/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/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:55:18,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:55:18,157 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 15:55:18,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:55:18,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:55:18,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:55:18,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:55:18,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:55:18,190 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:55:18,204 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:55:18,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:55:18,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:55:18,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:55:18,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:55:18,205 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:55:18,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:55:18,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:55:18,206 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:55:18,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:55:18,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:55:18,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:55:18,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:55:18,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:55:18,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:55:18,208 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:55:18,208 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:55:18,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:55:18,209 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:55:18,209 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:55:18,209 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:55:18,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:55:18,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:55:18,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:55:18,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:55:18,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:55:18,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:55:18,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:55:18,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:55:18,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:55:18,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:55:18,211 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:55:18,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:55:18,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:55:18,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:55:18,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:55:18,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:55:18,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:55:18,438 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:55:18,439 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:55:18,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i [2023-12-19 15:55:19,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:55:19,720 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:55:19,720 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i [2023-12-19 15:55:19,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b482e3321/5bd88d54f8754c568a7c4393c859557f/FLAG8114959a9 [2023-12-19 15:55:19,741 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b482e3321/5bd88d54f8754c568a7c4393c859557f [2023-12-19 15:55:19,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:55:19,744 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:55:19,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:55:19,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:55:19,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:55:19,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:55:19" (1/1) ... [2023-12-19 15:55:19,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a046b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:19, skipping insertion in model container [2023-12-19 15:55:19,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:55:19" (1/1) ... [2023-12-19 15:55:19,782 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:55:19,909 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i[916,929] [2023-12-19 15:55:19,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:55:19,954 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:55:19,964 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i[916,929] [2023-12-19 15:55:20,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:55:20,026 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:55:20,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20 WrapperNode [2023-12-19 15:55:20,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:55:20,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:55:20,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:55:20,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:55:20,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,091 INFO L138 Inliner]: procedures = 26, calls = 162, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 463 [2023-12-19 15:55:20,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:55:20,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:55:20,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:55:20,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:55:20,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,121 INFO L175 MemorySlicer]: Split 130 memory accesses to 2 slices as follows [2, 128]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 19 writes are split as follows [0, 19]. [2023-12-19 15:55:20,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:55:20,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:55:20,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:55:20,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:55:20,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (1/1) ... [2023-12-19 15:55:20,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:55:20,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:20,187 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 15:55:20,206 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 15:55:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:55:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:55:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:55:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:55:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:55:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:55:20,218 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:55:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:55:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:55:20,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:55:20,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:55:20,326 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:55:20,327 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:55:20,701 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:55:20,734 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:55:20,734 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:55:20,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:55:20 BoogieIcfgContainer [2023-12-19 15:55:20,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:55:20,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:55:20,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:55:20,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:55:20,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:55:19" (1/3) ... [2023-12-19 15:55:20,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c3f8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:55:20, skipping insertion in model container [2023-12-19 15:55:20,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:55:20" (2/3) ... [2023-12-19 15:55:20,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c3f8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:55:20, skipping insertion in model container [2023-12-19 15:55:20,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:55:20" (3/3) ... [2023-12-19 15:55:20,741 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-90.i [2023-12-19 15:55:20,753 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:55:20,753 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:55:20,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:55:20,797 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;@3f911680, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:55:20,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:55:20,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:55:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:20,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:20,813 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:20,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:20,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:20,818 INFO L85 PathProgramCache]: Analyzing trace with hash 584961870, now seen corresponding path program 1 times [2023-12-19 15:55:20,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:20,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212068284] [2023-12-19 15:55:20,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:20,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:21,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:21,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212068284] [2023-12-19 15:55:21,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212068284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:21,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:21,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:55:21,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83207904] [2023-12-19 15:55:21,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:21,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:55:21,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:21,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:55:21,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:55:21,219 INFO L87 Difference]: Start difference. First operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:21,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:21,264 INFO L93 Difference]: Finished difference Result 205 states and 326 transitions. [2023-12-19 15:55:21,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:55:21,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2023-12-19 15:55:21,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:21,273 INFO L225 Difference]: With dead ends: 205 [2023-12-19 15:55:21,273 INFO L226 Difference]: Without dead ends: 102 [2023-12-19 15:55:21,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 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 15:55:21,279 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:21,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:55:21,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-19 15:55:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-12-19 15:55:21,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:55:21,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2023-12-19 15:55:21,323 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 148 [2023-12-19 15:55:21,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:21,324 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2023-12-19 15:55:21,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2023-12-19 15:55:21,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:55:21,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:21,334 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:21,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 15:55:21,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:21,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:21,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2029456678, now seen corresponding path program 1 times [2023-12-19 15:55:21,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:21,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337539373] [2023-12-19 15:55:21,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:21,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:21,702 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:21,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:21,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337539373] [2023-12-19 15:55:21,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337539373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:21,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:21,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:55:21,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889451550] [2023-12-19 15:55:21,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:21,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:55:21,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:21,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:55:21,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:55:21,709 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:21,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:21,786 INFO L93 Difference]: Finished difference Result 231 states and 339 transitions. [2023-12-19 15:55:21,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:55:21,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2023-12-19 15:55:21,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:21,793 INFO L225 Difference]: With dead ends: 231 [2023-12-19 15:55:21,793 INFO L226 Difference]: Without dead ends: 130 [2023-12-19 15:55:21,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:55:21,797 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 61 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:21,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 466 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:55:21,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-19 15:55:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 104. [2023-12-19 15:55:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:55:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2023-12-19 15:55:21,806 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 148 [2023-12-19 15:55:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:21,807 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2023-12-19 15:55:21,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:21,808 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2023-12-19 15:55:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:55:21,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:21,809 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:21,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 15:55:21,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:21,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:21,810 INFO L85 PathProgramCache]: Analyzing trace with hash 737193547, now seen corresponding path program 1 times [2023-12-19 15:55:21,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:21,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462434570] [2023-12-19 15:55:21,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:21,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:22,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462434570] [2023-12-19 15:55:22,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462434570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:22,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:22,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:55:22,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574933218] [2023-12-19 15:55:22,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:22,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:55:22,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:22,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:55:22,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:55:22,213 INFO L87 Difference]: Start difference. First operand 104 states and 151 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:22,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:22,531 INFO L93 Difference]: Finished difference Result 312 states and 453 transitions. [2023-12-19 15:55:22,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:55:22,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-19 15:55:22,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:22,534 INFO L225 Difference]: With dead ends: 312 [2023-12-19 15:55:22,534 INFO L226 Difference]: Without dead ends: 209 [2023-12-19 15:55:22,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:22,536 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 126 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:22,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 714 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:22,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-19 15:55:22,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 109. [2023-12-19 15:55:22,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:55:22,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2023-12-19 15:55:22,544 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 150 [2023-12-19 15:55:22,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:22,544 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2023-12-19 15:55:22,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:22,544 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2023-12-19 15:55:22,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:55:22,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:22,545 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:22,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 15:55:22,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:22,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:22,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1159895373, now seen corresponding path program 1 times [2023-12-19 15:55:22,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:22,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874715883] [2023-12-19 15:55:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:22,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:23,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:23,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874715883] [2023-12-19 15:55:23,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874715883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:23,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:23,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:23,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303252238] [2023-12-19 15:55:23,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:23,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:23,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:23,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:23,042 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:23,433 INFO L93 Difference]: Finished difference Result 311 states and 449 transitions. [2023-12-19 15:55:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:55:23,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-19 15:55:23,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:23,437 INFO L225 Difference]: With dead ends: 311 [2023-12-19 15:55:23,437 INFO L226 Difference]: Without dead ends: 203 [2023-12-19 15:55:23,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:55:23,442 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 361 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:23,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 229 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-19 15:55:23,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 111. [2023-12-19 15:55:23,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:55:23,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2023-12-19 15:55:23,456 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 150 [2023-12-19 15:55:23,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:23,456 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2023-12-19 15:55:23,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2023-12-19 15:55:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-19 15:55:23,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:23,457 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:23,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 15:55:23,458 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:23,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:23,458 INFO L85 PathProgramCache]: Analyzing trace with hash -685099385, now seen corresponding path program 1 times [2023-12-19 15:55:23,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:23,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331966424] [2023-12-19 15:55:23,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:23,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:24,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:24,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331966424] [2023-12-19 15:55:24,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331966424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:24,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:24,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:55:24,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829613251] [2023-12-19 15:55:24,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:24,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:55:24,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:24,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:55:24,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:55:24,230 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:24,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:24,640 INFO L93 Difference]: Finished difference Result 354 states and 508 transitions. [2023-12-19 15:55:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:55:24,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2023-12-19 15:55:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:24,642 INFO L225 Difference]: With dead ends: 354 [2023-12-19 15:55:24,642 INFO L226 Difference]: Without dead ends: 244 [2023-12-19 15:55:24,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:55:24,643 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 169 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:24,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 647 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:55:24,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-19 15:55:24,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 145. [2023-12-19 15:55:24,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 123 states have (on average 