/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/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:35:03,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:35:03,168 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 06:35:03,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:35:03,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:35:03,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:35:03,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:35:03,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:35:03,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:35:03,194 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:35:03,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:35:03,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:35:03,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:35:03,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:35:03,196 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:35:03,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:35:03,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:35:03,197 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:35:03,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:35:03,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:35:03,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:35:03,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:35:03,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:35:03,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:35:03,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:35:03,200 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:35:03,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:35:03,200 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:35:03,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:35:03,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:35:03,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:35:03,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:35:03,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:35:03,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:35:03,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:35:03,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:35:03,203 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:35:03,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:35:03,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:35:03,204 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:35:03,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:35:03,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:35:03,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:35:03,205 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:35:03,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:35:03,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:35:03,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:35:03,494 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:35:03,496 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:35:03,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2023-12-16 06:35:04,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:35:05,450 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:35:05,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2023-12-16 06:35:05,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1294ddd9/1ff40e53f765465694cbcc723f68a08e/FLAGb2b62d081 [2023-12-16 06:35:05,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1294ddd9/1ff40e53f765465694cbcc723f68a08e [2023-12-16 06:35:05,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:35:05,520 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:35:05,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:35:05,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:35:05,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:35:05,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:35:05" (1/1) ... [2023-12-16 06:35:05,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5386116d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:05, skipping insertion in model container [2023-12-16 06:35:05,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:35:05" (1/1) ... [2023-12-16 06:35:05,655 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:35:06,354 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[35223,35236] [2023-12-16 06:35:06,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:35:06,579 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:35:06,864 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[35223,35236] [2023-12-16 06:35:06,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:35:06,979 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:35:06,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06 WrapperNode [2023-12-16 06:35:06,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:35:06,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:35:06,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:35:06,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:35:06,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,125 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3073 [2023-12-16 06:35:07,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:35:07,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:35:07,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:35:07,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:35:07,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,196 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 06:35:07,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:35:07,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:35:07,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:35:07,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:35:07,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (1/1) ... [2023-12-16 06:35:07,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:35:07,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:35:07,346 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 06:35:07,376 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 06:35:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:35:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:35:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:35:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:35:07,621 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:35:07,623 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:35:09,452 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:35:09,507 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:35:09,507 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:35:09,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:35:09 BoogieIcfgContainer [2023-12-16 06:35:09,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:35:09,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:35:09,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:35:09,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:35:09,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:35:05" (1/3) ... [2023-12-16 06:35:09,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b855a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:35:09, skipping insertion in model container [2023-12-16 06:35:09,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:35:06" (2/3) ... [2023-12-16 06:35:09,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b855a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:35:09, skipping insertion in model container [2023-12-16 06:35:09,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:35:09" (3/3) ... [2023-12-16 06:35:09,515 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2023-12-16 06:35:09,532 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:35:09,532 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:35:09,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:35:09,605 