/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 01:54:21,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 01:54:21,116 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 01:54:21,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 01:54:21,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 01:54:21,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 01:54:21,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 01:54:21,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 01:54:21,158 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 01:54:21,162 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 01:54:21,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 01:54:21,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 01:54:21,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 01:54:21,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 01:54:21,165 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 01:54:21,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 01:54:21,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 01:54:21,165 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 01:54:21,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 01:54:21,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 01:54:21,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 01:54:21,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 01:54:21,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 01:54:21,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 01:54:21,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 01:54:21,168 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 01:54:21,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 01:54:21,168 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 01:54:21,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 01:54:21,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 01:54:21,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 01:54:21,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 01:54:21,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:54:21,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 01:54:21,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 01:54:21,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 01:54:21,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 01:54:21,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 01:54:21,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 01:54:21,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 01:54:21,172 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 01:54:21,172 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 01:54:21,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 01:54:21,172 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 01:54:21,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 01:54:21,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 01:54:21,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 01:54:21,457 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 01:54:21,457 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 01:54:21,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label17.c [2023-12-19 01:54:22,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 01:54:22,971 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 01:54:22,972 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label17.c [2023-12-19 01:54:22,995 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740932fb9/cc0da587c2c3426da193ea16534e8818/FLAG76c41f0bd [2023-12-19 01:54:23,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740932fb9/cc0da587c2c3426da193ea16534e8818 [2023-12-19 01:54:23,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 01:54:23,013 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 01:54:23,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 01:54:23,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 01:54:23,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 01:54:23,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237ae3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23, skipping insertion in model container [2023-12-19 01:54:23,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,087 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 01:54:23,540 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label17.c[61094,61107] [2023-12-19 01:54:23,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:54:23,576 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 01:54:23,734 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label17.c[61094,61107] [2023-12-19 01:54:23,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:54:23,756 INFO L206 MainTranslator]: Completed translation [2023-12-19 01:54:23,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23 WrapperNode [2023-12-19 01:54:23,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 01:54:23,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 01:54:23,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 01:54:23,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 01:54:23,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,879 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1772 [2023-12-19 01:54:23,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 01:54:23,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 01:54:23,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 01:54:23,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 01:54:23,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,899 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,943 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 01:54:23,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:23,996 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:24,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:24,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:24,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 01:54:24,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 01:54:24,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 01:54:24,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 01:54:24,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (1/1) ... [2023-12-19 01:54:24,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:54:24,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:54:24,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 01:54:24,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 01:54:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 01:54:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 01:54:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 01:54:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 01:54:24,221 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 01:54:24,223 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 01:54:25,782 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 01:54:25,837 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 01:54:25,837 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 01:54:25,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:54:25 BoogieIcfgContainer [2023-12-19 01:54:25,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 01:54:25,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 01:54:25,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 01:54:25,843 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 01:54:25,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:54:23" (1/3) ... [2023-12-19 01:54:25,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1c2d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:54:25, skipping insertion in model container [2023-12-19 01:54:25,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:54:23" (2/3) ... [2023-12-19 01:54:25,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1c2d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:54:25, skipping insertion in model container [2023-12-19 01:54:25,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:54:25" (3/3) ... [2023-12-19 01:54:25,845 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label17.c [2023-12-19 01:54:25,861 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 01:54:25,861 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 01:54:25,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 01:54:25,922 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;@4e9e7430, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 01:54:25,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 01:54:25,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:25,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-19 01:54:25,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:25,949 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] [2023-12-19 01:54:25,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:25,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1782304588, now seen corresponding path program 1 times [2023-12-19 01:54:25,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:25,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907367814] [2023-12-19 01:54:25,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:25,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:26,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:54:26,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:26,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907367814] [2023-12-19 01:54:26,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907367814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:26,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:26,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:26,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839744791] [2023-12-19 01:54:26,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:26,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 01:54:26,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:26,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 01:54:26,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 01:54:26,501 INFO L87 Difference]: Start difference. First operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:26,541 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-19 01:54:26,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 01:54:26,543 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2023-12-19 01:54:26,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:26,553 INFO L225 Difference]: With dead ends: 479 [2023-12-19 01:54:26,553 INFO L226 Difference]: Without dead ends: 238 [2023-12-19 01:54:26,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 01:54:26,558 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:26,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 01:54:26,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-19 01:54:26,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-19 01:54:26,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.6540084388185654) internal successors, (392), 237 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-19 01:54:26,604 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 198 [2023-12-19 01:54:26,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:26,605 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-19 01:54:26,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:26,606 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-19 01:54:26,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-19 01:54:26,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:26,609 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] [2023-12-19 01:54:26,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 01:54:26,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:26,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:26,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1100314422, now seen corresponding path program 1 times [2023-12-19 01:54:26,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:26,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406789979] [2023-12-19 01:54:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:26,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:27,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:54:27,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:27,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406789979] [2023-12-19 01:54:27,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406789979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:27,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:27,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:27,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674371074] [2023-12-19 01:54:27,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:27,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:27,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:27,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:27,175 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:27,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:27,985 INFO L93 Difference]: Finished difference Result 698 states and 1151 transitions. [2023-12-19 01:54:27,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:27,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2023-12-19 01:54:27,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:27,989 INFO L225 Difference]: With dead ends: 698 [2023-12-19 01:54:27,989 INFO L226 Difference]: Without dead ends: 461 [2023-12-19 01:54:27,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:27,991 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 57 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:27,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 148 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:54:27,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-12-19 01:54:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 459. [2023-12-19 01:54:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.539301310043668) internal successors, (705), 458 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 705 transitions. [2023-12-19 01:54:28,021 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 705 transitions. Word has length 198 [2023-12-19 01:54:28,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:28,021 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 705 transitions. [2023-12-19 01:54:28,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:28,022 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 705 transitions. [2023-12-19 01:54:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-19 01:54:28,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:28,026 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:28,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 01:54:28,026 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:28,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:28,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2109463113, now seen corresponding path program 1 times [2023-12-19 01:54:28,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:28,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595110765] [2023-12-19 