-12-16 02:13:41,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039399492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:13:41,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:13:41,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:13:41,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284583274] [2023-12-16 02:13:41,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:41,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:13:41,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:41,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:13:41,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:13:41,235 INFO L87 Difference]: Start difference. First operand 6095 states and 7243 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 02:13:42,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:42,899 INFO L93 Difference]: Finished difference Result 15621 states and 18731 transitions. [2023-12-16 02:13:42,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:13:42,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2023-12-16 02:13:42,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:42,919 INFO L225 Difference]: With dead ends: 15621 [2023-12-16 02:13:42,919 INFO L226 Difference]: Without dead ends: 8652 [2023-12-16 02:13:42,929 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 02:13:42,929 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 492 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:13:42,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 625 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 02:13:42,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8652 states. [2023-12-16 02:13:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8652 to 8221. [2023-12-16 02:13:43,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8221 states, 8220 states have (on average 1.1763990267639903) internal successors, (9670), 8220 states have internal predecessors, (9670), 0 states have call successors, (0), 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 02:13:43,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8221 states to 8221 states and 9670 transitions. [2023-12-16 02:13:43,046 INFO L78 Accepts]: Start accepts. Automaton has 8221 states and 9670 transitions. Word has length 278 [2023-12-16 02:13:43,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:43,047 INFO L495 AbstractCegarLoop]: Abstraction has 8221 states and 9670 transitions. [2023-12-16 02:13:43,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 02:13:43,047 INFO L276 IsEmpty]: Start isEmpty. Operand 8221 states and 9670 transitions. [2023-12-16 02:13:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-16 02:13:43,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:43,051 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2023-12-16 02:13:43,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 02:13:43,051 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:43,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:43,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1299949409, now seen corresponding path program 1 times [2023-12-16 02:13:43,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:43,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108807684] [2023-12-16 02:13:43,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:43,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-16 02:13:43,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:43,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108807684] [2023-12-16 02:13:43,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108807684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:13:43,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:13:43,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 02:13:43,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877610202] [2023-12-16 02:13:43,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:43,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:13:43,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:43,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:13:43,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:13:43,504 INFO L87 Difference]: Start difference. First operand 8221 states and 9670 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 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 02:13:46,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:46,180 INFO L93 Difference]: Finished difference Result 30138 states and 35483 transitions. [2023-12-16 02:13:46,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:13:46,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2023-12-16 02:13:46,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:46,208 INFO L225 Difference]: With dead ends: 30138 [2023-12-16 02:13:46,208 INFO L226 Difference]: Without dead ends: 21063 [2023-12-16 02:13:46,220 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 02:13:46,224 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 859 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 2649 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 3060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 2649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:13:46,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 269 Invalid, 3060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 2649 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 02:13:46,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21063 states. [2023-12-16 02:13:46,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21063 to 20595. [2023-12-16 02:13:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20595 states, 20594 states have (on average 1.1576187239001652) internal successors, (23840), 20594 states have internal predecessors, (23840), 0 states have call successors, (0), 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 02:13:46,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20595 states to 20595 states and 23840 transitions. [2023-12-16 02:13:46,479 INFO L78 Accepts]: Start accepts. Automaton has 20595 states and 23840 transitions. Word has length 306 [2023-12-16 02:13:46,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:46,480 INFO L495 AbstractCegarLoop]: Abstraction has 20595 states and 23840 transitions. [2023-12-16 02:13:46,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 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 02:13:46,480 INFO L276 IsEmpty]: Start isEmpty. Operand 20595 states and 23840 transitions. [2023-12-16 02:13:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-16 02:13:46,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:46,486 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:13:46,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 02:13:46,487 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:46,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:46,487 INFO L85 PathProgramCache]: Analyzing trace with hash -883229706, now seen corresponding path program 1 times [2023-12-16 02:13:46,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:46,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152493391] [2023-12-16 02:13:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:46,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 232 proven. 