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;@683cf037, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:35:09,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:35:09,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 788 states, 786 states have (on average 1.7849872773536897) internal successors, (1403), 787 states have internal predecessors, (1403), 0 states have call successors, (0), 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 06:35:09,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-12-16 06:35:09,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:09,654 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:09,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:09,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:09,659 INFO L85 PathProgramCache]: Analyzing trace with hash -42614560, now seen corresponding path program 1 times [2023-12-16 06:35:09,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:09,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833706889] [2023-12-16 06:35:09,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:09,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:10,578 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 06:35:10,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:10,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833706889] [2023-12-16 06:35:10,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833706889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:10,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:10,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:10,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194632435] [2023-12-16 06:35:10,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:10,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:35:10,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:10,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:35:10,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:35:10,629 INFO L87 Difference]: Start difference. First operand has 788 states, 786 states have (on average 1.7849872773536897) internal successors, (1403), 787 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 06:35:10,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:10,874 INFO L93 Difference]: Finished difference Result 1419 states and 2499 transitions. [2023-12-16 06:35:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:35:10,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 319 [2023-12-16 06:35:10,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:10,901 INFO L225 Difference]: With dead ends: 1419 [2023-12-16 06:35:10,901 INFO L226 Difference]: Without dead ends: 1252 [2023-12-16 06:35:10,905 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 06:35:10,909 INFO L413 NwaCegarLoop]: 1338 mSDtfsCounter, 830 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:10,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2416 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:35:10,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2023-12-16 06:35:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2023-12-16 06:35:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.5652522017614092) internal successors, (1955), 1249 states have internal predecessors, (1955), 0 states have call successors, (0), 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 06:35:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1955 transitions. [2023-12-16 06:35:11,061 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1955 transitions. Word has length 319 [2023-12-16 06:35:11,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:11,067 INFO L495 AbstractCegarLoop]: Abstraction has 1250 states and 1955 transitions. [2023-12-16 06:35:11,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 06:35:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1955 transitions. [2023-12-16 06:35:11,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-12-16 06:35:11,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:11,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:11,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:35:11,076 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:11,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:11,077 INFO L85 PathProgramCache]: Analyzing trace with hash 127712625, now seen corresponding path program 1 times [2023-12-16 06:35:11,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:11,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326949150] [2023-12-16 06:35:11,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:11,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:12,313 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 06:35:12,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:12,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326949150] [2023-12-16 06:35:12,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326949150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:12,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:12,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:12,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061321319] [2023-12-16 06:35:12,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:12,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:35:12,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:35:12,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:35:12,324 INFO L87 Difference]: Start difference. First operand 1250 states and 1955 transitions. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 06:35:12,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:12,449 INFO L93 Difference]: Finished difference Result 3690 states and 5762 transitions. [2023-12-16 06:35:12,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:35:12,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 319 [2023-12-16 06:35:12,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:12,462 INFO L225 Difference]: With dead ends: 3690 [2023-12-16 06:35:12,462 INFO L226 Difference]: Without dead ends: 2450 [2023-12-16 06:35:12,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:35:12,468 INFO L413 NwaCegarLoop]: 1860 mSDtfsCounter, 2839 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2839 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:12,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2839 Valid, 3018 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:35:12,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2023-12-16 06:35:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2448. [2023-12-16 06:35:12,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.5545565999182673) internal successors, (3804), 2447 states have internal predecessors, (3804), 0 states have call successors, (0), 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 06:35:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3804 transitions. [2023-12-16 06:35:12,534 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3804 transitions. Word has length 319 [2023-12-16 06:35:12,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:12,534 INFO L495 AbstractCegarLoop]: Abstraction has 2448 states and 3804 transitions. [2023-12-16 06:35:12,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 06:35:12,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3804 transitions. [2023-12-16 06:35:12,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-12-16 06:35:12,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:12,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:12,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:35:12,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:12,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:12,543 INFO L85 PathProgramCache]: Analyzing trace with hash -695962149, now seen corresponding path program 1 times [2023-12-16 