1.3577235772357723) internal successors, (167), 123 states have internal predecessors, (167), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:55:24,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 207 transitions. [2023-12-19 15:55:24,669 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 207 transitions. Word has length 151 [2023-12-19 15:55:24,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:24,670 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 207 transitions. [2023-12-19 15:55:24,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:24,671 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 207 transitions. [2023-12-19 15:55:24,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-19 15:55:24,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:24,672 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:24,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 15:55:24,672 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:24,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:24,673 INFO L85 PathProgramCache]: Analyzing trace with hash -943264823, now seen corresponding path program 1 times [2023-12-19 15:55:24,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:24,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805953490] [2023-12-19 15:55:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:24,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:25,347 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:25,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:25,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805953490] [2023-12-19 15:55:25,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805953490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:25,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:25,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:55:25,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101513179] [2023-12-19 15:55:25,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:25,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:55:25,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:25,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:55:25,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:25,349 INFO L87 Difference]: Start difference. First operand 145 states and 207 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:25,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:25,574 INFO L93 Difference]: Finished difference Result 313 states and 445 transitions. [2023-12-19 15:55:25,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:55:25,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2023-12-19 15:55:25,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:25,576 INFO L225 Difference]: With dead ends: 313 [2023-12-19 15:55:25,576 INFO L226 Difference]: Without dead ends: 169 [2023-12-19 15:55:25,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:55:25,577 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 177 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:25,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 457 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-19 15:55:25,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 152. [2023-12-19 15:55:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 129 states have (on average 1.3410852713178294) internal successors, (173), 129 states have internal predecessors, (173), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:55:25,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 213 transitions. [2023-12-19 15:55:25,584 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 213 transitions. Word has length 151 [2023-12-19 15:55:25,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:25,584 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 213 transitions. [2023-12-19 15:55:25,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 213 transitions. [2023-12-19 15:55:25,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 15:55:25,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:25,585 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:25,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 15:55:25,587 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:25,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:25,587 INFO L85 PathProgramCache]: Analyzing trace with hash 372292528, now seen corresponding path program 1 times [2023-12-19 15:55:25,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:25,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859993601] [2023-12-19 15:55:25,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:25,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:27,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:27,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859993601] [2023-12-19 15:55:27,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859993601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:27,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:27,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:55:27,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884428000] [2023-12-19 15:55:27,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:27,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:55:27,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:27,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:55:27,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:55:27,085 INFO L87 Difference]: Start difference. First operand 152 states and 213 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:28,170 INFO L93 Difference]: Finished difference Result 464 states and 651 transitions. [2023-12-19 15:55:28,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 15:55:28,173 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-19 15:55:28,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:28,174 INFO L225 Difference]: With dead ends: 464 [2023-12-19 15:55:28,174 INFO L226 Difference]: Without dead ends: 313 [2023-12-19 15:55:28,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2023-12-19 15:55:28,175 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 275 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:28,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 1283 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:55:28,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-12-19 15:55:28,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 213. [2023-12-19 15:55:28,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 187 states have (on average 1.3475935828877006) internal successors, (252), 188 states have internal predecessors, (252), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-19 15:55:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 296 transitions. [2023-12-19 15:55:28,185 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 296 transitions. Word has length 152 [2023-12-19 15:55:28,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:28,186 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 296 transitions. [2023-12-19 15:55:28,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:28,186 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 296 transitions. [2023-12-19 15:55:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 15:55:28,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:28,187 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:28,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 15:55:28,188 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:28,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:28,188 INFO L85 PathProgramCache]: Analyzing trace with hash -214513486, now seen corresponding path program 1 times [2023-12-19 15:55:28,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:28,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435374745] [2023-12-19 15:55:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:28,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:29,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:29,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435374745] [2023-12-19 15:55:29,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435374745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:29,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:29,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:55:29,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339214018] [2023-12-19 15:55:29,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:29,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:55:29,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:29,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:55:29,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:29,076 INFO L87 Difference]: Start difference. First operand 213 states and 296 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:29,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:29,382 INFO L93 Difference]: Finished difference Result 502 states and 696 transitions. [2023-12-19 15:55:29,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:55:29,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2023-12-19 15:55:29,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:29,384 INFO L225 Difference]: With dead ends: 502 [2023-12-19 15:55:29,384 INFO L226 Difference]: Without dead ends: 290 [2023-12-19 15:55:29,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:55:29,385 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 118 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:29,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 817 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:29,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-12-19 15:55:29,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 207. [2023-12-19 15:55:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 181 states have (on average 1.3370165745856353) internal successors, (242), 182 states have internal predecessors, (242), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-19 15:55:29,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 286 transitions. [2023-12-19 15:55:29,395 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 286 transitions. Word has length 152 [2023-12-19 15:55:29,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:29,396 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 286 transitions. [2023-12-19 15:55:29,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:29,396 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 286 transitions. [2023-12-19 15:55:29,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 15:55:29,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:29,397 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:29,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 15:55:29,397 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:29,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:29,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1216055374, now seen corresponding path program 1 times [2023-12-19 15:55:29,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:29,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381817869] [2023-12-19 15:55:29,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:29,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:30,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:30,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381817869] [2023-12-19 15:55:30,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381817869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:30,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:30,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:55:30,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403773038] [2023-12-19 15:55:30,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:30,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:55:30,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:30,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:55:30,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:30,233 INFO L87 Difference]: Start difference. First operand 207 states and 286 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:30,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:30,534 INFO L93 Difference]: Finished difference Result 492 states and 679 transitions. [2023-12-19 15:55:30,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:55:30,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2023-12-19 15:55:30,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:30,536 INFO L225 Difference]: With dead ends: 492 [2023-12-19 15:55:30,536 INFO L226 Difference]: Without dead ends: 286 [2023-12-19 15:55:30,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:55:30,537 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 133 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:30,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 689 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:30,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-19 15:55:30,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 207. [2023-12-19 15:55:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 181 states have (on average 1.3259668508287292) internal successors, (240), 182 states have internal predecessors, (240), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-19 15:55:30,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 284 transitions. [2023-12-19 15:55:30,545 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 284 transitions. Word has length 152 [2023-12-19 15:55:30,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:30,546 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 284 transitions. [2023-12-19 15:55:30,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:30,546 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 284 transitions. [2023-12-19 15:55:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 15:55:30,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:30,547 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:30,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 15:55:30,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:30,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:30,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1802861388, now seen corresponding path program 1 times [2023-12-19 15:55:30,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:30,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600577012] [2023-12-19 15:55:30,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:30,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 54 proven. 54 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2023-12-19 15:55:31,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:31,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600577012] [2023-12-19 15:55:31,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600577012] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:55:31,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247854485] [2023-12-19 15:55:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:31,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:31,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:31,350 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 15:55:31,376 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 15:55:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:31,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-19 15:55:31,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:31,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2023-12-19 15:55:31,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2023-12-19 15:55:31,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2023-12-19 15:55:31,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:31,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 32 [2023-12-19 15:55:31,771 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-19 15:55:31,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:55:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:31,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247854485] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:55:31,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:55:31,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 10] total 19 [2023-12-19 15:55:31,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781563471] [2023-12-19 15:55:31,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:31,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:55:31,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:31,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:55:31,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2023-12-19 15:55:31,963 INFO L87 Difference]: Start difference. First operand 207 states and 284 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:32,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:32,585 INFO L93 Difference]: Finished difference Result 539 states and 739 transitions. [2023-12-19 15:55:32,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:55:32,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-19 15:55:32,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:32,587 INFO L225 Difference]: With dead ends: 539 [2023-12-19 15:55:32,587 INFO L226 Difference]: Without dead ends: 333 [2023-12-19 15:55:32,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 339 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2023-12-19 15:55:32,588 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 211 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:32,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 1020 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:55:32,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-12-19 15:55:32,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 260. [2023-12-19 15:55:32,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 228 states have internal predecessors, (298), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 15:55:32,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 354 transitions. [2023-12-19 15:55:32,601 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 354 transitions. Word has length 152 [2023-12-19 15:55:32,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:32,601 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 354 transitions. [2023-12-19 15:55:32,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 354 transitions. [2023-12-19 15:55:32,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-19 15:55:32,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:32,603 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:32,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 15:55:32,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 15:55:32,809 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:32,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:32,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1680575609, now seen corresponding path program 1 times [2023-12-19 15:55:32,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:32,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627521042] [2023-12-19 15:55:32,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:32,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,304 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:33,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:33,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627521042] [2023-12-19 15:55:33,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627521042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:33,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:33,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:55:33,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132754425] [2023-12-19 15:55:33,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:33,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:55:33,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:33,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:55:33,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:55:33,305 INFO L87 Difference]: Start difference. First operand 260 states and 354 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:33,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:33,504 INFO L93 Difference]: Finished difference Result 760 states and 1041 transitions. [2023-12-19 15:55:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:55:33,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-19 15:55:33,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:33,507 INFO L225 Difference]: With dead ends: 760 [2023-12-19 15:55:33,507 INFO L226 Difference]: Without dead ends: 501 [2023-12-19 15:55:33,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:33,508 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 142 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:33,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 378 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:33,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-19 15:55:33,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 256. [2023-12-19 15:55:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 222 states have (on average 1.3198198198198199) internal successors, (293), 224 states have internal predecessors, (293), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 15:55:33,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 349 transitions. [2023-12-19 15:55:33,543 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 349 transitions. Word has length 153 [2023-12-19 15:55:33,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:33,543 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 349 transitions. [2023-12-19 15:55:33,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:33,544 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 349 transitions. [2023-12-19 15:55:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-19 15:55:33,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:33,545 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:33,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 15:55:33,545 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:33,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:33,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1603274437, now seen corresponding path program 1 times [2023-12-19 15:55:33,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:33,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342741533] [2023-12-19 15:55:33,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:33,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:33,794 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:33,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:33,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342741533] [2023-12-19 