82 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 02:13:46,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:46,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152493391] [2023-12-16 02:13:46,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152493391] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:13:46,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128009325] [2023-12-16 02:13:46,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:46,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:13:46,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:13:46,828 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 02:13:46,833 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 02:13:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:46,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 02:13:46,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:13:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 206 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:13:47,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:13:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:13:47,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128009325] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 02:13:47,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:13:47,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 4] total 7 [2023-12-16 02:13:47,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212554690] [2023-12-16 02:13:47,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:13:47,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 02:13:47,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:47,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 02:13:47,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-12-16 02:13:47,739 INFO L87 Difference]: Start difference. First operand 20595 states and 23840 transitions. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 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 02:13:50,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:13:50,560 INFO L93 Difference]: Finished difference Result 62900 states and 72226 transitions. [2023-12-16 02:13:50,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 02:13:50,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 387 [2023-12-16 02:13:50,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:13:50,618 INFO L225 Difference]: With dead ends: 62900 [2023-12-16 02:13:50,618 INFO L226 Difference]: Without dead ends: 41454 [2023-12-16 02:13:50,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 769 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-12-16 02:13:50,640 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 1112 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 3092 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 3594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 3092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:13:50,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 174 Invalid, 3594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 3092 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 02:13:50,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41454 states. [2023-12-16 02:13:51,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41454 to 41440. [2023-12-16 02:13:51,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41440 states, 41439 states have (on average 1.1064938825743864) internal successors, (45852), 41439 states have internal predecessors, (45852), 0 states have call successors, (0), 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 02:13:51,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41440 states to 41440 states and 45852 transitions. [2023-12-16 02:13:51,115 INFO L78 Accepts]: Start accepts. Automaton has 41440 states and 45852 transitions. Word has length 387 [2023-12-16 02:13:51,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:13:51,116 INFO L495 AbstractCegarLoop]: Abstraction has 41440 states and 45852 transitions. [2023-12-16 02:13:51,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 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 02:13:51,116 INFO L276 IsEmpty]: Start isEmpty. Operand 41440 states and 45852 transitions. [2023-12-16 02:13:51,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-16 02:13:51,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:13:51,125 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2023-12-16 02:13:51,132 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 02:13:51,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-16 02:13:51,332 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:13:51,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:13:51,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1810051263, now seen corresponding path program 1 times [2023-12-16 02:13:51,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:13:51,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142307497] [2023-12-16 02:13:51,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:51,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:13:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:52,051 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 349 proven. 45 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-12-16 02:13:52,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:13:52,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142307497] [2023-12-16 02:13:52,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142307497] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:13:52,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616564370] [2023-12-16 02:13:52,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:13:52,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:13:52,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:13:52,053 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 02:13:52,080 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 02:13:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:13:52,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 02:13:52,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:13:52,557 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 419 proven. 82 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-12-16 02:13:52,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:13:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 419 proven. 