06:35:12,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:12,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915938972] [2023-12-16 06:35:12,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:12,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:12,735 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 06:35:12,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:12,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915938972] [2023-12-16 06:35:12,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915938972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:12,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:12,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:12,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282177748] [2023-12-16 06:35:12,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:12,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:35:12,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:12,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:35:12,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:35:12,741 INFO L87 Difference]: Start difference. First operand 2448 states and 3804 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 06:35:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:12,894 INFO L93 Difference]: Finished difference Result 7127 states and 11034 transitions. [2023-12-16 06:35:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:35:12,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 321 [2023-12-16 06:35:12,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:12,936 INFO L225 Difference]: With dead ends: 7127 [2023-12-16 06:35:12,937 INFO L226 Difference]: Without dead ends: 4803 [2023-12-16 06:35:12,942 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 06:35:12,944 INFO L413 NwaCegarLoop]: 2385 mSDtfsCounter, 1090 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:12,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 3553 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:35:12,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4803 states. [2023-12-16 06:35:13,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4803 to 4801. [2023-12-16 06:35:13,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4801 states, 4800 states have (on average 1.5454166666666667) internal successors, (7418), 4800 states have internal predecessors, (7418), 0 states have call successors, (0), 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 06:35:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4801 states to 4801 states and 7418 transitions. [2023-12-16 06:35:13,127 INFO L78 Accepts]: Start accepts. Automaton has 4801 states and 7418 transitions. Word has length 321 [2023-12-16 06:35:13,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:13,130 INFO L495 AbstractCegarLoop]: Abstraction has 4801 states and 7418 transitions. [2023-12-16 06:35:13,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 06:35:13,139 INFO L276 IsEmpty]: Start isEmpty. Operand 4801 states and 7418 transitions. [2023-12-16 06:35:13,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-12-16 06:35:13,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:13,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:13,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:35:13,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:13,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:13,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1536868704, now seen corresponding path program 1 times [2023-12-16 06:35:13,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:13,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691512523] [2023-12-16 06:35:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:13,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:13,305 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 06:35:13,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:13,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691512523] [2023-12-16 06:35:13,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691512523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:13,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:13,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:13,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776260701] [2023-12-16 06:35:13,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:13,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:35:13,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:13,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:35:13,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:35:13,308 INFO L87 Difference]: Start difference. First operand 4801 states and 7418 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 06:35:13,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:13,408 INFO L93 Difference]: Finished difference Result 14338 states and 22140 transitions. [2023-12-16 06:35:13,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:35:13,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 321 [2023-12-16 06:35:13,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:13,447 INFO L225 Difference]: With dead ends: 14338 [2023-12-16 06:35:13,448 INFO L226 Difference]: Without dead ends: 9574 [2023-12-16 06:35:13,458 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 06:35:13,464 INFO L413 NwaCegarLoop]: 2440 mSDtfsCounter, 1218 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:13,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 3658 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:35:13,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9574 states. [2023-12-16 06:35:13,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9574 to 4820. [2023-12-16 06:35:13,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4820 states, 4819 states have (on average 1.5451338451960988) internal successors, (7446), 4819 states have internal predecessors, (7446), 0 states have call successors, (0), 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 06:35:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4820 states to 4820 states and 7446 transitions. [2023-12-16 06:35:13,629 INFO L78 Accepts]: Start accepts. Automaton has 4820 states and 7446 transitions. Word has length 321 [2023-12-16 06:35:13,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:13,629 INFO L495 AbstractCegarLoop]: Abstraction has 4820 states and 7446 transitions. [2023-12-16 06:35:13,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 06:35:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4820 states and 7446 transitions. [2023-12-16 06:35:13,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-16 06:35:13,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:13,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:13,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:35:13,642 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:13,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:13,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1717629285, now seen corresponding path program 1 times [2023-12-16 06:35:13,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:13,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915931972] [2023-12-16 06:35:13,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:13,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:13,776 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 06:35:13,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:13,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915931972] [2023-12-16 06:35:13,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915931972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:13,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:13,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:13,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624505542] [2023-12-16 