15:55:33,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342741533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:33,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:33,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:33,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638129618] [2023-12-19 15:55:33,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:33,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:33,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:33,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:33,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:33,796 INFO L87 Difference]: Start difference. First operand 256 states and 349 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:34,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:34,021 INFO L93 Difference]: Finished difference Result 649 states and 889 transitions. [2023-12-19 15:55:34,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:55:34,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-19 15:55:34,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:34,023 INFO L225 Difference]: With dead ends: 649 [2023-12-19 15:55:34,023 INFO L226 Difference]: Without dead ends: 394 [2023-12-19 15:55:34,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:55:34,024 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 141 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:34,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 504 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:34,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-19 15:55:34,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 295. [2023-12-19 15:55:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 261 states have (on average 1.314176245210728) internal successors, (343), 263 states have internal predecessors, (343), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 15:55:34,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 399 transitions. [2023-12-19 15:55:34,042 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 399 transitions. Word has length 153 [2023-12-19 15:55:34,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:34,044 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 399 transitions. [2023-12-19 15:55:34,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:34,044 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 399 transitions. [2023-12-19 15:55:34,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-19 15:55:34,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:34,046 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:34,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 15:55:34,046 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:34,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:34,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1912791813, now seen corresponding path program 1 times [2023-12-19 15:55:34,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:34,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266503846] [2023-12-19 15:55:34,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:34,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:34,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:34,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266503846] [2023-12-19 15:55:34,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266503846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:34,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:34,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:34,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270403431] [2023-12-19 15:55:34,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:34,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:34,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:34,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:34,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:34,249 INFO L87 Difference]: Start difference. First operand 295 states and 399 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:34,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:34,548 INFO L93 Difference]: Finished difference Result 829 states and 1140 transitions. [2023-12-19 15:55:34,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:55:34,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-19 15:55:34,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:34,551 INFO L225 Difference]: With dead ends: 829 [2023-12-19 15:55:34,551 INFO L226 Difference]: Without dead ends: 535 [2023-12-19 15:55:34,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:55:34,552 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 135 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:34,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 612 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:34,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-12-19 15:55:34,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 336. [2023-12-19 15:55:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 302 states have (on average 1.3178807947019868) internal successors, (398), 304 states have internal predecessors, (398), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 15:55:34,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 454 transitions. [2023-12-19 15:55:34,565 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 454 transitions. Word has length 153 [2023-12-19 15:55:34,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:34,566 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 454 transitions. [2023-12-19 15:55:34,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 454 transitions. [2023-12-19 15:55:34,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-19 15:55:34,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:34,567 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:34,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 15:55:34,567 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:34,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:34,568 INFO L85 PathProgramCache]: Analyzing trace with hash -901674563, now seen corresponding path program 1 times [2023-12-19 15:55:34,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:34,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521090538] [2023-12-19 15:55:34,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:34,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,060 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:35,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:35,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521090538] [2023-12-19 15:55:35,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521090538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:35,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:35,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:55:35,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453499368] [2023-12-19 15:55:35,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:35,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:55:35,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:35,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:55:35,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:55:35,061 INFO L87 Difference]: Start difference. First operand 336 states and 454 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:35,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:35,281 INFO L93 Difference]: Finished difference Result 757 states and 1019 transitions. [2023-12-19 15:55:35,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:55:35,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-19 15:55:35,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:35,283 INFO L225 Difference]: With dead ends: 757 [2023-12-19 15:55:35,283 INFO L226 Difference]: Without dead ends: 422 [2023-12-19 15:55:35,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:35,284 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 106 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:35,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 535 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:35,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-12-19 15:55:35,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 295. [2023-12-19 15:55:35,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 263 states have (on average 1.2927756653992395) internal successors, (340), 264 states have internal predecessors, (340), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 15:55:35,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 392 transitions. [2023-12-19 15:55:35,297 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 392 transitions. Word has length 153 [2023-12-19 15:55:35,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:35,297 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 392 transitions. [2023-12-19 15:55:35,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:35,297 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 392 transitions. [2023-12-19 15:55:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-19 15:55:35,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:35,298 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:35,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 15:55:35,298 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:35,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:35,299 INFO L85 PathProgramCache]: Analyzing trace with hash 880059055, now seen corresponding path program 1 times [2023-12-19 15:55:35,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:35,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676506881] [2023-12-19 15:55:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:35,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:35,850 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:35,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:35,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676506881] [2023-12-19 15:55:35,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676506881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:35,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:35,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:55:35,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53929480] [2023-12-19 15:55:35,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:35,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:55:35,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:35,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:55:35,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:55:35,854 INFO L87 Difference]: Start difference. First operand 295 states and 392 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:36,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:36,221 INFO L93 Difference]: Finished difference Result 665 states and 893 transitions. [2023-12-19 15:55:36,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:55:36,222 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2023-12-19 15:55:36,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:36,224 INFO L225 Difference]: With dead ends: 665 [2023-12-19 15:55:36,224 INFO L226 Difference]: Without dead ends: 371 [2023-12-19 15:55:36,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:55:36,226 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 268 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:36,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 614 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:36,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-19 15:55:36,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 297. [2023-12-19 15:55:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 265 states have (on average 1.290566037735849) internal successors, (342), 266 states have internal predecessors, (342), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 15:55:36,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 394 transitions. [2023-12-19 15:55:36,249 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 394 transitions. Word has length 154 [2023-12-19 15:55:36,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:36,250 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 394 transitions. [2023-12-19 15:55:36,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 394 transitions. [2023-12-19 15:55:36,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-19 15:55:36,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:36,252 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:36,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 15:55:36,252 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:36,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:36,252 INFO L85 PathProgramCache]: Analyzing trace with hash -533290926, now seen corresponding path program 1 times [2023-12-19 15:55:36,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:36,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122008826] [2023-12-19 15:55:36,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:36,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:36,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:36,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122008826] [2023-12-19 15:55:36,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122008826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:36,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:36,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:36,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866919658] [2023-12-19 15:55:36,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:36,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:36,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:36,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:36,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:36,728 INFO L87 Difference]: Start difference. First operand 297 states and 394 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:36,990 INFO L93 Difference]: Finished difference Result 808 states and 1060 transitions. [2023-12-19 15:55:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:55:36,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-19 15:55:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:36,993 INFO L225 Difference]: With dead ends: 808 [2023-12-19 15:55:36,994 INFO L226 Difference]: Without dead ends: 512 [2023-12-19 15:55:36,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:36,995 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 79 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:36,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 523 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:36,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-12-19 15:55:37,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 509. [2023-12-19 15:55:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 454 states have (on average 1.2665198237885462) internal successors, (575), 457 states have internal predecessors, (575), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-19 15:55:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 663 transitions. [2023-12-19 15:55:37,021 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 663 transitions. Word has length 155 [2023-12-19 15:55:37,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:37,022 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 663 transitions. [2023-12-19 15:55:37,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 663 transitions. [2023-12-19 15:55:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-19 15:55:37,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:37,024 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:37,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 15:55:37,024 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:37,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:37,024 INFO L85 PathProgramCache]: Analyzing trace with hash -926317936, now seen corresponding path program 1 times [2023-12-19 15:55:37,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:37,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247700939] [2023-12-19 15:55:37,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:37,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:37,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:37,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247700939] [2023-12-19 15:55:37,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247700939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:37,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:37,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 15:55:37,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663689717] [2023-12-19 15:55:37,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:37,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:55:37,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:37,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:55:37,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:55:37,717 INFO L87 Difference]: Start difference. First operand 509 states and 663 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:38,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:38,442 INFO L93 Difference]: Finished difference Result 1315 states and 1701 transitions. [2023-12-19 15:55:38,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:55:38,442 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-19 15:55:38,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:38,445 INFO L225 Difference]: With dead ends: 1315 [2023-12-19 15:55:38,445 INFO L226 Difference]: Without dead ends: 807 [2023-12-19 15:55:38,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-12-19 15:55:38,446 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 355 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:38,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1119 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:55:38,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2023-12-19 15:55:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 792. [2023-12-19 15:55:38,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 694 states have (on average 1.2463976945244957) internal successors, (865), 700 states have internal predecessors, (865), 78 states have call successors, (78), 19 states have call predecessors, (78), 19 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-19 15:55:38,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1021 transitions. [2023-12-19 15:55:38,484 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1021 transitions. Word has length 155 [2023-12-19 15:55:38,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:38,485 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 1021 transitions. [2023-12-19 15:55:38,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:38,485 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1021 transitions. [2023-12-19 15:55:38,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-19 15:55:38,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:38,486 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:38,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 15:55:38,486 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:38,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:38,487 INFO L85 PathProgramCache]: Analyzing trace with hash -381826501, now seen corresponding path program 1 times [2023-12-19 15:55:38,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:38,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569760965] [2023-12-19 15:55:38,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:38,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:39,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:39,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569760965] [2023-12-19 15:55:39,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569760965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:39,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:39,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:39,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604528296] [2023-12-19 15:55:39,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:39,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:39,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:39,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:39,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:39,039 INFO L87 Difference]: Start difference. First operand 792 states and 1021 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:39,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:39,252 INFO L93 Difference]: Finished difference Result 1652 states and 2138 transitions. [2023-12-19 15:55:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:55:39,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-19 15:55:39,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:39,255 INFO L225 Difference]: With dead ends: 1652 [2023-12-19 15:55:39,255 INFO L226 Difference]: Without dead ends: 861 [2023-12-19 15:55:39,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:39,256 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 77 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:39,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 523 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-12-19 15:55:39,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 781. [2023-12-19 15:55:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 683 states have (on average 1.2357247437774523) internal successors, (844), 689 states have internal predecessors, (844), 78 states have call successors, (78), 19 states have call predecessors, (78), 19 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-19 15:55:39,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1000 transitions. [2023-12-19 15:55:39,295 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1000 transitions. Word has length 155 [2023-12-19 15:55:39,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:39,295 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1000 transitions. [2023-12-19 15:55:39,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:39,296 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1000 transitions. [2023-12-19 15:55:39,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-19 15:55:39,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:39,297 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:39,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 15:55:39,297 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:39,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:39,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1704536005, now seen corresponding path program 1 times [2023-12-19 15:55:39,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:39,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291725519] [2023-12-19 