82 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-12-16 02:13:53,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616564370] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 02:13:53,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 02:13:53,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2023-12-16 02:13:53,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734766333] [2023-12-16 02:13:53,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 02:13:53,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 02:13:53,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:13:53,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 02:13:53,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-16 02:13:53,149 INFO L87 Difference]: Start difference. First operand 41440 states and 45852 transitions. Second operand has 9 states, 9 states have (on average 82.11111111111111) internal successors, (739), 9 states have internal predecessors, (739), 0 states have call successors, (0), 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 02:14:02,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:14:02,847 INFO L93 Difference]: Finished difference Result 123384 states and 136526 transitions. [2023-12-16 02:14:02,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 02:14:02,848 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 82.11111111111111) internal successors, (739), 9 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 426 [2023-12-16 02:14:02,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:14:02,953 INFO L225 Difference]: With dead ends: 123384 [2023-12-16 02:14:02,953 INFO L226 Difference]: Without dead ends: 79388 [2023-12-16 02:14:02,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2023-12-16 02:14:02,989 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 7409 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 11021 mSolverCounterSat, 2050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7409 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 13071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2050 IncrementalHoareTripleChecker+Valid, 11021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:14:02,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7409 Valid, 336 Invalid, 13071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2050 Valid, 11021 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2023-12-16 02:14:03,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79388 states. [2023-12-16 02:14:03,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79388 to 64383. [2023-12-16 02:14:03,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64383 states, 64382 states have (on average 1.0930539591811377) internal successors, (70373), 64382 states have internal predecessors, (70373), 0 states have call successors, (0), 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 02:14:03,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64383 states to 64383 states and 70373 transitions. [2023-12-16 02:14:03,995 INFO L78 Accepts]: Start accepts. Automaton has 64383 states and 70373 transitions. Word has length 426 [2023-12-16 02:14:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:14:03,995 INFO L495 AbstractCegarLoop]: Abstraction has 64383 states and 70373 transitions. [2023-12-16 02:14:03,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 82.11111111111111) internal successors, (739), 9 states have internal predecessors, (739), 0 states have call successors, (0), 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 02:14:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 64383 states and 70373 transitions. [2023-12-16 02:14:04,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2023-12-16 02:14:04,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:14:04,015 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:14:04,020 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 02:14:04,220 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,SelfDestructingSolverStorable10 [2023-12-16 02:14:04,220 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:14:04,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:14:04,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1868855272, now seen corresponding path program 1 times [2023-12-16 02:14:04,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:14:04,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389826504] [2023-12-16 02:14:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:14:04,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:14:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:14:04,679 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 453 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-12-16 02:14:04,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:14:04,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389826504] [2023-12-16 02:14:04,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389826504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:14:04,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:14:04,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:14:04,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397307343] [2023-12-16 02:14:04,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:14:04,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:14:04,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:14:04,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:14:04,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:14:04,681 INFO L87 Difference]: Start difference. First operand 64383 states and 70373 transitions. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 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 02:14:06,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:14:06,400 INFO L93 Difference]: Finished difference Result 137700 states and 150636 transitions. [2023-12-16 02:14:06,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:14:06,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 525 [2023-12-16 02:14:06,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:14:06,488 INFO L225 Difference]: With dead ends: 137700 [2023-12-16 02:14:06,488 INFO L226 Difference]: Without dead ends: 72893 [2023-12-16 02:14:06,532 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 02:14:06,533 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 344 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:14:06,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 686 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 02:14:06,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72893 states. [2023-12-16 02:14:07,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72893 to 69904. [2023-12-16 02:14:07,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69904 states, 69903 states have (on average 1.0839592006065548) internal successors, (75772), 69903 states have internal predecessors, (75772), 0 states have call successors, (0), 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 02:14:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69904 states to 69904 states and 75772 transitions. [2023-12-16 02:14:07,407 INFO L78 Accepts]: Start accepts. Automaton has 69904 states and 75772 transitions. Word has length 525 [2023-12-16 02:14:07,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:14:07,408 INFO L495 AbstractCegarLoop]: Abstraction has 69904 states and 75772 transitions. [2023-12-16 02:14:07,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 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 02:14:07,408 INFO L276 IsEmpty]: Start isEmpty. Operand 69904 states and 75772 transitions. [2023-12-16 02:14:07,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2023-12-16 02:14:07,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:14:07,423 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:14:07,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 02:14:07,423 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:14:07,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:14:07,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2066765572, now seen corresponding path program 1 times [2023-12-16 02:14:07,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:14:07,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589657930] [2023-12-16 