06:35:13,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:13,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:35:13,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:13,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:35:13,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:35:13,779 INFO L87 Difference]: Start difference. First operand 4820 states and 7446 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 06:35:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:13,908 INFO L93 Difference]: Finished difference Result 14357 states and 22161 transitions. [2023-12-16 06:35:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:35:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2023-12-16 06:35:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:13,954 INFO L225 Difference]: With dead ends: 14357 [2023-12-16 06:35:13,955 INFO L226 Difference]: Without dead ends: 9592 [2023-12-16 06:35:13,966 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 06:35:13,966 INFO L413 NwaCegarLoop]: 2440 mSDtfsCounter, 1213 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:13,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 3658 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:35:13,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9592 states. [2023-12-16 06:35:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9592 to 4838. [2023-12-16 06:35:14,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4838 states, 4837 states have (on average 1.5437254496588795) internal successors, (7467), 4837 states have internal predecessors, (7467), 0 states have call successors, (0), 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 06:35:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4838 states to 4838 states and 7467 transitions. [2023-12-16 06:35:14,147 INFO L78 Accepts]: Start accepts. Automaton has 4838 states and 7467 transitions. Word has length 322 [2023-12-16 06:35:14,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:14,147 INFO L495 AbstractCegarLoop]: Abstraction has 4838 states and 7467 transitions. [2023-12-16 06:35:14,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 06:35:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4838 states and 7467 transitions. [2023-12-16 06:35:14,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-16 06:35:14,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:14,158 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:14,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:35:14,159 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:14,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:14,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1424019850, now seen corresponding path program 1 times [2023-12-16 06:35:14,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:14,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546072541] [2023-12-16 06:35:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:14,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:14,362 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 06:35:14,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:14,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546072541] [2023-12-16 06:35:14,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546072541] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:14,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:14,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:14,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270743454] [2023-12-16 06:35:14,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:14,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:35:14,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:14,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:35:14,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:35:14,365 INFO L87 Difference]: Start difference. First operand 4838 states and 7467 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 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 06:35:14,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:14,500 INFO L93 Difference]: Finished difference Result 13993 states and 21516 transitions. [2023-12-16 06:35:14,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:35:14,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 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 323 [2023-12-16 06:35:14,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:14,522 INFO L225 Difference]: With dead ends: 13993 [2023-12-16 06:35:14,523 INFO L226 Difference]: Without dead ends: 9395 [2023-12-16 06:35:14,532 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 06:35:14,533 INFO L413 NwaCegarLoop]: 2392 mSDtfsCounter, 1084 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:14,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 3560 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:35:14,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2023-12-16 06:35:14,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 9393. [2023-12-16 06:35:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9393 states, 9392 states have (on average 1.5326873935264054) internal successors, (14395), 9392 states have internal predecessors, (14395), 0 states have call successors, (0), 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 06:35:14,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9393 states to 9393 states and 14395 transitions. [2023-12-16 06:35:14,813 INFO L78 Accepts]: Start accepts. Automaton has 9393 states and 14395 transitions. Word has length 323 [2023-12-16 06:35:14,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:14,813 INFO L495 AbstractCegarLoop]: Abstraction has 9393 states and 14395 transitions. [2023-12-16 06:35:14,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 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 06:35:14,814 INFO L276 IsEmpty]: Start isEmpty. Operand 9393 states and 14395 transitions. [2023-12-16 06:35:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-16 06:35:14,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:14,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:14,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:35:14,835 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:14,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:14,836 INFO L85 PathProgramCache]: Analyzing trace with hash 382000467, now seen corresponding path program 1 times [2023-12-16 06:35:14,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:14,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238393967] [2023-12-16 06:35:14,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:14,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:15,504 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 06:35:15,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:15,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238393967] [2023-12-16 06:35:15,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238393967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:15,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:15,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:35:15,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678135448] [2023-12-16 06:35:15,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:15,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:35:15,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:15,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:35:15,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:35:15,508 INFO L87 Difference]: Start difference. First operand 9393 states and 14395 transitions. Second operand has 5 states, 5 states have (on average 64.6) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 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 06:35:15,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:15,718 INFO L93 Difference]: Finished difference Result 27523 states and 42092 transitions. [2023-12-16 