01:54:28,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:28,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:54:28,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:28,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595110765] [2023-12-19 01:54:28,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595110765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:28,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:28,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:28,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852346000] [2023-12-19 01:54:28,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:28,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:28,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:28,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:28,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:28,274 INFO L87 Difference]: Start difference. First operand 459 states and 705 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:29,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:29,054 INFO L93 Difference]: Finished difference Result 1343 states and 2078 transitions. [2023-12-19 01:54:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:29,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 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 206 [2023-12-19 01:54:29,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:29,058 INFO L225 Difference]: With dead ends: 1343 [2023-12-19 01:54:29,058 INFO L226 Difference]: Without dead ends: 885 [2023-12-19 01:54:29,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:29,061 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 247 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:29,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 90 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:54:29,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2023-12-19 01:54:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 869. [2023-12-19 01:54:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.512672811059908) internal successors, (1313), 868 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1313 transitions. [2023-12-19 01:54:29,092 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1313 transitions. Word has length 206 [2023-12-19 01:54:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:29,092 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1313 transitions. [2023-12-19 01:54:29,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1313 transitions. [2023-12-19 01:54:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-19 01:54:29,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:29,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:29,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 01:54:29,097 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:29,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:29,098 INFO L85 PathProgramCache]: Analyzing trace with hash -374806736, now seen corresponding path program 1 times [2023-12-19 01:54:29,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:29,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266050779] [2023-12-19 01:54:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:29,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 01:54:29,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:29,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266050779] [2023-12-19 01:54:29,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266050779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:29,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:29,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:54:29,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859269954] [2023-12-19 01:54:29,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:29,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:29,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:29,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:29,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:29,358 INFO L87 Difference]: Start difference. First operand 869 states and 1313 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:30,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:30,170 INFO L93 Difference]: Finished difference Result 2553 states and 3868 transitions. [2023-12-19 01:54:30,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:30,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 218 [2023-12-19 01:54:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:30,177 INFO L225 Difference]: With dead ends: 2553 [2023-12-19 01:54:30,177 INFO L226 Difference]: Without dead ends: 1685 [2023-12-19 01:54:30,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:30,189 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 233 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:30,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 413 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:54:30,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2023-12-19 01:54:30,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1683. [2023-12-19 01:54:30,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1682 states have (on average 1.3370986920332937) internal successors, (2249), 1682 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2249 transitions. [2023-12-19 01:54:30,225 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2249 transitions. Word has length 218 [2023-12-19 01:54:30,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:30,226 INFO L495 AbstractCegarLoop]: Abstraction has 1683 states and 2249 transitions. [2023-12-19 01:54:30,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:30,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2249 transitions. [2023-12-19 01:54:30,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-19 01:54:30,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:30,231 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:30,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 01:54:30,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:30,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:30,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2000752269, now seen corresponding path program 1 times [2023-12-19 01:54:30,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:30,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979396348] [2023-12-19 01:54:30,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:30,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:30,530 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:54:30,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979396348] [2023-12-19 01:54:30,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979396348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:30,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:30,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:30,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916280165] [2023-12-19 01:54:30,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:30,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:30,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:30,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:30,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:30,532 INFO L87 Difference]: Start difference. First operand 1683 states and 2249 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:31,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:31,224 INFO L93 Difference]: Finished difference Result 5016 states and 6709 transitions. [2023-12-19 01:54:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:31,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2023-12-19 01:54:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:31,236 INFO L225 Difference]: With dead ends: 5016 [2023-12-19 01:54:31,236 INFO L226 Difference]: Without dead ends: 3334 [2023-12-19 01:54:31,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:31,240 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 259 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:31,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 121 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:54:31,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2023-12-19 01:54:31,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3325. [2023-12-19 01:54:31,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3325 states, 3324 states have (on average 1.3237063778580025) internal successors, (4400), 3324 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:31,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 4400 transitions. [2023-12-19 01:54:31,346 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 4400 transitions. Word has length 221 [2023-12-19 01:54:31,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:31,347 INFO L495 AbstractCegarLoop]: Abstraction has 3325 states and 4400 transitions. [2023-12-19 01:54:31,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 4400 transitions. [2023-12-19 01:54:31,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-19 01:54:31,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:31,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:31,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 01:54:31,356 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:31,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:31,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1209351989, now seen corresponding path program 1 times [2023-12-19 01:54:31,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:31,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126999614] [2023-12-19 01:54:31,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:31,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:54:31,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:31,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126999614] [2023-12-19 01:54:31,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126999614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:31,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:31,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:31,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934631234] [2023-12-19 01:54:31,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:31,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:31,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:31,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:31,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:31,603 INFO L87 Difference]: Start difference. First operand 3325 states and 4400 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:32,321 INFO L93 Difference]: Finished difference Result 9925 states and 13149 transitions. [2023-12-19 01:54:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:32,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 0 states have call successors, (0), 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 224 [2023-12-19 01:54:32,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:32,345 INFO L225 Difference]: With dead ends: 9925 [2023-12-19 01:54:32,346 INFO L226 Difference]: Without dead ends: 6601 [2023-12-19 01:54:32,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:32,353 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 217 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:32,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 166 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:54:32,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6601 states. [2023-12-19 01:54:32,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6601 to 5767. [2023-12-19 01:54:32,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 5766 states have (on average 1.3371488033298646) internal successors, (7710), 5766 states have internal predecessors, (7710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:32,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 7710 transitions. [2023-12-19 01:54:32,490 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 7710 transitions. Word has length 224 [2023-12-19 01:54:32,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:32,490 INFO L495 AbstractCegarLoop]: Abstraction has 5767 states and 7710 transitions. [2023-12-19 01:54:32,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:32,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 7710 transitions. [2023-12-19 01:54:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-19 01:54:32,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:32,502 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:32,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 01:54:32,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:32,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:32,503 INFO L85 PathProgramCache]: Analyzing trace with hash 821409665, now seen corresponding path program 1 times [2023-12-19 01:54:32,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:32,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801456663] [2023-12-19 01:54:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:32,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:32,915 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-19 01:54:32,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:32,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801456663] [2023-12-19 01:54:32,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801456663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:32,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:32,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:32,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53831664] [2023-12-19 01:54:32,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:32,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:32,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:32,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:32,918 INFO L87 Difference]: Start difference. First operand 5767 states and 7710 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 2 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:33,704 INFO L93 Difference]: Finished difference Result 15633 states and 21104 transitions. [2023-12-19 01:54:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:33,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 2 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2023-12-19 01:54:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:33,736 INFO L225 Difference]: With dead ends: 15633 [2023-12-19 01:54:33,736 INFO L226 Difference]: Without dead ends: 9867 [2023-12-19 01:54:33,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:33,746 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 211 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:33,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 186 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:54:33,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9867 states. [2023-12-19 01:54:33,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9867 to 9642. [2023-12-19 01:54:33,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9642 states, 9641 states have (on average 1.3567057359195105) internal successors, (13080), 9641 states have internal predecessors, (13080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9642 