02:14:07,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:14:07,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:14:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:14:07,615 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-12-16 02:14:07,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:14:07,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589657930] [2023-12-16 02:14:07,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589657930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:14:07,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:14:07,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:14:07,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001552340] [2023-12-16 02:14:07,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:14:07,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:14:07,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:14:07,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:14:07,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:14:07,617 INFO L87 Difference]: Start difference. First operand 69904 states and 75772 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 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 02:14:09,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:14:09,131 INFO L93 Difference]: Finished difference Result 145330 states and 157390 transitions. [2023-12-16 02:14:09,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:14:09,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 533 [2023-12-16 02:14:09,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:14:09,219 INFO L225 Difference]: With dead ends: 145330 [2023-12-16 02:14:09,219 INFO L226 Difference]: Without dead ends: 75427 [2023-12-16 02:14:09,264 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 02:14:09,264 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 236 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:14:09,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 721 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 02:14:09,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75427 states. [2023-12-16 02:14:10,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75427 to 73300. [2023-12-16 02:14:10,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73300 states, 73299 states have (on average 1.075676339377072) internal successors, (78846), 73299 states have internal predecessors, (78846), 0 states have call successors, (0), 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 02:14:10,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73300 states to 73300 states and 78846 transitions. [2023-12-16 02:14:10,279 INFO L78 Accepts]: Start accepts. Automaton has 73300 states and 78846 transitions. Word has length 533 [2023-12-16 02:14:10,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:14:10,279 INFO L495 AbstractCegarLoop]: Abstraction has 73300 states and 78846 transitions. [2023-12-16 02:14:10,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 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 02:14:10,280 INFO L276 IsEmpty]: Start isEmpty. Operand 73300 states and 78846 transitions. [2023-12-16 02:14:10,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2023-12-16 02:14:10,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:14:10,317 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:10,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 02:14:10,317 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:14:10,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:14:10,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1977361089, now seen corresponding path program 1 times [2023-12-16 02:14:10,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:14:10,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099424603] [2023-12-16 02:14:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:14:10,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:14:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:14:10,752 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 408 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-12-16 02:14:10,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:14:10,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099424603] [2023-12-16 02:14:10,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099424603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:14:10,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:14:10,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:14:10,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634390915] [2023-12-16 02:14:10,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:14:10,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:14:10,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:14:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:14:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:14:10,755 INFO L87 Difference]: Start difference. First operand 73300 states and 78846 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 02:14:12,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:14:12,366 INFO L93 Difference]: Finished difference Result 153833 states and 165498 transitions. [2023-12-16 02:14:12,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:14:12,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 560 [2023-12-16 02:14:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:14:12,451 INFO L225 Difference]: With dead ends: 153833 [2023-12-16 02:14:12,451 INFO L226 Difference]: Without dead ends: 80534 [2023-12-16 02:14:12,493 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 02:14:12,494 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 484 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:14:12,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 655 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 02:14:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80534 states. [2023-12-16 02:14:13,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80534 to 80526. [2023-12-16 02:14:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80526 states, 80525 states have (on average 1.0707233778329712) internal successors, (86220), 80525 states have internal predecessors, (86220), 0 states have call successors, (0), 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 02:14:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80526 states to 80526 states and 86220 transitions. [2023-12-16 02:14:13,617 INFO L78 Accepts]: Start accepts. Automaton has 80526 states and 86220 transitions. Word has length 560 [2023-12-16 02:14:13,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:14:13,618 INFO L495 AbstractCegarLoop]: Abstraction has 80526 states and 86220 transitions. [2023-12-16 02:14:13,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 02:14:13,618 INFO L276 IsEmpty]: Start isEmpty. Operand 80526 states and 86220 transitions. [2023-12-16 02:14:13,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2023-12-16 02:14:13,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:14:13,636 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 02:14:13,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 02:14:13,636 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:14:13,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:14:13,637 INFO L85 PathProgramCache]: Analyzing trace with hash 646857579, now seen corresponding path program 1 times [2023-12-16 02:14:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:14:13,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420004368] [2023-12-16 02:14:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:14:13,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:14:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:14:14,230 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 521 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-12-16 02:14:14,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:14:14,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420004368] [2023-12-16 02:14:14,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420004368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:14:14,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:14:14,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 02:14:14,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787911840] [2023-12-16 02:14:14,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:14:14,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:14:14,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:14:14,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:14:14,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:14:14,232 INFO L87 Difference]: Start difference. First operand 80526 states and 86220 transitions. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 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 02:14:16,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:14:16,813 INFO L93 Difference]: Finished difference Result 176809 states and 189106 transitions. [2023-12-16 02:14:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:14:16,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 599 [2023-12-16 02:14:16,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:14:16,921 INFO L225 Difference]: With dead ends: 176809 [2023-12-16 02:14:16,921 INFO L226 Difference]: Without dead ends: 95434 [2023-12-16 02:14:16,966 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 02:14:16,967 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 680 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 02:14:16,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 172 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 02:14:17,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95434 states. [2023-12-16 02:14:17,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95434 to 86905. [2023-12-16 02:14:17,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86905 states, 86904 states have (on average 1.07179186228482) internal successors, (93143), 86904 states have internal predecessors, (93143), 0 states have call successors, (0), 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 02:14:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86905 states to 86905 states and 93143 transitions. [2023-12-16 02:14:18,024 INFO L78 Accepts]: Start accepts. Automaton has 86905 states and 93143 transitions. Word has length 599 [2023-12-16 02:14:18,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:14:18,024 INFO L495 AbstractCegarLoop]: Abstraction has 86905 states and 93143 transitions. [2023-12-16 02:14:18,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 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 02:14:18,025 INFO L276 IsEmpty]: Start isEmpty. Operand 86905 states and 93143 transitions. [2023-12-16 02:14:18,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2023-12-16 02:14:18,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:14:18,185 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:18,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 02:14:18,185 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:14:18,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:14:18,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1927911976, now seen corresponding path program 1 times [2023-12-16 02:14:18,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:14:18,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607778476] [2023-12-16 02:14:18,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:14:18,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:14:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:14:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 505 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-12-16 02:14:18,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:14:18,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607778476] [2023-12-16 02:14:18,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607778476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:14:18,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:14:18,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:14:18,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285005112] [2023-12-16 02:14:18,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:14:18,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:14:18,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:14:18,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:14:18,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:14:18,804 INFO L87 Difference]: Start difference. First operand 86905 states and 93143 transitions. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 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 02:14:20,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:14:20,359 INFO L93 Difference]: Finished difference Result 174661 states and 187171 transitions. [2023-12-16 02:14:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:14:20,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 610 [2023-12-16 02:14:20,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:14:20,567 INFO L225 Difference]: With dead ends: 174661 [2023-12-16 02:14:20,567 INFO L226 Difference]: Without dead ends: 87757 [2023-12-16 02:14:20,602 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 02:14:20,605 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 94 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:14:20,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 755 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 02:14:20,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87757 states. [2023-12-16 02:14:21,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87757 to 87756. [2023-12-16 02:14:21,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87756 states, 87755 states have (on average 1.0704119423394678) internal successors, (93934), 87755 states have internal predecessors, (93934), 0 states have call successors, (0), 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 02:14:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87756 states to 87756 states and 93934 transitions. [2023-12-16 02:14:21,504 INFO L78 Accepts]: Start accepts. Automaton has 87756 states and 93934 transitions. Word has length 610 [2023-12-16 02:14:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:14:21,504 INFO L495 AbstractCegarLoop]: Abstraction has 87756 states and 93934 transitions. [2023-12-16 02:14:21,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 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 02:14:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 87756 states and 93934 transitions. [2023-12-16 02:14:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2023-12-16 02:14:21,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:14:21,517 