06:35:15,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:35:15,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 64.6) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 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 323 [2023-12-16 06:35:15,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:15,761 INFO L225 Difference]: With dead ends: 27523 [2023-12-16 06:35:15,762 INFO L226 Difference]: Without dead ends: 18184 [2023-12-16 06:35:15,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:35:15,782 INFO L413 NwaCegarLoop]: 1904 mSDtfsCounter, 3466 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3466 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:15,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3466 Valid, 3062 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:35:15,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18184 states. [2023-12-16 06:35:16,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18184 to 18182. [2023-12-16 06:35:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18182 states, 18181 states have (on average 1.5198283922776525) internal successors, (27632), 18181 states have internal predecessors, (27632), 0 states have call successors, (0), 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 06:35:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18182 states to 18182 states and 27632 transitions. [2023-12-16 06:35:16,236 INFO L78 Accepts]: Start accepts. Automaton has 18182 states and 27632 transitions. Word has length 323 [2023-12-16 06:35:16,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:16,237 INFO L495 AbstractCegarLoop]: Abstraction has 18182 states and 27632 transitions. [2023-12-16 06:35:16,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.6) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 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 06:35:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 18182 states and 27632 transitions. [2023-12-16 06:35:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-16 06:35:16,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:16,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:16,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:35:16,271 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:16,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:16,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2028744946, now seen corresponding path program 1 times [2023-12-16 06:35:16,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:16,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692651290] [2023-12-16 06:35:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:16,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:16,908 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 06:35:16,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:16,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692651290] [2023-12-16 06:35:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692651290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:16,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:16,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:35:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27953490] [2023-12-16 06:35:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:16,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:35:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:16,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:35:16,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:35:16,911 INFO L87 Difference]: Start difference. First operand 18182 states and 27632 transitions. Second operand has 5 states, 5 states have (on average 65.0) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 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 06:35:17,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:17,174 INFO L93 Difference]: Finished difference Result 53469 states and 81103 transitions. [2023-12-16 06:35:17,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:35:17,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.0) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 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 325 [2023-12-16 06:35:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:17,251 INFO L225 Difference]: With dead ends: 53469 [2023-12-16 06:35:17,251 INFO L226 Difference]: Without dead ends: 35403 [2023-12-16 06:35:17,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:35:17,287 INFO L413 NwaCegarLoop]: 1893 mSDtfsCounter, 2874 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 4209 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:17,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 4209 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:35:17,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35403 states. [2023-12-16 06:35:17,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35403 to 35401. [2023-12-16 06:35:17,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35401 states, 35400 states have (on average 1.5076553672316384) internal successors, (53371), 35400 states have internal predecessors, (53371), 0 states have call successors, (0), 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 06:35:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35401 states to 35401 states and 53371 transitions. [2023-12-16 06:35:17,978 INFO L78 Accepts]: Start accepts. Automaton has 35401 states and 53371 transitions. Word has length 325 [2023-12-16 06:35:17,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:17,979 INFO L495 AbstractCegarLoop]: Abstraction has 35401 states and 53371 transitions. [2023-12-16 06:35:17,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.0) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 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 06:35:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand 35401 states and 53371 transitions. [2023-12-16 06:35:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-16 06:35:18,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:18,046 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:18,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:35:18,047 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:18,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:18,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1618189131, now seen corresponding path program 1 times [2023-12-16 06:35:18,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:18,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430822749] [2023-12-16 06:35:18,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:18,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:18,872 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 06:35:18,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:18,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430822749] [2023-12-16 06:35:18,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430822749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:18,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:18,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:18,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48835162] [2023-12-16 06:35:18,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:18,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:35:18,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:35:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:35:18,884 INFO L87 Difference]: Start difference. First operand 35401 states and 53371 transitions. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 06:35:19,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:19,445 INFO L93 Difference]: Finished difference Result 104363 states and 157064 transitions. [2023-12-16 06:35:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:35:19,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 325 [2023-12-16 06:35:19,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:19,736 INFO L225 Difference]: With dead ends: 104363 [2023-12-16 06:35:19,737 INFO L226 Difference]: Without dead ends: 69191 [2023-12-16 06:35:19,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:35:19,795 INFO L413 NwaCegarLoop]: 1938 mSDtfsCounter, 2681 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2681 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:19,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2681 Valid, 3096 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:35:19,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69191 states. [2023-12-16 06:35:20,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69191 to 69189. [2023-12-16 06:35:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69189 states, 69188 states have (on average 1.4956206278545412) internal successors, (103479), 69188 states have internal predecessors, (103479), 0 states have call successors, (0), 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 06:35:21,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69189 states to 69189 states and 103479 transitions. [2023-12-16 06:35:21,097 INFO L78 Accepts]: Start accepts. Automaton has 69189 states and 103479 transitions. Word has length 325 [2023-12-16 06:35:21,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:21,097 INFO L495 AbstractCegarLoop]: Abstraction has 69189 states and 103479 transitions. [2023-12-16 06:35:21,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 06:35:21,098 INFO L276 IsEmpty]: Start isEmpty. Operand 69189 states and 103479 transitions. [2023-12-16 06:35:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-16 06:35:21,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:21,457 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:21,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:35:21,458 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:21,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:21,458 INFO L85 PathProgramCache]: Analyzing trace with hash 329815894, now seen corresponding path program 1 times [2023-12-16 06:35:21,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:21,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26652391] [2023-12-16 06:35:21,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:21,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:21,614 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 06:35:21,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26652391] [2023-12-16 06:35:21,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26652391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:21,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:21,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:21,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414699074] [2023-12-16 06:35:21,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:21,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:35:21,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:21,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:35:21,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:35:21,617 INFO L87 Difference]: Start difference. First operand 69189 states and 103479 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 06:35:22,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:22,554 INFO L93 Difference]: Finished difference Result 203289 states and 303279 transitions. [2023-12-16 06:35:22,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:35:22,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 327 [2023-12-16 06:35:22,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:22,849 INFO L225 Difference]: With dead ends: 203289 [2023-12-16 06:35:22,849 INFO L226 Difference]: Without dead ends: 135479 [2023-12-16 06:35:23,183 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 06:35:23,184 INFO L413 NwaCegarLoop]: 2344 mSDtfsCounter, 1064 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:23,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 3512 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:35:23,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135479 states. [2023-12-16 06:35:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135479 to 135477. [2023-12-16 06:35:25,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135477 states, 135476 states have (on average 1.4842259883669433) internal successors, (201077), 135476 states have internal predecessors, (201077), 0 states have call successors, (0), 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 06:35:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135477 states to 135477 states and 201077 transitions. [2023-12-16 06:35:25,621 INFO L78 Accepts]: Start accepts. Automaton has 135477 states and 201077 transitions. Word has length 327 [2023-12-16 06:35:25,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:25,621 INFO L495 AbstractCegarLoop]: Abstraction has 135477 states and 201077 transitions. [2023-12-16 06:35:25,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 06:35:25,622 INFO L276 IsEmpty]: Start isEmpty. Operand 135477 states and 201077 transitions. [2023-12-16 06:35:26,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-16 06:35:26,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:26,029 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:26,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:35:26,030 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:26,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:26,030 INFO L85 PathProgramCache]: Analyzing trace with hash 204155547, now seen corresponding path program 1 times [2023-12-16 06:35:26,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:26,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267011432] [2023-12-16 06:35:26,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:26,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:26,166 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 06:35:26,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:26,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267011432] [2023-12-16 06:35:26,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267011432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:26,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:26,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:26,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007286952] [2023-12-16 06:35:26,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:26,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:35:26,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:35:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:35:26,169 INFO L87 Difference]: Start difference. First operand 135477 states and 201077 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 06:35:27,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:27,804 INFO L93 Difference]: Finished difference Result 405309 states and 601409 transitions. [2023-12-16 06:35:27,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:35:27,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 327 [2023-12-16 06:35:27,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:28,263 INFO L225 Difference]: With dead ends: 405309 [2023-12-16 06:35:28,267 INFO L226 Difference]: Without dead ends: 270493 [2023-12-16 06:35:28,416 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 06:35:28,430 INFO L413 NwaCegarLoop]: 2407 mSDtfsCounter, 1185 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:28,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 3625 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:35:28,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270493 states. [2023-12-16 06:35:32,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270493 to 135687. [2023-12-16 06:35:32,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135687 states, 135686 states have (on average 1.4842282917913419) internal