states to 9642 states and 13080 transitions. [2023-12-19 01:54:33,975 INFO L78 Accepts]: Start accepts. Automaton has 9642 states and 13080 transitions. Word has length 233 [2023-12-19 01:54:33,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:33,975 INFO L495 AbstractCegarLoop]: Abstraction has 9642 states and 13080 transitions. [2023-12-19 01:54:33,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 2 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:33,976 INFO L276 IsEmpty]: Start isEmpty. Operand 9642 states and 13080 transitions. [2023-12-19 01:54:33,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-19 01:54:33,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:33,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:33,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 01:54:33,993 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:33,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:33,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1965215310, now seen corresponding path program 1 times [2023-12-19 01:54:33,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:33,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514753781] [2023-12-19 01:54:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:33,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:54:34,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:34,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514753781] [2023-12-19 01:54:34,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514753781] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:54:34,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801718720] [2023-12-19 01:54:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:34,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:54:34,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:54:34,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:54:34,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 01:54:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:34,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 01:54:34,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:54:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 01:54:34,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:54:34,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801718720] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:34,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:54:34,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-19 01:54:34,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229993416] [2023-12-19 01:54:34,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:34,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:34,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:34,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:34,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:54:34,788 INFO L87 Difference]: Start difference. First operand 9642 states and 13080 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:35,705 INFO L93 Difference]: Finished difference Result 25377 states and 34356 transitions. [2023-12-19 01:54:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:35,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2023-12-19 01:54:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:35,745 INFO L225 Difference]: With dead ends: 25377 [2023-12-19 01:54:35,746 INFO L226 Difference]: Without dead ends: 15736 [2023-12-19 01:54:35,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:54:35,763 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 73 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:35,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 393 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:54:35,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15736 states. [2023-12-19 01:54:35,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15736 to 15329. [2023-12-19 01:54:36,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15329 states, 15328 states have (on average 1.289339770354906) internal successors, (19763), 15328 states have internal predecessors, (19763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15329 states to 15329 states and 19763 transitions. [2023-12-19 01:54:36,042 INFO L78 Accepts]: Start accepts. Automaton has 15329 states and 19763 transitions. Word has length 236 [2023-12-19 01:54:36,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:36,043 INFO L495 AbstractCegarLoop]: Abstraction has 15329 states and 19763 transitions. [2023-12-19 01:54:36,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:36,043 INFO L276 IsEmpty]: Start isEmpty. Operand 15329 states and 19763 transitions. [2023-12-19 01:54:36,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-19 01:54:36,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:36,069 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:36,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 01:54:36,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:54:36,281 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:36,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:36,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1098418408, now seen corresponding path program 1 times [2023-12-19 01:54:36,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:36,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545377108] [2023-12-19 01:54:36,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:36,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 01:54:36,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:36,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545377108] [2023-12-19 01:54:36,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545377108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:36,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:36,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:36,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811995097] [2023-12-19 01:54:36,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:36,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:36,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:36,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:36,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:36,742 INFO L87 Difference]: Start difference. First operand 15329 states and 19763 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:37,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:37,538 INFO L93 Difference]: Finished difference Result 34731 states and 44707 transitions. [2023-12-19 01:54:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:37,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 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 243 [2023-12-19 01:54:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:37,583 INFO L225 Difference]: With dead ends: 34731 [2023-12-19 01:54:37,583 INFO L226 Difference]: Without dead ends: 19810 [2023-12-19 01:54:37,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:37,605 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 204 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:37,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 171 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:54:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19810 states. [2023-12-19 01:54:37,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19810 to 19795. [2023-12-19 01:54:37,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19795 states, 19794 states have (on average 1.2689198747095078) internal successors, (25117), 19794 states have internal predecessors, (25117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19795 states to 19795 states and 25117 transitions. [2023-12-19 01:54:37,900 INFO L78 Accepts]: Start accepts. Automaton has 19795 states and 25117 transitions. Word has length 243 [2023-12-19 01:54:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:37,900 INFO L495 AbstractCegarLoop]: Abstraction has 19795 states and 25117 transitions. [2023-12-19 01:54:37,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:37,900 INFO L276 IsEmpty]: Start isEmpty. Operand 19795 states and 25117 transitions. [2023-12-19 01:54:37,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-19 01:54:37,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:37,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:37,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 01:54:37,927 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:37,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:37,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1166324119, now seen corresponding path program 1 times [2023-12-19 01:54:37,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:37,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625805110] [2023-12-19 01:54:37,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:37,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 01:54:38,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:38,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625805110] [2023-12-19 01:54:38,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625805110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:38,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:38,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:38,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007846372] [2023-12-19 01:54:38,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:38,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:38,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:38,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:38,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:38,367 INFO L87 Difference]: Start difference. First operand 19795 states and 25117 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:39,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:39,171 INFO L93 Difference]: Finished difference Result 43672 states and 55132 transitions. [2023-12-19 01:54:39,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:39,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 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 244 [2023-12-19 01:54:39,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:39,222 INFO L225 Difference]: With dead ends: 43672 [2023-12-19 01:54:39,223 INFO L226 Difference]: Without dead ends: 24691 [2023-12-19 01:54:39,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:39,249 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 211 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:39,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 194 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:54:39,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24691 states. [2023-12-19 01:54:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24691 to 24671. [2023-12-19 01:54:39,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24671 states, 24670 states have (on average 1.2531414673692745) internal successors, (30915), 24670 states have internal predecessors, (30915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24671 states to 24671 states and 30915 transitions. [2023-12-19 01:54:39,687 INFO L78 Accepts]: Start accepts. Automaton has 24671 states and 30915 transitions. Word has length 244 [2023-12-19 01:54:39,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:39,687 INFO L495 AbstractCegarLoop]: Abstraction has 24671 states and 30915 transitions. [2023-12-19 01:54:39,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 24671 states and 30915 transitions. [2023-12-19 01:54:39,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-19 01:54:39,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:39,719 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:39,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 01:54:39,720 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:39,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:39,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1614038747, now seen corresponding path program 1 times [2023-12-19 01:54:39,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:39,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610252057] [2023-12-19 01:54:39,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:39,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 01:54:40,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:40,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610252057] [2023-12-19 01:54:40,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610252057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:40,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:40,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:54:40,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497858073] [2023-12-19 01:54:40,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:40,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:40,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:40,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:40,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:40,148 INFO L87 Difference]: Start difference. First operand 24671 states and 30915 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:41,090 INFO L93 Difference]: Finished difference Result 54428 states and 68083 transitions. [2023-12-19 01:54:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:41,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 246 [2023-12-19 01:54:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:41,136 INFO L225 Difference]: With dead ends: 54428 [2023-12-19 01:54:41,137 INFO L226 Difference]: Without dead ends: 30977 [2023-12-19 01:54:41,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:41,162 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 203 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:41,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 420 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:54:41,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30977 states. [2023-12-19 01:54:41,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30977 to 29754. [2023-12-19 01:54:41,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29754 states, 29753 states have (on average 1.2304641548751387) internal successors, (36610), 29753 states have internal predecessors, (36610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:41,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29754 states to 29754 states and 36610 transitions. [2023-12-19 01:54:41,767 INFO L78 Accepts]: Start accepts. Automaton has 29754 states and 36610 transitions. Word has length 246 [2023-12-19 01:54:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:41,768 INFO L495 AbstractCegarLoop]: Abstraction has 29754 states and 36610 transitions. [2023-12-19 01:54:41,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 29754 states and 36610 transitions. [2023-12-19 01:54:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-19 01:54:41,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:41,795 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:41,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 01:54:41,796 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:41,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:41,798 