15:55:39,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:39,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:39,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:39,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291725519] [2023-12-19 15:55:39,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291725519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:39,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:39,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:39,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569408135] [2023-12-19 15:55:39,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:39,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:39,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:39,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:39,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:39,891 INFO L87 Difference]: Start difference. First operand 781 states and 1000 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:40,096 INFO L93 Difference]: Finished difference Result 1582 states and 2027 transitions. [2023-12-19 15:55:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:55:40,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-19 15:55:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:40,099 INFO L225 Difference]: With dead ends: 1582 [2023-12-19 15:55:40,099 INFO L226 Difference]: Without dead ends: 802 [2023-12-19 15:55:40,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:40,101 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 140 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:40,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 460 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:55:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-12-19 15:55:40,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 777. [2023-12-19 15:55:40,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 679 states have (on average 1.2312223858615612) internal successors, (836), 685 states have internal predecessors, (836), 78 states have call successors, (78), 19 states have call predecessors, (78), 19 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-19 15:55:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 992 transitions. [2023-12-19 15:55:40,145 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 992 transitions. Word has length 155 [2023-12-19 15:55:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:40,146 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 992 transitions. [2023-12-19 15:55:40,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 992 transitions. [2023-12-19 15:55:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-19 15:55:40,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:40,147 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:40,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 15:55:40,147 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:40,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:40,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1553071580, now seen corresponding path program 1 times [2023-12-19 15:55:40,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:40,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856537248] [2023-12-19 15:55:40,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:40,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:40,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:40,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856537248] [2023-12-19 15:55:40,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856537248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:40,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:40,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:40,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227350632] [2023-12-19 15:55:40,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:40,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:40,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:40,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:40,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:40,447 INFO L87 Difference]: Start difference. First operand 777 states and 992 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:40,732 INFO L93 Difference]: Finished difference Result 1776 states and 2264 transitions. [2023-12-19 15:55:40,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:55:40,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-19 15:55:40,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:40,735 INFO L225 Difference]: With dead ends: 1776 [2023-12-19 15:55:40,735 INFO L226 Difference]: Without dead ends: 1000 [2023-12-19 15:55:40,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:40,737 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 85 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:40,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 467 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2023-12-19 15:55:40,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 997. [2023-12-19 15:55:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 872 states have (on average 1.2259174311926606) internal successors, (1069), 880 states have internal predecessors, (1069), 100 states have call successors, (100), 24 states have call predecessors, (100), 24 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 15:55:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1269 transitions. [2023-12-19 15:55:40,783 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1269 transitions. Word has length 155 [2023-12-19 15:55:40,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:40,783 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1269 transitions. [2023-12-19 15:55:40,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:40,783 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1269 transitions. [2023-12-19 15:55:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-19 15:55:40,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:40,785 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:40,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 15:55:40,785 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:40,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:40,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1946098590, now seen corresponding path program 1 times [2023-12-19 15:55:40,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:40,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970353603] [2023-12-19 15:55:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:40,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:41,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:41,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970353603] [2023-12-19 15:55:41,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970353603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:41,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:41,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 15:55:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235497435] [2023-12-19 15:55:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:41,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:55:41,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:41,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:55:41,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:55:41,446 INFO L87 Difference]: Start difference. First operand 997 states and 1269 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:42,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:42,308 INFO L93 Difference]: Finished difference Result 2207 states and 2805 transitions. [2023-12-19 15:55:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 15:55:42,308 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-19 15:55:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:42,312 INFO L225 Difference]: With dead ends: 2207 [2023-12-19 15:55:42,312 INFO L226 Difference]: Without dead ends: 1211 [2023-12-19 15:55:42,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2023-12-19 15:55:42,314 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 270 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:42,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1076 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:55:42,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2023-12-19 15:55:42,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 979. [2023-12-19 15:55:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 877 states have (on average 1.2212086659064993) internal successors, (1071), 883 states have internal predecessors, (1071), 80 states have call successors, (80), 21 states have call predecessors, (80), 21 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-19 15:55:42,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1231 transitions. [2023-12-19 15:55:42,363 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1231 transitions. Word has length 155 [2023-12-19 15:55:42,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:42,363 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1231 transitions. [2023-12-19 15:55:42,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:42,364 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1231 transitions. [2023-12-19 15:55:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-19 15:55:42,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:42,365 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:42,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 15:55:42,365 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:42,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:42,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1615111194, now seen corresponding path program 1 times [2023-12-19 15:55:42,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:42,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722997898] [2023-12-19 15:55:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:42,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,511 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:42,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:42,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722997898] [2023-12-19 15:55:42,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722997898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:42,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:42,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:55:42,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811460250] [2023-12-19 15:55:42,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:42,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:55:42,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:42,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:55:42,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:55:42,513 INFO L87 Difference]: Start difference. First operand 979 states and 1231 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:42,776 INFO L93 Difference]: Finished difference Result 2078 states and 2635 transitions. [2023-12-19 15:55:42,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:55:42,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-19 15:55:42,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:42,779 INFO L225 Difference]: With dead ends: 2078 [2023-12-19 15:55:42,779 INFO L226 Difference]: Without dead ends: 1100 [2023-12-19 15:55:42,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:42,782 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 121 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:42,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 721 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:42,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2023-12-19 15:55:42,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 940. [2023-12-19 15:55:42,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 838 states have (on average 1.220763723150358) internal successors, (1023), 844 states have internal predecessors, (1023), 80 states have call successors, (80), 21 states have call predecessors, (80), 21 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-19 15:55:42,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1183 transitions. [2023-12-19 15:55:42,826 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1183 transitions. Word has length 155 [2023-12-19 15:55:42,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:42,826 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1183 transitions. [2023-12-19 15:55:42,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1183 transitions. [2023-12-19 15:55:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-19 15:55:42,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:42,828 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:42,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 15:55:42,828 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:42,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:42,828 INFO L85 PathProgramCache]: Analyzing trace with hash 208953684, now seen corresponding path program 1 times [2023-12-19 15:55:42,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:42,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241716179] [2023-12-19 15:55:42,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:42,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:42,933 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:42,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:42,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241716179] [2023-12-19 15:55:42,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241716179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:42,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:42,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:55:42,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799087997] [2023-12-19 15:55:42,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:42,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:55:42,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:42,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:55:42,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:55:42,935 INFO L87 Difference]: Start difference. First operand 940 states and 1183 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:43,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:43,153 INFO L93 Difference]: Finished difference Result 2641 states and 3326 transitions. [2023-12-19 15:55:43,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 15:55:43,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-19 15:55:43,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:43,158 INFO L225 Difference]: With dead ends: 2641 [2023-12-19 15:55:43,158 INFO L226 Difference]: Without dead ends: 1702 [2023-12-19 15:55:43,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:55:43,160 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 93 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:43,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 327 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:43,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2023-12-19 15:55:43,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1250. [2023-12-19 15:55:43,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1123 states have (on average 1.2279608192341942) internal successors, (1379), 1129 states have internal predecessors, (1379), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 15:55:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1579 transitions. [2023-12-19 15:55:43,218 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1579 transitions. Word has length 156 [2023-12-19 15:55:43,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:43,218 INFO L495 AbstractCegarLoop]: Abstraction has 1250 states and 1579 transitions. [2023-12-19 15:55:43,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1579 transitions. [2023-12-19 15:55:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-19 15:55:43,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:43,220 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:43,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-19 15:55:43,220 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:43,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:43,220 INFO L85 PathProgramCache]: Analyzing trace with hash -377852330, now seen corresponding path program 1 times [2023-12-19 15:55:43,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:43,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406973588] [2023-12-19 15:55:43,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:43,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:43,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:43,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406973588] [2023-12-19 15:55:43,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406973588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:43,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:43,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:55:43,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088596900] [2023-12-19 15:55:43,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:43,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:55:43,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:43,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:55:43,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:43,777 INFO L87 Difference]: Start difference. First operand 1250 states and 1579 transitions. Second operand has 7 states, 5 states have (on average 11.8) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-19 15:55:44,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:44,181 INFO L93 Difference]: Finished difference Result 3133 states and 3957 transitions. [2023-12-19 15:55:44,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:55:44,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 156 [2023-12-19 15:55:44,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:44,187 INFO L225 Difference]: With dead ends: 3133 [2023-12-19 15:55:44,187 INFO L226 Difference]: Without dead ends: 2184 [2023-12-19 15:55:44,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:55:44,190 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 128 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:44,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 726 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:44,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2023-12-19 15:55:44,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 1480. [2023-12-19 15:55:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1353 states have (on average 1.23059866962306) internal successors, (1665), 1359 states have internal predecessors, (1665), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 15:55:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1865 transitions. [2023-12-19 15:55:44,264 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1865 transitions. Word has length 156 [2023-12-19 15:55:44,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:44,264 INFO L495 AbstractCegarLoop]: Abstraction has 1480 states and 1865 transitions. [2023-12-19 15:55:44,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-19 15:55:44,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1865 transitions. [2023-12-19 15:55:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:44,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:44,266 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:44,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 15:55:44,266 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:44,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:44,266 INFO L85 PathProgramCache]: Analyzing trace with hash 899515343, now seen corresponding path program 1 times [2023-12-19 15:55:44,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:44,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436227757] [2023-12-19 15:55:44,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:44,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:44,439 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:44,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:44,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436227757] [2023-12-19 15:55:44,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436227757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:44,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:44,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:55:44,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574320069] [2023-12-19 15:55:44,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:44,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:55:44,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:44,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:55:44,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:55:44,440 INFO L87 Difference]: Start difference. First operand 1480 states and 1865 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:44,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:44,651 INFO L93 Difference]: Finished difference Result 2849 states and 3605 transitions. [2023-12-19 15:55:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:55:44,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-19 15:55:44,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:44,655 INFO L225 Difference]: With dead ends: 2849 [2023-12-19 15:55:44,656 INFO L226 Difference]: Without dead ends: 1662 [2023-12-19 15:55:44,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:44,661 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 158 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:44,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 665 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:55:44,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2023-12-19 15:55:44,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1480. [2023-12-19 15:55:44,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1353 states have (on average 1.2187730968218773) internal successors, (1649), 1359 states have internal predecessors, (1649), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 15:55:44,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1849 transitions. [2023-12-19 15:55:44,721 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1849 transitions. Word has length 157 [2023-12-19 15:55:44,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:44,721 INFO L495 AbstractCegarLoop]: Abstraction has 1480 states and 1849 transitions. [2023-12-19 15:55:44,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:44,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1849 transitions. [2023-12-19 15:55:44,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:44,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:44,723 