successors, (201389), 135686 states have internal predecessors, (201389), 0 states have call successors, (0), 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 06:35:33,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135687 states to 135687 states and 201389 transitions. [2023-12-16 06:35:33,295 INFO L78 Accepts]: Start accepts. Automaton has 135687 states and 201389 transitions. Word has length 327 [2023-12-16 06:35:33,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:33,296 INFO L495 AbstractCegarLoop]: Abstraction has 135687 states and 201389 transitions. [2023-12-16 06:35:33,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 06:35:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand 135687 states and 201389 transitions. [2023-12-16 06:35:33,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-12-16 06:35:33,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:33,481 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:33,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:35:33,481 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:33,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:33,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1820953796, now seen corresponding path program 1 times [2023-12-16 06:35:33,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:33,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604892251] [2023-12-16 06:35:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:33,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:34,091 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 06:35:34,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:34,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604892251] [2023-12-16 06:35:34,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604892251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:34,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:34,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:34,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413970285] [2023-12-16 06:35:34,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:34,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:35:34,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:34,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:35:34,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:35:34,094 INFO L87 Difference]: Start difference. First operand 135687 states and 201389 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 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 06:35:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:35,560 INFO L93 Difference]: Finished difference Result 405497 states and 601615 transitions. [2023-12-16 06:35:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:35:35,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2023-12-16 06:35:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:35,974 INFO L225 Difference]: With dead ends: 405497 [2023-12-16 06:35:35,974 INFO L226 Difference]: Without dead ends: 270671 [2023-12-16 06:35:36,416 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 06:35:36,419 INFO L413 NwaCegarLoop]: 2407 mSDtfsCounter, 1180 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:36,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 3625 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:35:36,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270671 states. [2023-12-16 06:35:39,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270671 to 135917. [2023-12-16 06:35:40,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135917 states, 135916 states have (on average 1.4836590246917214) internal successors, (201653), 135916 states have internal predecessors, (201653), 0 states have call successors, (0), 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 06:35:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135917 states to 135917 states and 201653 transitions. [2023-12-16 06:35:40,339 INFO L78 Accepts]: Start accepts. Automaton has 135917 states and 201653 transitions. Word has length 328 [2023-12-16 06:35:40,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:40,339 INFO L495 AbstractCegarLoop]: Abstraction has 135917 states and 201653 transitions. [2023-12-16 06:35:40,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 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 06:35:40,340 INFO L276 IsEmpty]: Start isEmpty. Operand 135917 states and 201653 transitions. [2023-12-16 06:35:40,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-12-16 06:35:40,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:40,501 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:40,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:35:40,501 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:40,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:40,516 INFO L85 PathProgramCache]: Analyzing trace with hash 823870798, now seen corresponding path program 1 times [2023-12-16 06:35:40,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:40,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180320732] [2023-12-16 06:35:40,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:40,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:41,622 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 06:35:41,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:41,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180320732] [2023-12-16 06:35:41,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180320732] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:41,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:41,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:35:41,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124072502] [2023-12-16 06:35:41,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:41,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:35:41,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:41,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:35:41,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:35:41,626 INFO L87 Difference]: Start difference. First operand 135917 states and 201653 transitions. Second operand has 5 states, 5 states have (on average 65.8) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 06:35:42,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:42,925 INFO L93 Difference]: Finished difference Result 399548 states and 591510 transitions. [2023-12-16 06:35:42,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:35:42,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 329 [2023-12-16 06:35:42,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:43,603 INFO L225 Difference]: With dead ends: 399548 [2023-12-16 06:35:43,603 INFO L226 Difference]: Without dead ends: 264211 [2023-12-16 06:35:43,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:35:43,714 INFO L413 NwaCegarLoop]: 1831 mSDtfsCounter, 3972 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3972 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:43,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3972 Valid, 2989 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:35:43,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264211 states. [2023-12-16 06:35:47,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264211 to 264209. [2023-12-16 06:35:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264209 states, 264208 states have (on average 1.4704588808817296) internal successors, (388507), 264208 states have internal predecessors, (388507), 0 states have call successors, (0), 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 06:35:49,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264209 states to 264209 states and 388507 transitions. [2023-12-16 06:35:49,173 INFO L78 Accepts]: Start accepts. Automaton has 264209 states and 388507 transitions. Word has length 329 [2023-12-16 06:35:49,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:35:49,174 