INFO L85 PathProgramCache]: Analyzing trace with hash 534659817, now seen corresponding path program 1 times [2023-12-19 01:54:41,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:41,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703341625] [2023-12-19 01:54:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 50 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 01:54:42,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:42,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703341625] [2023-12-19 01:54:42,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703341625] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:54:42,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571456852] [2023-12-19 01:54:42,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:42,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:54:42,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:54:42,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:54:42,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 01:54:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:42,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 01:54:42,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:54:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 01:54:42,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:54:42,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571456852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:42,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:54:42,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-12-19 01:54:42,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704107199] [2023-12-19 01:54:42,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:42,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:42,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:42,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:42,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:54:42,591 INFO L87 Difference]: Start difference. First operand 29754 states and 36610 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:43,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:43,427 INFO L93 Difference]: Finished difference Result 57476 states and 70706 transitions. [2023-12-19 01:54:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:43,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 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 250 [2023-12-19 01:54:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:43,466 INFO L225 Difference]: With dead ends: 57476 [2023-12-19 01:54:43,467 INFO L226 Difference]: Without dead ends: 28739 [2023-12-19 01:54:43,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:54:43,491 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 235 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:43,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 135 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:54:43,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28739 states. [2023-12-19 01:54:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28739 to 26909. [2023-12-19 01:54:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26909 states, 26908 states have (on average 1.202058867251375) internal successors, (32345), 26908 states have internal predecessors, (32345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:44,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26909 states to 26909 states and 32345 transitions. [2023-12-19 01:54:44,023 INFO L78 Accepts]: Start accepts. Automaton has 26909 states and 32345 transitions. Word has length 250 [2023-12-19 01:54:44,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:44,023 INFO L495 AbstractCegarLoop]: Abstraction has 26909 states and 32345 transitions. [2023-12-19 01:54:44,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:44,024 INFO L276 IsEmpty]: Start isEmpty. Operand 26909 states and 32345 transitions. [2023-12-19 01:54:44,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-12-19 01:54:44,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:44,045 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:44,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 01:54:44,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 01:54:44,251 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:44,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:44,252 INFO L85 PathProgramCache]: Analyzing trace with hash -637914746, now seen corresponding path program 1 times [2023-12-19 01:54:44,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:44,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647026700] [2023-12-19 01:54:44,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:44,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:44,739 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 01:54:44,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:44,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647026700] [2023-12-19 01:54:44,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647026700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:44,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:44,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:44,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667548181] [2023-12-19 01:54:44,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:44,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:44,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:44,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:44,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:44,742 INFO L87 Difference]: Start difference. First operand 26909 states and 32345 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:45,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:45,592 INFO L93 Difference]: Finished difference Result 58717 states and 70303 transitions. [2023-12-19 01:54:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:45,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 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 252 [2023-12-19 01:54:45,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:45,628 INFO L225 Difference]: With dead ends: 58717 [2023-12-19 01:54:45,629 INFO L226 Difference]: Without dead ends: 32825 [2023-12-19 01:54:45,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:45,656 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 194 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:45,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 186 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:54:45,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32825 states. [2023-12-19 01:54:46,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32825 to 32812. [2023-12-19 01:54:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32812 states, 32811 states have (on average 1.1897839139313036) internal successors, (39038), 32811 states have internal predecessors, (39038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32812 states to 32812 states and 39038 transitions. [2023-12-19 01:54:46,135 INFO L78 Accepts]: Start accepts. Automaton has 32812 states and 39038 transitions. Word has length 252 [2023-12-19 01:54:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:46,135 INFO L495 AbstractCegarLoop]: Abstraction has 32812 states and 39038 transitions. [2023-12-19 01:54:46,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:46,136 INFO L276 IsEmpty]: Start isEmpty. Operand 32812 states and 39038 transitions. [2023-12-19 01:54:46,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-19 01:54:46,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:46,159 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:46,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 01:54:46,159 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:46,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1175265493, now seen corresponding path program 2 times [2023-12-19 01:54:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:46,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713757820] [2023-12-19 01:54:46,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:46,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:46,435 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-19 01:54:46,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:46,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713757820] [2023-12-19 01:54:46,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713757820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:46,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:46,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:54:46,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40301707] [2023-12-19 01:54:46,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:46,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:46,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:46,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:46,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:46,439 INFO L87 Difference]: Start difference. First operand 32812 states and 39038 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:46,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:46,799 INFO L93 Difference]: Finished difference Result 91914 states and 109451 transitions. [2023-12-19 01:54:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:46,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 259 [2023-12-19 01:54:46,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:46,866 INFO L225 Difference]: With dead ends: 91914 [2023-12-19 01:54:46,867 INFO L226 Difference]: Without dead ends: 60728 [2023-12-19 01:54:46,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:46,895 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 331 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:46,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 963 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 01:54:46,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60728 states. [2023-12-19 01:54:47,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60728 to 60725. [2023-12-19 01:54:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60725 states, 60724 states have (on average 1.1736875041169883) internal successors, (71271), 60724 states have internal predecessors, (71271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:47,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60725 states to 60725 states and 71271 transitions. [2023-12-19 01:54:47,781 INFO L78 Accepts]: Start accepts. Automaton has 60725 states and 71271 transitions. Word has length 259 [2023-12-19 01:54:47,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:47,781 INFO L495 AbstractCegarLoop]: Abstraction has 60725 states and 71271 transitions. [2023-12-19 01:54:47,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:47,782 INFO L276 IsEmpty]: Start isEmpty. Operand 60725 states and 71271 transitions. [2023-12-19 01:54:47,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-19 01:54:47,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:47,826 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:47,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 01:54:47,827 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:47,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:47,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1560097233, now seen corresponding path program 1 times [2023-12-19 01:54:47,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:47,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680717442] [2023-12-19 01:54:47,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:47,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 73 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 01:54:48,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:48,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680717442] [2023-12-19 01:54:48,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680717442] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:54:48,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355335411] [2023-12-19 01:54:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:48,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:54:48,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:54:48,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:54:48,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 01:54:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:48,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 01:54:48,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:54:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 01:54:48,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:54:48,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355335411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:48,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:54:48,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-19 01:54:48,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463044687] [2023-12-19 01:54:48,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:48,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:48,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:48,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:48,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:54:48,589 INFO L87 Difference]: Start difference. First operand 60725 states and 71271 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:49,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:49,552 INFO L93 Difference]: Finished difference Result 114713 states and 134560 transitions. [2023-12-19 01:54:49,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:49,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2023-12-19 01:54:49,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:49,617 INFO L225 Difference]: With dead ends: 114713 [2023-12-19 01:54:49,617 INFO L226 Difference]: Without dead ends: 55208 [2023-12-19 01:54:49,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:54:49,636 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 248 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:49,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 378 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:54:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55208 states. [2023-12-19 01:54:50,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55208 to 52768. [2023-12-19 01:54:50,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52768 states, 52767 states have (on average 1.1395379688062615) internal successors, (60130), 52767 states have internal predecessors, (60130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:50,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52768 states to 52768 states and 60130 transitions. [2023-12-19 01:54:50,359 INFO L78 Accepts]: Start accepts. Automaton has 52768 states and 60130 transitions. Word has length 266 [2023-12-19 01:54:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:50,359 INFO L495 AbstractCegarLoop]: Abstraction has 52768 states and 60130 transitions. [2023-12-19 01:54:50,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:50,359 