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:44,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-19 15:55:44,723 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:44,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:44,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1109446901, now seen corresponding path program 1 times [2023-12-19 15:55:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:44,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363686471] [2023-12-19 15:55:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:44,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-19 15:55:45,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:45,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363686471] [2023-12-19 15:55:45,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363686471] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:55:45,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031517267] [2023-12-19 15:55:45,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:45,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:45,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:45,154 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 15:55:45,178 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 15:55:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:45,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-19 15:55:45,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:45,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-19 15:55:45,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 47 [2023-12-19 15:55:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:45,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:45,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031517267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:45,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:55:45,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 19 [2023-12-19 15:55:45,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757368721] [2023-12-19 15:55:45,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:45,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:55:45,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:45,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:55:45,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2023-12-19 15:55:45,711 INFO L87 Difference]: Start difference. First operand 1480 states and 1849 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:46,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:46,574 INFO L93 Difference]: Finished difference Result 5395 states and 6741 transitions. [2023-12-19 15:55:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-19 15:55:46,574 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-19 15:55:46,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:46,584 INFO L225 Difference]: With dead ends: 5395 [2023-12-19 15:55:46,585 INFO L226 Difference]: Without dead ends: 4226 [2023-12-19 15:55:46,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=205, Invalid=985, Unknown=0, NotChecked=0, Total=1190 [2023-12-19 15:55:46,587 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 516 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:46,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 715 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:55:46,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2023-12-19 15:55:46,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 2353. [2023-12-19 15:55:46,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2353 states, 2125 states have (on average 1.2117647058823529) internal successors, (2575), 2137 states have internal predecessors, (2575), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-19 15:55:46,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 2935 transitions. [2023-12-19 15:55:46,744 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 2935 transitions. Word has length 157 [2023-12-19 15:55:46,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:46,744 INFO L495 AbstractCegarLoop]: Abstraction has 2353 states and 2935 transitions. [2023-12-19 15:55:46,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:46,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 2935 transitions. [2023-12-19 15:55:46,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:46,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:46,747 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:46,771 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 15:55:46,953 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,SelfDestructingSolverStorable25 [2023-12-19 15:55:46,953 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:46,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1410513033, now seen corresponding path program 1 times [2023-12-19 15:55:46,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:46,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563834342] [2023-12-19 15:55:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:46,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:47,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:47,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563834342] [2023-12-19 15:55:47,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563834342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:47,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:47,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 15:55:47,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918741906] [2023-12-19 15:55:47,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:47,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:55:47,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:47,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:55:47,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:55:47,405 INFO L87 Difference]: Start difference. First operand 2353 states and 2935 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:48,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:48,132 INFO L93 Difference]: Finished difference Result 5256 states and 6560 transitions. [2023-12-19 15:55:48,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 15:55:48,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2023-12-19 15:55:48,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:48,141 INFO L225 Difference]: With dead ends: 5256 [2023-12-19 15:55:48,141 INFO L226 Difference]: Without dead ends: 3310 [2023-12-19 15:55:48,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2023-12-19 15:55:48,145 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 316 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:48,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 789 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:55:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2023-12-19 15:55:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 2631. [2023-12-19 15:55:48,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2403 states have (on average 1.200582605076987) internal successors, (2885), 2415 states have internal predecessors, (2885), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-19 15:55:48,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3245 transitions. [2023-12-19 15:55:48,260 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3245 transitions. Word has length 157 [2023-12-19 15:55:48,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:48,260 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 3245 transitions. [2023-12-19 15:55:48,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:48,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3245 transitions. [2023-12-19 15:55:48,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:48,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:48,264 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:48,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-19 15:55:48,265 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:48,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash -2984757, now seen corresponding path program 1 times [2023-12-19 15:55:48,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:48,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763053177] [2023-12-19 15:55:48,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:48,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:48,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:48,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763053177] [2023-12-19 15:55:48,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763053177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:48,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:48,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:55:48,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240634729] [2023-12-19 15:55:48,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:48,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:55:48,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:48,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:55:48,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:55:48,515 INFO L87 Difference]: Start difference. First operand 2631 states and 3245 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:48,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:48,904 INFO L93 Difference]: Finished difference Result 5207 states and 6449 transitions. [2023-12-19 15:55:48,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:55:48,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-19 15:55:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:48,924 INFO L225 Difference]: With dead ends: 5207 [2023-12-19 15:55:48,925 INFO L226 Difference]: Without dead ends: 2905 [2023-12-19 15:55:48,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:55:48,928 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 282 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:48,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 345 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:48,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2023-12-19 15:55:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 2631. [2023-12-19 15:55:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2403 states have (on average 1.1681231793591345) internal successors, (2807), 2415 states have internal predecessors, (2807), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-19 15:55:49,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3167 transitions. [2023-12-19 15:55:49,039 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3167 transitions. Word has length 157 [2023-12-19 15:55:49,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:49,039 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 3167 transitions. [2023-12-19 15:55:49,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:49,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3167 transitions. [2023-12-19 15:55:49,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:49,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:49,042 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:49,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-19 15:55:49,042 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:49,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:49,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1249995511, now seen corresponding path program 1 times [2023-12-19 15:55:49,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:49,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52350813] [2023-12-19 15:55:49,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:49,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:49,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:49,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52350813] [2023-12-19 15:55:49,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52350813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:49,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:49,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 15:55:49,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040752095] [2023-12-19 15:55:49,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:49,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 15:55:49,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:49,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 15:55:49,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:55:49,391 INFO L87 Difference]: Start difference. First operand 2631 states and 3167 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:50,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:50,008 INFO L93 Difference]: Finished difference Result 4536 states and 5503 transitions. [2023-12-19 15:55:50,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:55:50,008 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-19 15:55:50,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:50,016 INFO L225 Difference]: With dead ends: 4536 [2023-12-19 15:55:50,016 INFO L226 Difference]: Without dead ends: 3180 [2023-12-19 15:55:50,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2023-12-19 15:55:50,020 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 250 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:50,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 934 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:55:50,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2023-12-19 15:55:50,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 2732. [2023-12-19 15:55:50,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 2504 states have (on average 1.165335463258786) internal successors, (2918), 2516 states have internal predecessors, (2918), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-19 15:55:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3278 transitions. [2023-12-19 15:55:50,147 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 3278 transitions. Word has length 157 [2023-12-19 15:55:50,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:50,147 INFO L495 AbstractCegarLoop]: Abstraction has 2732 states and 3278 transitions. [2023-12-19 15:55:50,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:50,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 3278 transitions. [2023-12-19 15:55:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:50,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:50,150 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:50,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-19 15:55:50,150 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:50,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:50,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1269964423, now seen corresponding path program 1 times [2023-12-19 15:55:50,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:50,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867998561] [2023-12-19 15:55:50,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:50,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,537 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-19 15:55:50,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:50,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867998561] [2023-12-19 15:55:50,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867998561] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:55:50,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208475769] [2023-12-19 15:55:50,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:50,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:50,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:50,538 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 15:55:50,583 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 15:55:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:50,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-19 15:55:50,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:50,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-19 15:55:50,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 55 [2023-12-19 15:55:51,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:51,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 47 [2023-12-19 15:55:51,242 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:51,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:51,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208475769] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:51,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:55:51,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 19 [2023-12-19 15:55:51,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010580703] [2023-12-19 15:55:51,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:51,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:55:51,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:51,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:55:51,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2023-12-19 15:55:51,243 INFO L87 Difference]: Start difference. First operand 2732 states and 3278 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:52,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:52,332 INFO L93 Difference]: Finished difference Result 6577 states and 7884 transitions. [2023-12-19 15:55:52,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-19 15:55:52,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-19 15:55:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:52,340 INFO L225 Difference]: With dead ends: 6577 [2023-12-19 15:55:52,340 INFO L226 Difference]: Without dead ends: 5120 [2023-12-19 15:55:52,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=1003, Unknown=0, NotChecked=0, Total=1190 [2023-12-19 15:55:52,343 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 338 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:52,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 1093 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:55:52,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2023-12-19 15:55:52,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 3175. [2023-12-19 15:55:52,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 2947 states have (on average 1.166610111978283) internal successors, (3438), 2959 states have internal predecessors, (3438), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-19 15:55:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 3798 transitions. [2023-12-19 15:55:52,505 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 3798 transitions. Word has length 157 [2023-12-19 15:55:52,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:52,506 INFO L495 AbstractCegarLoop]: Abstraction has 3175 states and 3798 transitions. [2023-12-19 15:55:52,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 3798 transitions. [2023-12-19 15:55:52,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:52,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:52,509 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:52,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 15:55:52,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:52,716 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:52,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash -429586727, now seen corresponding path program 1 times [2023-12-19 15:55:52,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:52,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735469448] [2023-12-19 15:55:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:52,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:53,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:53,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735469448] [2023-12-19 15:55:53,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735469448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:53,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:53,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:55:53,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786675541] [2023-12-19 15:55:53,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:53,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:55:53,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:53,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:55:53,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:55:53,228 INFO L87 Difference]: Start difference. First operand 3175 states and 3798 transitions. Second operand has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:53,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:53,710 INFO L93 Difference]: Finished difference Result 4894 states and 5869 transitions. [2023-12-19 15:55:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 15:55:53,711 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2023-12-19 15:55:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:53,716 INFO L225 Difference]: With dead ends: 4894 [2023-12-19 15:55:53,716 INFO L226 Difference]: Without dead ends: 3437 [2023-12-19 15:55:53,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2023-12-19 15:55:53,719 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 238 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:53,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 691 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:55:53,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3437 states. [2023-12-19 15:55:53,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3437 to 3133. [2023-12-19 15:55:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 2905 states have (on average 1.1652323580034423) internal successors, (3385), 2917 states have internal predecessors, (3385), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-19 15:55:53,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 3745 transitions. [2023-12-19 15:55:53,857 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 3745 transitions. Word has length 157 [2023-12-19 15:55:53,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:53,857 INFO L495 AbstractCegarLoop]: Abstraction has 3133 states and 3745 transitions. [2023-12-19 15:55:53,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:53,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 3745 transitions. [2023-12-19 15:55:53,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:53,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:53,860 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:53,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-19 15:55:53,861 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:53,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:53,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1728703307, now seen corresponding path program 1 times [2023-12-19 15:55:53,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:53,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779250414] [2023-12-19 