INFO L495 AbstractCegarLoop]: Abstraction has 264209 states and 388507 transitions. [2023-12-16 06:35:49,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 06:35:49,174 INFO L276 IsEmpty]: Start isEmpty. Operand 264209 states and 388507 transitions. [2023-12-16 06:35:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-12-16 06:35:49,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:35:49,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:49,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:35:49,492 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:35:49,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:35:49,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1150594846, now seen corresponding path program 1 times [2023-12-16 06:35:49,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:35:49,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825025326] [2023-12-16 06:35:49,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:35:49,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:35:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:35:50,300 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 06:35:50,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:35:50,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825025326] [2023-12-16 06:35:50,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825025326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:35:50,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:35:50,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:35:50,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521377922] [2023-12-16 06:35:50,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:35:50,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:35:50,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:35:50,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:35:50,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:35:50,302 INFO L87 Difference]: Start difference. First operand 264209 states and 388507 transitions. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 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 06:35:52,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:35:52,546 INFO L93 Difference]: Finished difference Result 548614 states and 806569 transitions. [2023-12-16 06:35:52,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:35:52,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 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 331 [2023-12-16 06:35:52,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:35:53,038 INFO L225 Difference]: With dead ends: 548614 [2023-12-16 06:35:53,039 INFO L226 Difference]: Without dead ends: 286022 [2023-12-16 06:35:53,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:35:53,131 INFO L413 NwaCegarLoop]: 1739 mSDtfsCounter, 2833 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:35:53,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2833 Valid, 2897 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:35:53,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286022 states. Received shutdown request... [2023-12-16 06:35:57,022 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:35:57,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286022 to 264444. [2023-12-16 06:35:57,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264444 states, 264443 states have (on average 1.4698555076141173) internal successors, (388693), 264443 states have internal predecessors, (388693), 0 states have call successors, (0), 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 06:35:57,863 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:35:57,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:35:57,864 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 06:35:57,873 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:35:57,884 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:35:57,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:35:57 BoogieIcfgContainer [2023-12-16 06:35:57,890 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:35:57,890 INFO L158 Benchmark]: Toolchain (without parser) took 52370.94ms. Allocated memory was 315.6MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 259.1MB in the beginning and 6.5GB in the end (delta: -6.2GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. [2023-12-16 06:35:57,891 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 181.4MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:35:57,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1462.04ms. Allocated memory is still 315.6MB. Free memory was 259.1MB in the beginning and 263.9MB in the end (delta: -4.8MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2023-12-16 06:35:57,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 141.78ms. Allocated memory is still 315.6MB. Free memory was 263.9MB in the beginning and 249.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 06:35:57,893 INFO L158 Benchmark]: Boogie Preprocessor took 178.84ms. Allocated memory is still 315.6MB. Free memory was 249.8MB in the beginning and 237.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 06:35:57,893 INFO L158 Benchmark]: RCFGBuilder took 2201.63ms. Allocated memory is still 315.6MB. Free memory was 237.2MB in the beginning and 179.1MB in the end (delta: 58.1MB). Peak memory consumption was 101.1MB. Max. memory is 8.0GB. [2023-12-16 06:35:57,899 INFO L158 Benchmark]: TraceAbstraction took 48379.81ms. Allocated memory was 315.6MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 178.1MB in the beginning and 6.5GB in the end (delta: -6.3GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2023-12-16 06:35:57,903 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 181.4MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1462.04ms. Allocated memory is still 315.6MB. Free memory was 259.1MB in the beginning and 263.9MB in the end (delta: -4.8MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 141.78ms. Allocated memory is still 315.6MB. Free memory was 263.9MB in the beginning and 249.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 178.84ms. Allocated memory is still 315.6MB. Free memory was 249.8MB in the beginning and 237.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 2201.63ms. Allocated memory is still 315.6MB. Free memory was 237.2MB in the beginning and 179.1MB in the end (delta: 58.1MB). Peak memory consumption was 101.1MB. Max. memory is 8.0GB. * TraceAbstraction took 48379.81ms. Allocated memory was 315.6MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 178.1MB in the beginning and 6.5GB in the end (delta: -6.3GB). Peak memory consumption was 3.8GB. 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: 2033]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2033). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 788 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.3s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.6s, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27529 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27529 mSDsluCounter, 46878 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17560 mSDsCounter, 257 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 567 IncrementalHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 257 mSolverCounterUnsat, 29318 mSDtfsCounter, 567 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264209occurred in iteration=13, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 24.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 279086 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 4540 NumberOfCodeBlocks, 4540 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4526 ConstructedInterpolants, 0 QuantifiedInterpolants, 11822 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-12-16 06:35:57,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0