INFO L276 IsEmpty]: Start isEmpty. Operand 52768 states and 60130 transitions. [2023-12-19 01:54:50,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-19 01:54:50,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:50,395 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:50,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 01:54:50,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:54:50,596 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:50,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:50,596 INFO L85 PathProgramCache]: Analyzing trace with hash -34169011, now seen corresponding path program 1 times [2023-12-19 01:54:50,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:50,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742755806] [2023-12-19 01:54:50,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:50,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:50,940 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 01:54:50,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:50,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742755806] [2023-12-19 01:54:50,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742755806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:50,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:50,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:50,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223376327] [2023-12-19 01:54:50,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:50,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:50,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:50,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:50,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:50,942 INFO L87 Difference]: Start difference. First operand 52768 states and 60130 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:51,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:51,906 INFO L93 Difference]: Finished difference Result 118121 states and 135473 transitions. [2023-12-19 01:54:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:51,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 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 268 [2023-12-19 01:54:51,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:51,993 INFO L225 Difference]: With dead ends: 118121 [2023-12-19 01:54:51,993 INFO L226 Difference]: Without dead ends: 66777 [2023-12-19 01:54:52,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:52,033 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 203 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:52,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 164 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:54:52,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66777 states. [2023-12-19 01:54:52,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66777 to 64743. [2023-12-19 01:54:52,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64743 states, 64742 states have (on average 1.1198758147724814) internal successors, (72503), 64742 states have internal predecessors, (72503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64743 states to 64743 states and 72503 transitions. [2023-12-19 01:54:53,039 INFO L78 Accepts]: Start accepts. Automaton has 64743 states and 72503 transitions. Word has length 268 [2023-12-19 01:54:53,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:53,039 INFO L495 AbstractCegarLoop]: Abstraction has 64743 states and 72503 transitions. [2023-12-19 01:54:53,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:53,039 INFO L276 IsEmpty]: Start isEmpty. Operand 64743 states and 72503 transitions. [2023-12-19 01:54:53,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-12-19 01:54:53,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:53,079 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:53,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 01:54:53,079 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:53,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:53,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1631254998, now seen corresponding path program 1 times [2023-12-19 01:54:53,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:53,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612440779] [2023-12-19 01:54:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:53,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:53,724 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:54:53,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:53,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612440779] [2023-12-19 01:54:53,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612440779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:53,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:53,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:53,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858932658] [2023-12-19 01:54:53,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:53,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:53,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:53,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:53,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:53,726 INFO L87 Difference]: Start difference. First operand 64743 states and 72503 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:54,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:54,574 INFO L93 Difference]: Finished difference Result 132751 states and 148425 transitions. [2023-12-19 01:54:54,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:54,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 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 272 [2023-12-19 01:54:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:54,780 INFO L225 Difference]: With dead ends: 132751 [2023-12-19 01:54:54,780 INFO L226 Difference]: Without dead ends: 69838 [2023-12-19 01:54:54,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:54,816 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 144 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:54,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 203 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 01:54:54,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69838 states. [2023-12-19 01:54:55,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69838 to 69625. [2023-12-19 01:54:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69625 states, 69624 states have (on average 1.1156928645294726) internal successors, (77679), 69624 states have internal predecessors, (77679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:55,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69625 states to 69625 states and 77679 transitions. [2023-12-19 01:54:55,873 INFO L78 Accepts]: Start accepts. Automaton has 69625 states and 77679 transitions. Word has length 272 [2023-12-19 01:54:55,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:55,874 INFO L495 AbstractCegarLoop]: Abstraction has 69625 states and 77679 transitions. [2023-12-19 01:54:55,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:55,874 INFO L276 IsEmpty]: Start isEmpty. Operand 69625 states and 77679 transitions. [2023-12-19 01:54:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-19 01:54:55,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:55,916 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:55,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 01:54:55,917 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:55,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:55,917 INFO L85 PathProgramCache]: Analyzing trace with hash 402824193, now seen corresponding path program 1 times [2023-12-19 01:54:55,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:55,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058505128] [2023-12-19 01:54:55,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:55,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-12-19 01:54:56,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:56,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058505128] [2023-12-19 01:54:56,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058505128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:56,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:56,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:54:56,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750727635] [2023-12-19 01:54:56,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:56,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:56,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:56,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:56,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:56,218 INFO L87 Difference]: Start difference. First operand 69625 states and 77679 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:57,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:57,289 INFO L93 Difference]: Finished difference Result 140079 states and 156386 transitions. [2023-12-19 01:54:57,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:57,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2023-12-19 01:54:57,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:54:57,370 INFO L225 Difference]: With dead ends: 140079 [2023-12-19 01:54:57,370 INFO L226 Difference]: Without dead ends: 71880 [2023-12-19 01:54:57,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:57,416 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 214 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:54:57,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 388 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:54:57,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71880 states. [2023-12-19 01:54:58,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71880 to 59055. [2023-12-19 01:54:58,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59055 states, 59054 states have (on average 1.1195177295356793) internal successors, (66112), 59054 states have internal predecessors, (66112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59055 states to 59055 states and 66112 transitions. [2023-12-19 01:54:58,431 INFO L78 Accepts]: Start accepts. Automaton has 59055 states and 66112 transitions. Word has length 306 [2023-12-19 01:54:58,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:54:58,431 INFO L495 AbstractCegarLoop]: Abstraction has 59055 states and 66112 transitions. [2023-12-19 01:54:58,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 59055 states and 66112 transitions. [2023-12-19 01:54:58,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-19 01:54:58,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:54:58,472 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:54:58,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 01:54:58,472 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:54:58,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:54:58,473 INFO L85 PathProgramCache]: Analyzing trace with hash -71841901, now seen corresponding path program 1 times [2023-12-19 01:54:58,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:54:58,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894894717] [2023-12-19 01:54:58,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:54:58,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:54:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:54:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-12-19 01:54:58,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:54:58,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894894717] [2023-12-19 01:54:58,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894894717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:54:58,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:54:58,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:54:58,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322995977] [2023-12-19 01:54:58,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:54:58,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:54:58,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:54:58,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:54:58,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:54:58,972 INFO L87 Difference]: Start difference. First operand 59055 states and 66112 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:54:59,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:54:59,998 INFO L93 Difference]: Finished difference Result 138074 states and 154675 transitions. [2023-12-19 01:54:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:54:59,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2023-12-19 01:54:59,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:55:00,114 INFO L225 Difference]: With dead ends: 138074 [2023-12-19 01:55:00,115 INFO L226 Difference]: Without dead ends: 83900 [2023-12-19 01:55:00,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:55:00,158 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 240 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:55:00,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 211 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:55:00,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83900 states. [2023-12-19 01:55:01,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83900 to 83470. [2023-12-19 01:55:01,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83470 states, 83469 states have (on average 1.1168337945824198) internal successors, (93221), 83469 states have internal predecessors, (93221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:01,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83470 states to 83470 states and 93221 transitions. [2023-12-19 01:55:01,295 INFO L78 Accepts]: Start accepts. Automaton has 83470 states and 93221 transitions. Word has length 306 [2023-12-19 01:55:01,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:55:01,295 INFO L495 AbstractCegarLoop]: Abstraction has 83470 states and 93221 transitions. [2023-12-19 01:55:01,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:01,295 INFO L276 IsEmpty]: Start isEmpty. Operand 83470 states and 93221 transitions. [2023-12-19 01:55:01,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-19 01:55:01,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:55:01,339 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:55:01,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 01:55:01,339 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:55:01,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:55:01,340 INFO L85 PathProgramCache]: Analyzing trace with hash -422170163, now seen corresponding path program 1 times [2023-12-19 01:55:01,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:55:01,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946618639] [2023-12-19 01:55:01,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:01,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:55:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-19 01:55:01,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:55:01,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946618639] [2023-12-19 