15:55:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:53,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,236 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-19 15:55:54,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:54,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779250414] [2023-12-19 15:55:54,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779250414] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:55:54,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296651433] [2023-12-19 15:55:54,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:54,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:54,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:54,237 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 15:55:54,239 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 15:55:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:54,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-19 15:55:54,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:54,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 47 [2023-12-19 15:55:54,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:54,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 32 [2023-12-19 15:55:54,641 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:54,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:54,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296651433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:54,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:55:54,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-19 15:55:54,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389696329] [2023-12-19 15:55:54,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:54,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:55:54,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:54,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:55:54,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:55:54,643 INFO L87 Difference]: Start difference. First operand 3133 states and 3745 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:55,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:55,079 INFO L93 Difference]: Finished difference Result 5575 states and 6671 transitions. [2023-12-19 15:55:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 15:55:55,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-19 15:55:55,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:55,086 INFO L225 Difference]: With dead ends: 5575 [2023-12-19 15:55:55,086 INFO L226 Difference]: Without dead ends: 4160 [2023-12-19 15:55:55,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2023-12-19 15:55:55,090 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 117 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:55,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 675 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4160 states. [2023-12-19 15:55:55,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4160 to 2972. [2023-12-19 15:55:55,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2845 states have (on average 1.161335676625659) internal successors, (3304), 2851 states have internal predecessors, (3304), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 15:55:55,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 3504 transitions. [2023-12-19 15:55:55,175 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 3504 transitions. Word has length 157 [2023-12-19 15:55:55,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:55,175 INFO L495 AbstractCegarLoop]: Abstraction has 2972 states and 3504 transitions. [2023-12-19 15:55:55,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 3504 transitions. [2023-12-19 15:55:55,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:55,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:55,178 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:55,196 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 15:55:55,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:55,385 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:55,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:55,385 INFO L85 PathProgramCache]: Analyzing trace with hash 46304055, now seen corresponding path program 1 times [2023-12-19 15:55:55,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:55,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566478719] [2023-12-19 15:55:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:55,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:55,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:55,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566478719] [2023-12-19 15:55:55,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566478719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:55,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:55,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:55:55,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352710891] [2023-12-19 15:55:55,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:55,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:55:55,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:55,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:55:55,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:55,908 INFO L87 Difference]: Start difference. First operand 2972 states and 3504 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:56,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:56,213 INFO L93 Difference]: Finished difference Result 5242 states and 6193 transitions. [2023-12-19 15:55:56,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:55:56,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2023-12-19 15:55:56,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:56,217 INFO L225 Difference]: With dead ends: 5242 [2023-12-19 15:55:56,217 INFO L226 Difference]: Without dead ends: 3205 [2023-12-19 15:55:56,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:55:56,219 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 120 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:56,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 483 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:56,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2023-12-19 15:55:56,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 2871. [2023-12-19 15:55:56,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2871 states, 2744 states have (on average 1.1610787172011663) internal successors, (3186), 2750 states have internal predecessors, (3186), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 15:55:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 3386 transitions. [2023-12-19 15:55:56,297 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 3386 transitions. Word has length 157 [2023-12-19 15:55:56,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:56,297 INFO L495 AbstractCegarLoop]: Abstraction has 2871 states and 3386 transitions. [2023-12-19 15:55:56,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:56,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 3386 transitions. [2023-12-19 15:55:56,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:56,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:56,300 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:56,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-19 15:55:56,301 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:56,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:56,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1588154697, now seen corresponding path program 1 times [2023-12-19 15:55:56,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:56,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313875265] [2023-12-19 15:55:56,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:56,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:56,822 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:56,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:56,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313875265] [2023-12-19 15:55:56,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313875265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:56,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:56,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:55:56,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908615597] [2023-12-19 15:55:56,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:56,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:55:56,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:56,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:55:56,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:55:56,824 INFO L87 Difference]: Start difference. First operand 2871 states and 3386 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:57,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:57,076 INFO L93 Difference]: Finished difference Result 4996 states and 5898 transitions. [2023-12-19 15:55:57,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:55:57,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2023-12-19 15:55:57,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:57,081 INFO L225 Difference]: With dead ends: 4996 [2023-12-19 15:55:57,081 INFO L226 Difference]: Without dead ends: 3060 [2023-12-19 15:55:57,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:55:57,084 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 114 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:57,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 617 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:55:57,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2023-12-19 15:55:57,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2679. [2023-12-19 15:55:57,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2679 states, 2552 states have (on average 1.1598746081504703) internal successors, (2960), 2558 states have internal predecessors, (2960), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 15:55:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 3160 transitions. [2023-12-19 15:55:57,161 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 3160 transitions. Word has length 157 [2023-12-19 15:55:57,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:57,161 INFO L495 AbstractCegarLoop]: Abstraction has 2679 states and 3160 transitions. [2023-12-19 15:55:57,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:55:57,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 3160 transitions. [2023-12-19 15:55:57,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 15:55:57,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:57,164 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:57,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-19 15:55:57,164 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:57,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:57,165 INFO L85 PathProgramCache]: Analyzing trace with hash 186852665, now seen corresponding path program 1 times [2023-12-19 15:55:57,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:57,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981865487] [2023-12-19 15:55:57,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:57,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,531 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-19 15:55:57,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:57,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981865487] [2023-12-19 15:55:57,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981865487] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:55:57,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289331990] [2023-12-19 15:55:57,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:57,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:55:57,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:55:57,532 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 15:55:57,542 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 15:55:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:57,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-19 15:55:57,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:55:57,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:55:57,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2023-12-19 15:55:57,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2023-12-19 15:55:57,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2023-12-19 15:55:57,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:57,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 71 [2023-12-19 15:55:58,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:55:58,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 49 [2023-12-19 15:55:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:58,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:55:58,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289331990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:58,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:55:58,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2023-12-19 15:55:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701930294] [2023-12-19 15:55:58,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:58,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:55:58,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:58,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:55:58,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:55:58,104 INFO L87 Difference]: Start difference. First operand 2679 states and 3160 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:55:58,860 INFO L93 Difference]: Finished difference Result 4881 states and 5782 transitions. [2023-12-19 15:55:58,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:55:58,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-19 15:55:58,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:55:58,878 INFO L225 Difference]: With dead ends: 4881 [2023-12-19 15:55:58,878 INFO L226 Difference]: Without dead ends: 3046 [2023-12-19 15:55:58,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2023-12-19 15:55:58,896 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 251 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:55:58,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 678 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:55:58,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2023-12-19 15:55:59,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 2661. [2023-12-19 15:55:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2435 states have (on average 1.153593429158111) internal successors, (2809), 2448 states have internal predecessors, (2809), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2023-12-19 15:55:59,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3165 transitions. [2023-12-19 15:55:59,045 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3165 transitions. Word has length 157 [2023-12-19 15:55:59,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:55:59,046 INFO L495 AbstractCegarLoop]: Abstraction has 2661 states and 3165 transitions. [2023-12-19 15:55:59,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:55:59,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3165 transitions. [2023-12-19 15:55:59,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-19 15:55:59,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:55:59,048 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:59,056 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 15:55:59,254 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,SelfDestructingSolverStorable34 [2023-12-19 15:55:59,254 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:55:59,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:55:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1458783158, now seen corresponding path program 1 times [2023-12-19 15:55:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:55:59,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141114932] [2023-12-19 15:55:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:55:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:55:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:55:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:55:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:55:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:55:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:55:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:55:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:55:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:55:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:55:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:55:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:55:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:55:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:55:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:55:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:55:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:55:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:55:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:55:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:55:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:55:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:55:59,702 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:55:59,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:55:59,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141114932] [2023-12-19 15:55:59,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141114932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:55:59,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:55:59,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:55:59,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114475478] [2023-12-19 15:55:59,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:55:59,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:55:59,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:55:59,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:55:59,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:55:59,705 INFO L87 Difference]: Start difference. First operand 2661 states and 3165 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:56:00,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:00,277 INFO L93 Difference]: Finished difference Result 5151 states and 6163 transitions. [2023-12-19 15:56:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 15:56:00,277 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-19 15:56:00,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:00,297 INFO L225 Difference]: With dead ends: 5151 [2023-12-19 15:56:00,298 INFO L226 Difference]: Without dead ends: 3003 [2023-12-19 15:56:00,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:56:00,302 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 226 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:00,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1223 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:56:00,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2023-12-19 15:56:00,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 2677. [2023-12-19 15:56:00,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2451 states have (on average 1.1525907792737657) internal successors, (2825), 2464 states have internal predecessors, (2825), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2023-12-19 15:56:00,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3181 transitions. [2023-12-19 15:56:00,432 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3181 transitions. Word has length 159 [2023-12-19 15:56:00,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:00,432 INFO L495 AbstractCegarLoop]: Abstraction has 2677 states and 3181 transitions. [2023-12-19 15:56:00,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:56:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3181 transitions. [2023-12-19 15:56:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-19 15:56:00,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:00,435 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:00,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-19 15:56:00,435 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:00,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:00,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1851810168, now seen corresponding path program 1 times [2023-12-19 15:56:00,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:00,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574593842] [2023-12-19 15:56:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:00,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:56:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:56:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:56:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:56:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:56:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:56:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:56:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:56:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:56:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:56:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:56:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:56:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:56:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:56:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:56:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:56:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:56:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:56:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:56:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:56:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:00,843 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:56:00,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:00,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574593842] [2023-12-19 15:56:00,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574593842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:00,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:00,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:56:00,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561355930] [2023-12-19 15:56:00,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:00,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:56:00,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:00,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:56:00,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:56:00,844 INFO L87 Difference]: Start difference. First operand 2677 states and 3181 