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:21,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 02:14:21,517 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:14:21,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:14:21,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1575299010, now seen corresponding path program 1 times [2023-12-16 02:14:21,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:14:21,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091534978] [2023-12-16 02:14:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:14:21,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:14:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:14:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 805 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-12-16 02:14:21,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:14:21,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091534978] [2023-12-16 02:14:21,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091534978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:14:21,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:14:21,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:14:21,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029231612] [2023-12-16 02:14:21,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:14:21,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:14:21,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:14:21,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:14:21,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:14:21,949 INFO L87 Difference]: Start difference. First operand 87756 states and 93934 transitions. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 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 02:14:23,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:14:23,218 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 02:14:23,219 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 252 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:14:23,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 198 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 02:14:23,220 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:14:23,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 02:14:23,221 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (87756states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (79689 states constructed, input type IntersectNwa). [2023-12-16 02:14:23,224 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:14:23,225 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:14:23,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:14:23 BoogieIcfgContainer [2023-12-16 02:14:23,226 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:14:23,227 INFO L158 Benchmark]: Toolchain (without parser) took 58128.94ms. Allocated memory was 195.0MB in the beginning and 5.0GB in the end (delta: 4.8GB). Free memory was 131.1MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 02:14:23,227 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 195.0MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:14:23,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 732.61ms. Allocated memory is still 195.0MB. Free memory was 130.7MB in the beginning and 62.5MB in the end (delta: 68.2MB). Peak memory consumption was 70.6MB. Max. memory is 8.0GB. [2023-12-16 02:14:23,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 211.69ms. Allocated memory was 195.0MB in the beginning and 280.0MB in the end (delta: 84.9MB). Free memory was 62.5MB in the beginning and 182.2MB in the end (delta: -119.8MB). Peak memory consumption was 24.4MB. Max. memory is 8.0GB. [2023-12-16 02:14:23,227 INFO L158 Benchmark]: Boogie Preprocessor took 388.61ms. Allocated memory is still 280.0MB. Free memory was 182.2MB in the beginning and 183.4MB in the end (delta: -1.1MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. [2023-12-16 02:14:23,228 INFO L158 Benchmark]: RCFGBuilder took 2562.34ms. Allocated memory was 280.0MB in the beginning and 503.3MB in the end (delta: 223.3MB). Free memory was 183.4MB in the beginning and 361.0MB in the end (delta: -177.6MB). Peak memory consumption was 212.9MB. Max. memory is 8.0GB. [2023-12-16 02:14:23,228 INFO L158 Benchmark]: TraceAbstraction took 54229.06ms. Allocated memory was 503.3MB in the beginning and 5.0GB in the end (delta: 4.5GB). Free memory was 360.5MB in the beginning and 3.6GB in the end (delta: -3.3GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 02:14:23,229 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 195.0MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 732.61ms. Allocated memory is still 195.0MB. Free memory was 130.7MB in the beginning and 62.5MB in the end (delta: 68.2MB). Peak memory consumption was 70.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 211.69ms. Allocated memory was 195.0MB in the beginning and 280.0MB in the end (delta: 84.9MB). Free memory was 62.5MB in the beginning and 182.2MB in the end (delta: -119.8MB). Peak memory consumption was 24.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 388.61ms. Allocated memory is still 280.0MB. Free memory was 182.2MB in the beginning and 183.4MB in the end (delta: -1.1MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2562.34ms. Allocated memory was 280.0MB in the beginning and 503.3MB in the end (delta: 223.3MB). Free memory was 183.4MB in the beginning and 361.0MB in the end (delta: -177.6MB). Peak memory consumption was 212.9MB. Max. memory is 8.0GB. * TraceAbstraction took 54229.06ms. Allocated memory was 503.3MB in the beginning and 5.0GB in the end (delta: 4.5GB). Free memory was 360.5MB in the beginning and 3.6GB in the end (delta: -3.3GB). Peak memory consumption was 1.5GB. 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: 159]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 159). Cancelled while NwaCegarLoop was constructing difference of abstraction (87756states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (79689 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 528 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.2s, OverallIterations: 17, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 38.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14557 SdHoareTripleChecker+Valid, 33.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14557 mSDsluCounter, 9162 SdHoareTripleChecker+Invalid, 28.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1170 mSDsCounter, 6386 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33245 IncrementalHoareTripleChecker+Invalid, 39631 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6386 mSolverCounterUnsat, 7992 mSDtfsCounter, 33245 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1691 GetRequests, 1653 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87756occurred in iteration=16, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 32157 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 6662 NumberOfCodeBlocks, 6662 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7454 ConstructedInterpolants, 0 QuantifiedInterpolants, 21556 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1086 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 8419/8863 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