01:55:01,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946618639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:55:01,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:55:01,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:55:01,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250765087] [2023-12-19 01:55:01,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:55:01,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 01:55:01,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:55:01,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 01:55:01,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:55:01,833 INFO L87 Difference]: Start difference. First operand 83470 states and 93221 transitions. Second operand has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:02,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:55:02,879 INFO L93 Difference]: Finished difference Result 138374 states and 154687 transitions. [2023-12-19 01:55:02,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 01:55:02,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 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 316 [2023-12-19 01:55:02,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:55:02,934 INFO L225 Difference]: With dead ends: 138374 [2023-12-19 01:55:02,934 INFO L226 Difference]: Without dead ends: 51458 [2023-12-19 01:55:02,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:55:02,975 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 441 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:55:02,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 58 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:55:03,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51458 states. [2023-12-19 01:55:03,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51458 to 42322. [2023-12-19 01:55:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42322 states, 42321 states have (on average 1.06864204532029) internal successors, (45226), 42321 states have internal predecessors, (45226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:03,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42322 states to 42322 states and 45226 transitions. [2023-12-19 01:55:03,565 INFO L78 Accepts]: Start accepts. Automaton has 42322 states and 45226 transitions. Word has length 316 [2023-12-19 01:55:03,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:55:03,566 INFO L495 AbstractCegarLoop]: Abstraction has 42322 states and 45226 transitions. [2023-12-19 01:55:03,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:03,566 INFO L276 IsEmpty]: Start isEmpty. Operand 42322 states and 45226 transitions. [2023-12-19 01:55:03,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2023-12-19 01:55:03,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:55:03,585 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:55:03,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 01:55:03,585 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:55:03,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:55:03,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1011551639, now seen corresponding path program 1 times [2023-12-19 01:55:03,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:55:03,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506654662] [2023-12-19 01:55:03,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:03,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:55:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:04,057 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 141 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 01:55:04,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:55:04,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506654662] [2023-12-19 01:55:04,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506654662] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:55:04,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715459000] [2023-12-19 01:55:04,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:04,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:55:04,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:55:04,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:55:04,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 01:55:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:04,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 01:55:04,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:55:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 01:55:04,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:55:04,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715459000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:55:04,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:55:04,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-19 01:55:04,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561490553] [2023-12-19 01:55:04,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:55:04,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:55:04,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:55:04,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:55:04,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:55:04,348 INFO L87 Difference]: Start difference. First operand 42322 states and 45226 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:05,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:55:05,130 INFO L93 Difference]: Finished difference Result 82839 states and 88558 transitions. [2023-12-19 01:55:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:55:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 333 [2023-12-19 01:55:05,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:55:05,172 INFO L225 Difference]: With dead ends: 82839 [2023-12-19 01:55:05,172 INFO L226 Difference]: Without dead ends: 41330 [2023-12-19 01:55:05,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:55:05,194 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 129 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:55:05,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 301 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 01:55:05,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41330 states. [2023-12-19 01:55:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41330 to 41104. [2023-12-19 01:55:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41104 states, 41103 states have (on average 1.0672700289516581) internal successors, (43868), 41103 states have internal predecessors, (43868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:05,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41104 states to 41104 states and 43868 transitions. [2023-12-19 01:55:05,697 INFO L78 Accepts]: Start accepts. Automaton has 41104 states and 43868 transitions. Word has length 333 [2023-12-19 01:55:05,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:55:05,697 INFO L495 AbstractCegarLoop]: Abstraction has 41104 states and 43868 transitions. [2023-12-19 01:55:05,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 41104 states and 43868 transitions. [2023-12-19 01:55:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-19 01:55:05,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:55:05,721 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:55:05,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 01:55:05,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:55:05,928 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:55:05,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:55:05,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1785914532, now seen corresponding path program 1 times [2023-12-19 01:55:05,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:55:05,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374212357] [2023-12-19 01:55:05,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:05,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:55:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-19 01:55:06,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:55:06,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374212357] [2023-12-19 01:55:06,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374212357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:55:06,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:55:06,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:55:06,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407606303] [2023-12-19 01:55:06,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:55:06,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:55:06,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:55:06,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:55:06,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:55:06,178 INFO L87 Difference]: Start difference. First operand 41104 states and 43868 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 2 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) [2023-12-19 01:55:06,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:55:06,683 INFO L93 Difference]: Finished difference Result 107438 states and 114547 transitions. [2023-12-19 01:55:06,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:55:06,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 2 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 369 [2023-12-19 01:55:06,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:55:06,755 INFO L225 Difference]: With dead ends: 107438 [2023-12-19 01:55:06,755 INFO L226 Difference]: Without dead ends: 68165 [2023-12-19 01:55:06,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:55:06,785 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 175 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:55:06,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 468 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 01:55:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68165 states. [2023-12-19 01:55:07,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68165 to 65314. [2023-12-19 01:55:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65314 states, 65313 states have (on average 1.0642904169154686) internal successors, (69512), 65313 states have internal predecessors, (69512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:07,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65314 states to 65314 states and 69512 transitions. [2023-12-19 01:55:07,843 INFO L78 Accepts]: Start accepts. Automaton has 65314 states and 69512 transitions. Word has length 369 [2023-12-19 01:55:07,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:55:07,843 INFO L495 AbstractCegarLoop]: Abstraction has 65314 states and 69512 transitions. [2023-12-19 01:55:07,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 2 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) [2023-12-19 01:55:07,843 INFO L276 IsEmpty]: Start isEmpty. Operand 65314 states and 69512 transitions. [2023-12-19 01:55:07,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-19 01:55:07,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:55:07,866 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:55:07,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 01:55:07,866 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:55:07,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:55:07,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1105779681, now seen corresponding path program 1 times [2023-12-19 01:55:07,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:55:07,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870605711] [2023-12-19 01:55:07,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:07,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:55:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:08,341 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 190 proven. 9 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 01:55:08,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:55:08,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870605711] [2023-12-19 01:55:08,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870605711] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:55:08,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225596310] [2023-12-19 01:55:08,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:08,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:55:08,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:55:08,343 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:55:08,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 01:55:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:08,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 01:55:08,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:55:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-19 01:55:08,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:55:08,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225596310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:55:08,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:55:08,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 01:55:08,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645203987] [2023-12-19 01:55:08,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:55:08,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:55:08,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:55:08,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:55:08,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:55:08,739 INFO L87 Difference]: Start difference. First operand 65314 states and 69512 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:09,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:55:09,542 INFO L93 Difference]: Finished difference Result 123515 states and 131358 transitions. [2023-12-19 01:55:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:55:09,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 377 [2023-12-19 01:55:09,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:55:09,619 INFO L225 Difference]: With dead ends: 123515 [2023-12-19 01:55:09,619 INFO L226 Difference]: Without dead ends: 60029 [2023-12-19 01:55:09,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:55:09,645 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 56 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:55:09,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 77 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 01:55:09,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60029 states. [2023-12-19 01:55:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60029 to 51088. [2023-12-19 01:55:10,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51088 states, 51087 states have (on average 1.0469199600681192) internal successors, (53484), 51087 states have internal predecessors, (53484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:10,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51088 states to 51088 states and 53484 transitions. [2023-12-19 01:55:10,364 INFO L78 Accepts]: Start accepts. Automaton has 51088 states and 53484 transitions. Word has length 377 [2023-12-19 01:55:10,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:55:10,365 INFO L495 AbstractCegarLoop]: Abstraction has 51088 states and 53484 transitions. [2023-12-19 01:55:10,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 51088 states and 53484 transitions. [2023-12-19 01:55:10,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-12-19 01:55:10,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:55:10,386 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:55:10,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 01:55:10,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-12-19 01:55:10,587 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:55:10,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:55:10,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2104668619, now seen corresponding path program 1 times [2023-12-19 01:55:10,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:55:10,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083068504] [2023-12-19 01:55:10,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:10,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:55:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-12-19 01:55:11,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:55:11,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083068504] [2023-12-19 01:55:11,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083068504] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:55:11,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038746676] [2023-12-19 01:55:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:11,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:55:11,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:55:11,072 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:55:11,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 01:55:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:11,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 01:55:11,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:55:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-19 01:55:11,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:55:11,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038746676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:55:11,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:55:11,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-19 01:55:11,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811611612] [2023-12-19 01:55:11,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:55:11,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:55:11,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:55:11,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:55:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:55:11,484 INFO L87 Difference]: Start difference. First operand 51088 states and 53484 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:12,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:55:12,174 INFO L93 Difference]: Finished difference Result 100959 states and 105693 transitions. [2023-12-19 01:55:12,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:55:12,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 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 402 [2023-12-19 01:55:12,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:55:12,233 INFO L225 Difference]: With dead ends: 100959 [2023-12-19 01:55:12,233 INFO L226 Difference]: Without dead ends: 52718 [2023-12-19 01:55:12,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:55:12,260 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 67 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:55:12,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 50 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 01:55:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52718 states. [2023-12-19 01:55:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52718 to 49866. [2023-12-19 01:55:12,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49866 states, 49865 states have (on average 1.0473678933119421) internal successors, (52227), 49865 states have internal predecessors, (52227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49866 states to 49866 states and 52227 transitions. [2023-12-19 01:55:12,872 INFO L78 Accepts]: Start accepts. Automaton has 49866 states and 52227 transitions. Word has length 402 [2023-12-19 01:55:12,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:55:12,873 INFO L495 AbstractCegarLoop]: Abstraction has 49866 states and 52227 transitions. [2023-12-19 01:55:12,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 49866 states and 52227 transitions. [2023-12-19 01:55:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2023-12-19 01:55:12,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:55:12,906 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:55:12,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 01:55:13,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:55:13,107 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:55:13,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:55:13,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1186456000, now seen corresponding path program 1 times [2023-12-19 01:55:13,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:55:13,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878917974] [2023-12-19 01:55:13,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:13,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:55:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:13,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 721 proven. 18 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-12-19 01:55:13,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:55:13,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878917974] [2023-12-19 01:55:13,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878917974] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:55:13,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725735871] [2023-12-19 01:55:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:13,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:55:13,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:55:13,905 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:55:13,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 01:55:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:14,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 01:55:14,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:55:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 618 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2023-12-19 01:55:14,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:55:14,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725735871] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:55:14,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:55:14,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-19 01:55:14,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383680183] [2023-12-19 01:55:14,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:55:14,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:55:14,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:55:14,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:55:14,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:55:14,484 INFO L87 Difference]: Start difference. First operand 49866 states and 52227 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 2 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:15,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:55:15,001 INFO L93 Difference]: Finished difference Result 137181 states and 143788 transitions. [2023-12-19 01:55:15,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:55:15,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 2 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 611 [2023-12-19 01:55:15,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:55:15,100 INFO L225 Difference]: With dead ends: 137181 [2023-12-19 01:55:15,100 INFO L226 Difference]: Without dead ends: 90162 [2023-12-19 01:55:15,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:55:15,146 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 159 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:55:15,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 467 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 01:55:15,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90162 states. [2023-12-19 01:55:16,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90162 to 87306. [2023-12-19 01:55:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87306 states, 87305 states have (on average 1.0485081037741253) internal successors, (91540), 87305 states have internal predecessors, (91540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:16,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87306 states to 87306 states and 91540 transitions. [2023-12-19 01:55:16,236 INFO L78 Accepts]: Start accepts. Automaton has 87306 states and 91540 transitions. Word has length 611 [2023-12-19 01:55:16,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:55:16,236 INFO L495 AbstractCegarLoop]: Abstraction has 87306 states and 91540 transitions. [2023-12-19 01:55:16,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 2 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:16,236 INFO L276 IsEmpty]: Start isEmpty. Operand 87306 states and 91540 transitions. [2023-12-19 01:55:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2023-12-19 01:55:16,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:55:16,323 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:55:16,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 01:55:16,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:55:16,532 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:55:16,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:55:16,532 INFO L85 PathProgramCache]: Analyzing trace with hash -776694847, now seen corresponding path program 1 times [2023-12-19 01:55:16,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:55:16,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465213594] [2023-12-19 01:55:16,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:55:16,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:55:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:55:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1178 backedges. 840 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-19 01:55:17,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:55:17,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465213594] [2023-12-19 01:55:17,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465213594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:55:17,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:55:17,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:55:17,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799248680] [2023-12-19 01:55:17,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:55:17,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 01:55:17,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:55:17,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 01:55:17,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:55:17,460 INFO L87 Difference]: Start difference. First operand 87306 states and 91540 transitions. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:18,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:55:18,775 INFO L93 Difference]: Finished difference Result 230560 states and 241957 transitions. [2023-12-19 01:55:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 01:55:18,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 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 660 [2023-12-19 01:55:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:55:18,776 INFO L225 Difference]: With dead ends: 230560 [2023-12-19 01:55:18,776 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 01:55:18,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:55:18,843 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 302 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:55:18,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 422 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:55:18,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 01:55:18,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 01:55:18,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:18,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 01:55:18,844 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 660 [2023-12-19 01:55:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:55:18,845 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 01:55:18,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 01:55:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 01:55:18,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 01:55:18,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 01:55:18,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-19 01:55:18,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 01:56:21,155 WARN L293 SmtUtils]: Spent 1.04m on a formula simplification. DAG size of input: 1338 DAG size of output: 1503 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 01:56:47,374 WARN L293 SmtUtils]: Spent 26.21s on a formula simplification. DAG size of input: 1503 DAG size of output: 100 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-19 01:56:47,379 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,379 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,379 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2023-12-19 01:56:47,380 INFO L899 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,381 INFO L899 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,382 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,383 INFO L899 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,384 INFO L899 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,384 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,384 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,384 INFO L899 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,384 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,384 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,385 INFO L899 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,385 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,385 INFO L899 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,385 INFO L899 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,385 INFO L899 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,385 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,387 INFO L899 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,387 INFO L899 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,387 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,387 INFO L899 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,387 INFO L899 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,387 INFO L899 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,387 INFO L899 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,388 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,389 INFO L899 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1642) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2023-12-19 01:56:47,390 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2023-12-19 01:56:47,391 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,391 INFO L899 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,391 INFO L899 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,391 INFO L899 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,391 INFO L899 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,391 INFO L899 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,391 INFO L899 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,392 INFO L899 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,392 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,392 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,392 INFO L899 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,392 INFO L899 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2023-12-19 01:56:47,393 INFO L899 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2023-12-19 01:56:47,393 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,393 INFO L899 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,393 INFO L899 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,393 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2023-12-19 01:56:47,393 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,393 INFO L899 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,394 INFO L899 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L1662(lines 1662 1679) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,395 INFO L899 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,396 INFO L899 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,396 INFO L899 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,396 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,396 INFO L899 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,396 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,396 INFO L899 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,396 INFO L899 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2023-12-19 01:56:47,396 INFO L899 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2023-12-19 01:56:47,396 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L895 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse18 (= ~a2~0 1)) (.cse19 (<= ~a7~0 0)) (.cse8 (= ~a26~0 0)) (.cse10 (<= 1 ~a3~0)) (.cse5 (<= ~a12~0 0)) (.cse15 (<= ~a23~0 0)) (.cse17 (= ~a3~0 1)) (.cse13 (<= ~a27~0 0)) (.cse3 (= ~a16~0 1)) (.cse20 (= ~a8~0 1)) (.cse16 (= ~a25~0 1)) (.cse12 (<= ~a11~0 0)) (.cse14 (= ~a3~0 0)) (.cse7 (<= ~a6~0 0)) (.cse0 (= ~a26~0 1)) (.cse1 (= ~a5~0 1)) (.cse9 (= ~a12~0 1)) (.cse2 (<= ~a3~0 1)) (.cse4 (= ~a11~0 1)) (.cse11 (= ~a6~0 1)) (.cse6 (= ~a27~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 (= ~a8~0 0) .cse3 .cse11 .cse12 .cse13) (and .cse1 .cse4 .cse11 .cse5 .cse6 .cse14) (and .cse0 .cse1 .cse2 .cse4 .cse15 .cse5 .cse6 .cse7) (and .cse0 .cse16 .cse1 .cse9 .cse4 .cse11 (= ~a14~0 1) .cse14 .cse13) (and .cse0 .cse1 .cse9 .cse10 .cse4 .cse13 .cse7) (and .cse8 .cse1 .cse9 .cse2 .cse12 .cse13 .cse7) (and .cse8 .cse1 .cse10 .cse12 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse10 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse9 .cse3 .cse4 .cse15 .cse14 .cse13 .cse7) (and .cse8 .cse1 .cse10 .cse4 .cse5 .cse13 .cse7) (and .cse0 .cse1 .cse9 .cse11 .cse12 .cse6) (and .cse0 .cse1 .cse9 .cse12 .cse14 .cse7) (and .cse16 .cse1 .cse9 .cse3 .cse4 .cse17 .cse11 .cse13) (and .cse1 .cse3 .cse4 .cse5 .cse14 .cse13 .cse7) (and .cse10 (or (and .cse1 .cse4 .cse11 .cse5 .cse13) (and .cse1 .cse4 .cse11 .cse5 .cse6))) (and .cse1 .cse11 .cse12 .cse5 .cse14 .cse13) (and .cse0 .cse16 .cse9 .cse2 .cse18 .cse11 .cse12 .cse6) (and .cse0 .cse1 .cse9 .cse10 .cse11 .cse12 .cse13) (and .cse0 .cse16 .cse9 .cse2 .cse18 .cse4 .cse11 .cse6) (and .cse19 .cse8 .cse1 .cse9 .cse3 .cse11 .cse12 .cse14 .cse13) (and .cse1 .cse10 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse9 .cse15 .cse17 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse9 .cse4 .cse15 .cse11 .cse14 .cse13) (and .cse1 .cse4 .cse17 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 (= ~a11~0 0) .cse6 .cse7) (and .cse0 .cse1 .cse11 .cse12 .cse5 .cse6) (and .cse0 .cse1 .cse9 .cse3 .cse4 .cse11 .cse6) (and .cse0 .cse1 .cse9 .cse10 .cse12 .cse6 .cse7) (and .cse0 .cse1 .cse9 .cse3 .cse4 .cse11 .cse14 .cse13) (and .cse1 (or (and .cse8 .cse12 .cse14 .cse7) (and .cse12 .cse6 .cse14 .cse7)) .cse5) (and .cse0 .cse1 .cse9 .cse4 .cse6 .cse7) (and .cse19 .cse0 .cse1 .cse18 .cse4 .cse11 (= ~a29~0 1) .cse5 .cse6 .cse20) (and .cse1 .cse9 .cse10 .cse15 .cse11 .cse12 .cse6) (and .cse0 .cse1 .cse9 .cse10 .cse12 .cse13 .cse7) (and .cse1 .cse4 .cse5 .cse6 .cse14 .cse7) (and .cse19 .cse1 .cse9 .cse10 .cse3 .cse4 .cse11 .cse6) (and .cse8 .cse1 .cse10 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse10 .cse11 .cse12 .cse5 .cse13) (and .cse1 .cse3 .cse4 .cse15 .cse17 .cse5 .cse13 .cse7) (and .cse1 .cse10 .cse11 .cse12 .cse5 .cse6) (and .cse1 .cse4 .cse11 .cse5 .cse14 .cse13) (and .cse1 .cse17 .cse12 .cse5 .cse13 .cse7) (and .cse1 .cse9 .cse4 .cse15 .cse11 .cse6 .cse14) (and .cse0 .cse1 .cse10 .cse12 .cse5 .cse6 .cse7) (and .cse1 .cse11 .cse12 .cse5 .cse6 .cse14) (and .cse1 .cse9 .cse4 .cse15 .cse17 .cse13 .cse7) (and .cse0 .cse1 .cse9 .cse3 .cse4 .cse20 .cse14 .cse7) (and .cse0 .cse16 .cse9 (= ~a12~0 ~a2~0) .cse12 .cse6 .cse14 .cse7) (and .cse0 .cse1 .cse9 .cse2 .cse4 .cse11 .cse6))) [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,401 INFO L899 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2023-12-19 01:56:47,402 INFO L899 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,403 INFO L899 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,404 INFO L899 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,405 INFO L899 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,406 INFO L899 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2023-12-19 01:56:47,409 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:56:47,411 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 01:56:47,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 01:56:47 BoogieIcfgContainer [2023-12-19 01:56:47,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 01:56:47,455 INFO L158 Benchmark]: Toolchain (without parser) took 144442.30ms. Allocated memory was 291.5MB in the beginning and 7.6GB in the end (delta: 7.3GB). Free memory was 230.3MB in the beginning and 3.2GB in the end (delta: -3.0GB). Peak memory consumption was 6.8GB. Max. memory is 8.0GB. [2023-12-19 01:56:47,455 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 190.8MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 01:56:47,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.93ms. Allocated memory is still 291.5MB. Free memory was 229.9MB in the beginning and 223.4MB in the end (delta: 6.5MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2023-12-19 01:56:47,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.86ms. Allocated memory is still 291.5MB. Free memory was 223.4MB in the beginning and 208.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-19 01:56:47,455 INFO L158 Benchmark]: Boogie Preprocessor took 163.96ms. Allocated memory is still 291.5MB. Free memory was 208.3MB in the beginning and 196.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 01:56:47,456 INFO L158 Benchmark]: RCFGBuilder took 1792.64ms. Allocated memory was 291.5MB in the beginning and 401.6MB in the end (delta: 110.1MB). Free memory was 195.7MB in the beginning and 319.6MB in the end (delta: -123.9MB). Peak memory consumption was 97.9MB. Max. memory is 8.0GB. [2023-12-19 01:56:47,456 INFO L158 Benchmark]: TraceAbstraction took 141615.03ms. Allocated memory was 401.6MB in the beginning and 7.6GB in the end (delta: 7.2GB). Free memory was 319.1MB in the beginning and 3.2GB in the end (delta: -2.9GB). Peak memory consumption was 6.8GB. Max. memory is 8.0GB. [2023-12-19 01:56:47,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 190.8MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 741.93ms. Allocated memory is still 291.5MB. Free memory was 229.9MB in the beginning and 223.4MB in the end (delta: 6.5MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 121.86ms. Allocated memory is still 291.5MB. Free memory was 223.4MB in the beginning and 208.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 163.96ms. Allocated memory is still 291.5MB. Free memory was 208.3MB in the beginning and 196.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1792.64ms. Allocated memory was 291.5MB in the beginning and 401.6MB in the end (delta: 110.1MB). Free memory was 195.7MB in the beginning and 319.6MB in the end (delta: -123.9MB). Peak memory consumption was 97.9MB. Max. memory is 8.0GB. * TraceAbstraction took 141615.03ms. Allocated memory was 401.6MB in the beginning and 7.6GB in the end (delta: 7.2GB). Free memory was 319.1MB in the beginning and 3.2GB in the end (delta: -2.9GB). Peak memory consumption was 6.8GB. 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 - PositiveResult [Line: 1642]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 141.5s, OverallIterations: 26, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.7s, AutomataDifference: 22.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 88.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5053 SdHoareTripleChecker+Valid, 14.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5053 mSDsluCounter, 7165 SdHoareTripleChecker+Invalid, 12.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1451 mSDsCounter, 2036 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14098 IncrementalHoareTripleChecker+Invalid, 16134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2036 mSolverCounterUnsat, 5714 mSDtfsCounter, 14098 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2536 GetRequests, 2493 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87306occurred in iteration=25, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.6s AutomataMinimizationTime, 26 MinimizatonAttempts, 49403 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 749 NumberOfFragments, 1155 HoareAnnotationTreeSize, 1 FormulaSimplifications, 36281 FormulaSimplificationTreeSizeReduction, 62.3s HoareSimplificationTime, 1 FormulaSimplificationsInter, 53673 FormulaSimplificationTreeSizeReductionInter, 26.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 10189 NumberOfCodeBlocks, 10189 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 10156 ConstructedInterpolants, 0 QuantifiedInterpolants, 18473 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4377 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 33 InterpolantComputations, 26 PerfectInterpolantSequences, 6630/6687 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((a26 == 1) && (a5 == 1)) && (a3 <= 1)) && (a16 == 1)) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0)) || (((((((((a26 == 0) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a8 == 0)) && (a16 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 <= 0))) || ((((((a5 == 1) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a3 <= 1)) && (a11 == 1)) && (a23 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((((a26 == 1) && (a25 == 1)) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a6 == 1)) && (a14 == 1)) && (a3 == 0)) && (a27 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a11 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a26 == 0) && (a5 == 1)) && (a12 == 1)) && (a3 <= 1)) && (a11 <= 0)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a26 == 0) && (a5 == 1)) && (1 <= a3)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a3 == 0)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a26 == 0) && (a5 == 1)) && (1 <= a3)) && (a11 == 1)) && (a12 <= 0)) && (a27 <= 0)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1))) || ((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a3 == 0)) && (a6 <= 0))) || ((((((((a25 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a27 <= 0))) || (((((((a5 == 1) && (a16 == 1)) && (a11 == 1)) && (a12 <= 0)) && (a3 == 0)) && (a27 <= 0)) && (a6 <= 0))) || ((1 <= a3) && ((((((a5 == 1) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 <= 0)) || (((((a5 == 1) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1))))) || ((((((a5 == 1) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a3 == 0)) && (a27 <= 0))) || ((((((((a26 == 1) && (a25 == 1)) && (a12 == 1)) && (a3 <= 1)) && (a2 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a6 == 1)) && (a11 <= 0)) && (a27 <= 0))) || ((((((((a26 == 1) && (a25 == 1)) && (a12 == 1)) && (a3 <= 1)) && (a2 == 1)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1))) || (((((((((a7 <= 0) && (a26 == 0)) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a3 == 0)) && (a27 <= 0))) || (((((((a5 == 1) && (1 <= a3)) && (a16 == 1)) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a3 == 0)) && (a27 <= 0))) || ((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((a26 == 0) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a11 == 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a11 <= 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a6 == 1)) && (a3 == 0)) && (a27 <= 0))) || (((a5 == 1) && (((((a26 == 0) && (a11 <= 0)) && (a3 == 0)) && (a6 <= 0)) || ((((a11 <= 0) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0)))) && (a12 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a27 == 1)) && (a6 <= 0))) || ((((((((((a7 <= 0) && (a26 == 1)) && (a5 == 1)) && (a2 == 1)) && (a11 == 1)) && (a6 == 1)) && (a29 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a8 == 1))) || (((((((a5 == 1) && (a12 == 1)) && (1 <= a3)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a11 <= 0)) && (a27 <= 0)) && (a6 <= 0))) || ((((((a5 == 1) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0))) || ((((((((a7 <= 0) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a16 == 1)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1))) || (((((((a26 == 0) && (a5 == 1)) && (1 <= a3)) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((a5 == 1) && (1 <= a3)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 <= 0))) || ((((((((a5 == 1) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a3 == 1)) && (a12 <= 0)) && (a27 <= 0)) && (a6 <= 0))) || ((((((a5 == 1) && (1 <= a3)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1))) || ((((((a5 == 1) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a3 == 0)) && (a27 <= 0))) || ((((((a5 == 1) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a27 == 1)) && (a3 == 0))) || (((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((a5 == 1) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0))) || (((((((a5 == 1) && (a12 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a3 == 1)) && (a27 <= 0)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a8 == 1)) && (a3 == 0)) && (a6 <= 0))) || ((((((((a26 == 1) && (a25 == 1)) && (a12 == 1)) && (a12 == a2)) && (a11 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 1)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1))) RESULT: Ultimate proved your program to be correct! [2023-12-19 01:56:47,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...