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:01,228 INFO L93 Difference]: Finished difference Result 5001 states and 5943 transitions. [2023-12-19 15:56:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:56:01,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2023-12-19 15:56:01,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:01,233 INFO L225 Difference]: With dead ends: 5001 [2023-12-19 15:56:01,233 INFO L226 Difference]: Without dead ends: 2837 [2023-12-19 15:56:01,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:56:01,236 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 82 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:01,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 467 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:56:01,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2023-12-19 15:56:01,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 2677. [2023-12-19 15:56:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2450 states have (on average 1.1510204081632653) internal successors, (2820), 2463 states have internal predecessors, (2820), 178 states have call successors, (178), 48 states have call predecessors, (178), 48 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2023-12-19 15:56:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3176 transitions. [2023-12-19 15:56:01,369 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3176 transitions. Word has length 159 [2023-12-19 15:56:01,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:01,369 INFO L495 AbstractCegarLoop]: Abstraction has 2677 states and 3176 transitions. [2023-12-19 15:56:01,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:01,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3176 transitions. [2023-12-19 15:56:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-19 15:56:01,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:01,372 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:01,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-19 15:56:01,372 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:01,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash 499051555, now seen corresponding path program 1 times [2023-12-19 15:56:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:01,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950480429] [2023-12-19 15:56:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:01,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:56:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:56:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:56:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:56:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:56:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:56:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:56:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:56:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:56:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:56:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:56:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:56:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:56:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:56:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:56:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:56:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:56:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:56:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:56:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:56:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:01,512 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:56:01,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:01,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950480429] [2023-12-19 15:56:01,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950480429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:01,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:01,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:56:01,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727394976] [2023-12-19 15:56:01,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:01,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:56:01,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:01,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:56:01,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:56:01,514 INFO L87 Difference]: Start difference. First operand 2677 states and 3176 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:56:01,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:01,653 INFO L93 Difference]: Finished difference Result 2721 states and 3233 transitions. [2023-12-19 15:56:01,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:56:01,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-19 15:56:01,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:01,657 INFO L225 Difference]: With dead ends: 2721 [2023-12-19 15:56:01,657 INFO L226 Difference]: Without dead ends: 2719 [2023-12-19 15:56:01,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:56:01,659 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 7 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:01,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 550 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:56:01,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2023-12-19 15:56:01,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2719. [2023-12-19 15:56:01,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2492 states have (on average 1.1484751203852328) internal successors, (2862), 2505 states have internal predecessors, (2862), 178 states have call successors, (178), 48 states have call predecessors, (178), 48 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2023-12-19 15:56:01,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3218 transitions. [2023-12-19 15:56:01,826 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3218 transitions. Word has length 159 [2023-12-19 15:56:01,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:01,827 INFO L495 AbstractCegarLoop]: Abstraction has 2719 states and 3218 transitions. [2023-12-19 15:56:01,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:56:01,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3218 transitions. [2023-12-19 15:56:01,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-19 15:56:01,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:01,829 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:01,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-19 15:56:01,830 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:01,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:01,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1829177914, now seen corresponding path program 1 times [2023-12-19 15:56:01,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:01,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005077200] [2023-12-19 15:56:01,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:01,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:56:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:56:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:56:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:56:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:56:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:56:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:56:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:56:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:56:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:56:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:56:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:56:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:56:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:56:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:56:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:56:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:56:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:56:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:56:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:56:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:56:02,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:02,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005077200] [2023-12-19 15:56:02,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005077200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:02,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:02,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-19 15:56:02,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60707969] [2023-12-19 15:56:02,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:02,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 15:56:02,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:02,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 15:56:02,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:56:02,644 INFO L87 Difference]: Start difference. First operand 2719 states and 3218 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:03,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:03,516 INFO L93 Difference]: Finished difference Result 5105 states and 6036 transitions. [2023-12-19 15:56:03,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-19 15:56:03,517 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2023-12-19 15:56:03,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:03,520 INFO L225 Difference]: With dead ends: 5105 [2023-12-19 15:56:03,520 INFO L226 Difference]: Without dead ends: 2903 [2023-12-19 15:56:03,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2023-12-19 15:56:03,523 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 335 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:03,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 945 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:56:03,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2023-12-19 15:56:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2691. [2023-12-19 15:56:03,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 2448 states have (on average 1.1454248366013071) internal successors, (2804), 2463 states have internal predecessors, (2804), 190 states have call successors, (190), 52 states have call predecessors, (190), 52 states have return successors, (190), 175 states have call predecessors, (190), 190 states have call successors, (190) [2023-12-19 15:56:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3184 transitions. [2023-12-19 15:56:03,682 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3184 transitions. Word has length 159 [2023-12-19 15:56:03,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:03,682 INFO L495 AbstractCegarLoop]: Abstraction has 2691 states and 3184 transitions. [2023-12-19 15:56:03,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:03,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3184 transitions. [2023-12-19 15:56:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-19 15:56:03,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:03,685 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:03,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-19 15:56:03,685 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:03,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:03,686 INFO L85 PathProgramCache]: Analyzing trace with hash -770688232, now seen corresponding path program 1 times [2023-12-19 15:56:03,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:03,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334382217] [2023-12-19 15:56:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:03,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:56:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:56:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:56:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:56:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:56:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:56:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:56:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:56:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:56:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:56:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:56:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:56:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:56:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:56:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:56:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:56:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:56:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:56:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:56:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:56:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:56:04,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:04,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334382217] [2023-12-19 15:56:04,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334382217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:04,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:04,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-19 15:56:04,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597424039] [2023-12-19 15:56:04,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:04,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 15:56:04,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:04,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 15:56:04,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:56:04,518 INFO L87 Difference]: Start difference. First operand 2691 states and 3184 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:05,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:05,481 INFO L93 Difference]: Finished difference Result 4989 states and 5900 transitions. [2023-12-19 15:56:05,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:56:05,482 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2023-12-19 15:56:05,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:05,485 INFO L225 Difference]: With dead ends: 4989 [2023-12-19 15:56:05,485 INFO L226 Difference]: Without dead ends: 2797 [2023-12-19 15:56:05,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2023-12-19 15:56:05,488 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 325 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:05,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1283 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:56:05,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2023-12-19 15:56:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2595. [2023-12-19 15:56:05,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2352 states have (on average 1.1428571428571428) internal successors, (2688), 2367 states have internal predecessors, (2688), 190 states have call successors, (190), 52 states have call predecessors, (190), 52 states have return successors, (190), 175 states have call predecessors, (190), 190 states have call successors, (190) [2023-12-19 15:56:05,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 3068 transitions. [2023-12-19 15:56:05,668 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 3068 transitions. Word has length 159 [2023-12-19 15:56:05,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:05,669 INFO L495 AbstractCegarLoop]: Abstraction has 2595 states and 3068 transitions. [2023-12-19 15:56:05,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:05,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 3068 transitions. [2023-12-19 15:56:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-19 15:56:05,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:05,671 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:05,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-19 15:56:05,671 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:05,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:05,672 INFO L85 PathProgramCache]: Analyzing trace with hash -400293476, now seen corresponding path program 1 times [2023-12-19 15:56:05,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:05,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705431417] [2023-12-19 15:56:05,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:05,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:56:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:56:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:56:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:56:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:56:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:56:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:56:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:56:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:56:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:56:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:56:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:56:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:56:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:56:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:56:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:56:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:56:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:56:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:56:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:56:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:56:06,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:06,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705431417] [2023-12-19 15:56:06,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705431417] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:06,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:06,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:56:06,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356279864] [2023-12-19 15:56:06,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:06,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:56:06,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:06,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:56:06,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:56:06,094 INFO L87 Difference]: Start difference. First operand 2595 states and 3068 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:56:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:06,677 INFO L93 Difference]: Finished difference Result 4891 states and 5802 transitions. [2023-12-19 15:56:06,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 15:56:06,700 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-19 15:56:06,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:06,703 INFO L225 Difference]: With dead ends: 4891 [2023-12-19 15:56:06,703 INFO L226 Difference]: Without dead ends: 2777 [2023-12-19 15:56:06,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:56:06,706 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 226 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:06,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1310 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:56:06,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2023-12-19 15:56:06,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2427. [2023-12-19 15:56:06,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2230 states have (on average 1.1452914798206277) internal successors, (2554), 2241 states have internal predecessors, (2554), 154 states have call successors, (154), 42 states have call predecessors, (154), 42 states have return successors, (154), 143 states have call predecessors, (154), 154 states have call successors, (154) [2023-12-19 15:56:06,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 2862 transitions. [2023-12-19 15:56:06,831 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 2862 transitions. Word has length 159 [2023-12-19 15:56:06,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:06,831 INFO L495 AbstractCegarLoop]: Abstraction has 2427 states and 2862 transitions. [2023-12-19 15:56:06,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:56:06,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 2862 transitions. [2023-12-19 15:56:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-19 15:56:06,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:06,833 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:06,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-19 15:56:06,833 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:06,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash -793320486, now seen corresponding path program 1 times [2023-12-19 15:56:06,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:06,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630383943] [2023-12-19 15:56:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:06,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:56:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:56:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:56:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:56:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:56:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:56:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:56:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:56:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:56:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:56:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:56:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:56:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:56:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:56:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:56:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:56:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:56:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:56:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:56:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:56:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:56:07,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:07,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630383943] [2023-12-19 15:56:07,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630383943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:07,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:07,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:56:07,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012646395] [2023-12-19 15:56:07,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:07,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:56:07,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:07,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:56:07,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:56:07,233 INFO L87 Difference]: Start difference. First operand 2427 states and 2862 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:07,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:07,593 INFO L93 Difference]: Finished difference Result 4369 states and 5139 transitions. [2023-12-19 15:56:07,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:56:07,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2023-12-19 15:56:07,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:07,596 INFO L225 Difference]: With dead ends: 4369 [2023-12-19 15:56:07,597 INFO L226 Difference]: Without dead ends: 2423 [2023-12-19 15:56:07,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:56:07,599 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 136 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:07,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 534 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:56:07,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2023-12-19 15:56:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2211. [2023-12-19 15:56:07,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2064 states have (on average 1.1453488372093024) internal successors, (2364), 2071 states have internal predecessors, (2364), 114 states have call successors, (114), 32 states have call predecessors, (114), 32 states have return successors, (114), 107 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-19 15:56:07,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 2592 transitions. [2023-12-19 15:56:07,699 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 2592 transitions. Word has length 159 [2023-12-19 15:56:07,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:07,699 INFO L495 AbstractCegarLoop]: Abstraction has 2211 states and 2592 transitions. [2023-12-19 15:56:07,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:07,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 2592 transitions. [2023-12-19 15:56:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-19 15:56:07,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:07,701 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:07,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-19 15:56:07,702 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:07,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1145736066, now seen corresponding path program 1 times [2023-12-19 15:56:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:07,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528873460] [2023-12-19 15:56:07,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:07,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:56:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:56:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:56:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:56:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:56:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:56:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:56:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:56:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:56:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:56:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:56:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:56:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:56:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:56:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:56:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:56:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:56:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:56:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:56:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:56:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:56:08,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:08,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528873460] [2023-12-19 15:56:08,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528873460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:08,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:08,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:56:08,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410841069] [2023-12-19 15:56:08,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:08,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:56:08,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:08,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:56:08,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:56:08,496 INFO L87 Difference]: Start difference. First operand 2211 states and 2592 transitions. Second operand has 7 states, 5 states have (on average 12.8) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-19 15:56:08,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:08,975 INFO L93 Difference]: Finished difference Result 5889 states and 6854 transitions. [2023-12-19 15:56:08,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:56:08,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.8) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 161 [2023-12-19 15:56:08,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:08,980 INFO L225 Difference]: With dead ends: 5889 [2023-12-19 15:56:08,980 INFO L226 Difference]: Without dead ends: 4159 [2023-12-19 15:56:08,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:56:08,984 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 58 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:08,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 523 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:56:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4159 states. [2023-12-19 15:56:09,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4159 to 4155. [2023-12-19 15:56:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4155 states, 3936 states have (on average 1.1392276422764227) internal successors, (4484), 3951 states have internal predecessors, (4484), 170 states have call successors, (170), 48 states have call predecessors, (170), 48 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2023-12-19 15:56:09,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4155 states to 4155 states and 4824 transitions. [2023-12-19 15:56:09,208 INFO L78 Accepts]: Start accepts. Automaton has 4155 states and 4824 transitions. Word has length 161 [2023-12-19 15:56:09,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:09,209 INFO L495 AbstractCegarLoop]: Abstraction has 4155 states and 4824 transitions. [2023-12-19 15:56:09,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.8) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-19 15:56:09,209 INFO L276 IsEmpty]: Start isEmpty. Operand 4155 states and 4824 transitions. [2023-12-19 15:56:09,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-19 15:56:09,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:09,213 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:09,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-19 15:56:09,213 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:09,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:09,213 INFO L85 PathProgramCache]: Analyzing trace with hash 2001798785, now seen corresponding path program 1 times [2023-12-19 15:56:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:09,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397030047] [2023-12-19 15:56:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:56:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:56:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:56:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:56:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:56:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:56:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:56:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:56:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:56:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:56:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:56:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:56:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:56:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:56:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:56:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:56:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:56:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:56:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:56:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:56:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:56:09,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:09,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397030047] [2023-12-19 15:56:09,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397030047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:09,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:09,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:56:09,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413127209] [2023-12-19 15:56:09,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:09,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:56:09,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:09,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:56:09,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:56:09,495 INFO L87 Difference]: Start difference. First operand 4155 states and 4824 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:56:09,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:09,973 INFO L93 Difference]: Finished difference Result 6286 states and 7300 transitions. [2023-12-19 15:56:09,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:56:09,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2023-12-19 15:56:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:09,981 INFO L225 Difference]: With dead ends: 6286 [2023-12-19 15:56:09,981 INFO L226 Difference]: Without dead ends: 6284 [2023-12-19 15:56:09,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:56:09,983 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 97 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:09,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1038 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:56:09,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6284 states. [2023-12-19 15:56:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6284 to 5887. [2023-12-19 15:56:10,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5887 states, 5668 states have (on average 1.141848976711362) internal successors, (6472), 5683 states have internal predecessors, (6472), 170 states have call successors, (170), 48 states have call predecessors, (170), 48 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2023-12-19 15:56:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 6812 transitions. [2023-12-19 15:56:10,215 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 6812 transitions. Word has length 162 [2023-12-19 15:56:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:10,215 INFO L495 AbstractCegarLoop]: Abstraction has 5887 states and 6812 transitions. [2023-12-19 15:56:10,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:56:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 6812 transitions. [2023-12-19 15:56:10,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-19 15:56:10,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:56:10,235 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:56:10,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-19 15:56:10,236 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:56:10,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:56:10,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1157793283, now seen corresponding path program 1 times [2023-12-19 15:56:10,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:56:10,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767728150] [2023-12-19 15:56:10,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:56:10,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:56:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:56:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:56:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:56:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:56:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:56:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:56:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 15:56:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 15:56:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 15:56:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 15:56:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 15:56:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 15:56:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 15:56:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 15:56:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 15:56:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 15:56:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 15:56:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 15:56:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 15:56:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 15:56:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:56:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:56:10,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:56:10,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767728150] [2023-12-19 15:56:10,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767728150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:56:10,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:56:10,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:56:10,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599969907] [2023-12-19 15:56:10,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:56:10,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:56:10,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:56:10,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:56:10,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:56:10,873 INFO L87 Difference]: Start difference. First operand 5887 states and 6812 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:11,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:56:11,767 INFO L93 Difference]: Finished difference Result 10716 states and 12370 transitions. [2023-12-19 15:56:11,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:56:11,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2023-12-19 15:56:11,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:56:11,768 INFO L225 Difference]: With dead ends: 10716 [2023-12-19 15:56:11,768 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 15:56:11,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:56:11,775 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 93 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:56:11,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 780 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:56:11,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 15:56:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 15:56:11,776 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 15:56:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 15:56:11,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 162 [2023-12-19 15:56:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:56:11,777 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 15:56:11,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:56:11,777 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 15:56:11,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 15:56:11,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:56:11,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-19 15:56:11,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 16:01:47,094 WARN L293 SmtUtils]: Spent 5.49m on a formula simplification. DAG size of input: 433 DAG size of output: 531 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:02:01,476 WARN L293 SmtUtils]: Spent 8.42s on a formula simplification. DAG size of input: 209 DAG size of output: 160 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:02:10,375 WARN L293 SmtUtils]: Spent 8.80s on a formula simplification. DAG size of input: 200 DAG size of output: 168 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:02:29,181 WARN L293 SmtUtils]: Spent 18.76s on a formula simplification. DAG size of input: 203 DAG size of output: 214 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:02:47,720 WARN L293 SmtUtils]: Spent 18.50s on a formula simplification. DAG size of input: 203 DAG size of output: 216 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:02:56,859 WARN L293 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 200 DAG size of output: 168 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:03:09,530 WARN L293 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 221 DAG size of output: 172 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:03:21,057 WARN L293 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 200 DAG size of output: 168 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:03:29,680 WARN L293 SmtUtils]: Spent 8.61s on a formula simplification. DAG size of input: 221 DAG size of output: 172 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:03:49,326 WARN L293 SmtUtils]: Spent 18.47s on a formula simplification. DAG size of input: 203 DAG size of output: 214 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:04:48,181 WARN L293 SmtUtils]: Spent 56.08s on a formula simplification. DAG size of input: 206 DAG size of output: 263 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:04:58,362 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 209 DAG size of output: 160 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:05:26,881 WARN L293 SmtUtils]: Spent 28.23s on a formula simplification. DAG size of input: 213 DAG size of output: 200 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:06:27,022 WARN L293 SmtUtils]: Spent 57.27s on a formula simplification. DAG size of input: 218 DAG size of output: 275 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:06:35,647 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification. DAG size of input: 200 DAG size of output: 168 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:07:33,717 WARN L293 SmtUtils]: Spent 58.07s on a formula simplification. DAG size of input: 218 DAG size of output: 275 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:07:42,118 WARN L293 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 200 DAG size of output: 168 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:07:53,359 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification. DAG size of input: 200 DAG size of output: 168 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:08:20,836 WARN L293 SmtUtils]: Spent 23.63s on a formula simplification. DAG size of input: 201 DAG size of output: 188 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:08:51,109 WARN L293 SmtUtils]: Spent 25.92s on a formula simplification. DAG size of input: 213 DAG size of output: 200 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 16:09:14,840 WARN L293 SmtUtils]: Spent 23.64s on a formula simplification. DAG size of input: 201 DAG size of output: 188 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Received shutdown request... [2023-12-19 16:09:32,639 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∧-2-3-3-5-4-5-8-5-8-5-8-5-8-5-5-5-5-5-5-4-5-3-5-3-5-3-5-3-5-3-5-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-27-5-6-8-5-8-7-6-6-5-6-5-5-5-4-5-2-2-1 context. [2023-12-19 16:09:32,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 16:09:32,649 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-19 16:09:32,650 INFO L158 Benchmark]: Toolchain (without parser) took 852906.40ms. Allocated memory was 306.2MB in the beginning and 1.3GB in the end (delta: 969.9MB). Free memory was 251.5MB in the beginning and 660.8MB in the end (delta: -409.3MB). Peak memory consumption was 562.6MB. Max. memory is 8.0GB. [2023-12-19 16:09:32,650 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 233.8MB. Free memory is still 182.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 16:09:32,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.22ms. Allocated memory is still 306.2MB. Free memory was 251.5MB in the beginning and 234.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 16:09:32,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.00ms. Allocated memory is still 306.2MB. Free memory was 234.9MB in the beginning and 230.9MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 16:09:32,651 INFO L158 Benchmark]: Boogie Preprocessor took 50.59ms. Allocated memory is still 306.2MB. Free memory was 230.9MB in the beginning and 226.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 16:09:32,651 INFO L158 Benchmark]: RCFGBuilder took 591.81ms. Allocated memory is still 306.2MB. Free memory was 226.7MB in the beginning and 258.6MB in the end (delta: -31.9MB). Peak memory consumption was 25.9MB. Max. memory is 8.0GB. [2023-12-19 16:09:32,651 INFO L158 Benchmark]: TraceAbstraction took 851913.66ms. Allocated memory was 306.2MB in the beginning and 1.3GB in the end (delta: 969.9MB). Free memory was 258.1MB in the beginning and 660.8MB in the end (delta: -402.8MB). Peak memory consumption was 568.2MB. Max. memory is 8.0GB. [2023-12-19 16:09:32,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 233.8MB. Free memory is still 182.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 281.22ms. Allocated memory is still 306.2MB. Free memory was 251.5MB in the beginning and 234.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.00ms. Allocated memory is still 306.2MB. Free memory was 234.9MB in the beginning and 230.9MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.59ms. Allocated memory is still 306.2MB. Free memory was 230.9MB in the beginning and 226.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 591.81ms. Allocated memory is still 306.2MB. Free memory was 226.7MB in the beginning and 258.6MB in the end (delta: -31.9MB). Peak memory consumption was 25.9MB. Max. memory is 8.0GB. * TraceAbstraction took 851913.66ms. Allocated memory was 306.2MB in the beginning and 1.3GB in the end (delta: 969.9MB). Free memory was 258.1MB in the beginning and 660.8MB in the end (delta: -402.8MB). Peak memory consumption was 568.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-23-10-6-6-4-6-5-6-5-6-5-4-5-3-4-3-3-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-28-10-6-6-4-6-5-6-5-6-5-4-5-3-4-3-3-3-2-2-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown