./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-70.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbc3d8d1a69e8bd3d6fe2e349933b2e0aa836a7f9d0aca281c4af875723b1f72 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:09:52,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:09:52,130 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 13:09:52,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:09:52,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:09:52,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:09:52,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:09:52,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:09:52,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:09:52,164 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:09:52,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:09:52,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:09:52,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:09:52,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:09:52,165 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:09:52,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:09:52,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:09:52,167 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 13:09:52,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:09:52,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 13:09:52,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:09:52,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:09:52,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:09:52,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:09:52,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:09:52,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 13:09:52,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:09:52,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:09:52,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:09:52,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:09:52,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:09:52,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:09:52,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:09:52,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:09:52,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:09:52,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:09:52,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:09:52,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:09:52,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:09:52,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:09:52,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:09:52,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:09:52,172 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbc3d8d1a69e8bd3d6fe2e349933b2e0aa836a7f9d0aca281c4af875723b1f72 [2024-11-22 13:09:52,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:09:52,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:09:52,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:09:52,378 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:09:52,379 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:09:52,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-70.i [2024-11-22 13:09:53,610 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:09:53,761 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:09:53,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-70.i [2024-11-22 13:09:53,768 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e861f3e/3929897cf7c6449f85a11768b53443de/FLAGefd80de58 [2024-11-22 13:09:54,172 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e861f3e/3929897cf7c6449f85a11768b53443de [2024-11-22 13:09:54,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:09:54,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:09:54,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:09:54,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:09:54,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:09:54,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@644b3e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54, skipping insertion in model container [2024-11-22 13:09:54,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:09:54,342 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-70.i[916,929] [2024-11-22 13:09:54,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:09:54,424 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:09:54,433 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-70.i[916,929] [2024-11-22 13:09:54,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:09:54,485 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:09:54,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54 WrapperNode [2024-11-22 13:09:54,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:09:54,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:09:54,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:09:54,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:09:54,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,556 INFO L138 Inliner]: procedures = 30, calls = 156, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 516 [2024-11-22 13:09:54,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:09:54,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:09:54,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:09:54,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:09:54,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,582 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-22 13:09:54,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,616 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:09:54,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:09:54,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:09:54,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:09:54,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (1/1) ... [2024-11-22 13:09:54,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:09:54,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:09:54,675 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) [2024-11-22 13:09:54,678 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 [2024-11-22 13:09:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:09:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-22 13:09:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-22 13:09:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-22 13:09:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 13:09:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-22 13:09:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 13:09:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 13:09:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 13:09:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 13:09:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:09:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:09:54,828 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:09:54,830 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:09:55,299 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-11-22 13:09:55,300 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:09:55,309 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:09:55,310 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 13:09:55,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:55 BoogieIcfgContainer [2024-11-22 13:09:55,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:09:55,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:09:55,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:09:55,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:09:55,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:54" (1/3) ... [2024-11-22 13:09:55,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b038158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:55, skipping insertion in model container [2024-11-22 13:09:55,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:54" (2/3) ... [2024-11-22 13:09:55,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b038158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:55, skipping insertion in model container [2024-11-22 13:09:55,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:55" (3/3) ... [2024-11-22 13:09:55,316 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-70.i [2024-11-22 13:09:55,330 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:09:55,330 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 13:09:55,373 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:09:55,379 INFO L333 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, 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;@4198430b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:09:55,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 13:09:55,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 96 states have (on average 1.4375) internal successors, (138), 97 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:09:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 13:09:55,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:09:55,392 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:09:55,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:09:55,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:09:55,396 INFO L85 PathProgramCache]: Analyzing trace with hash 321983463, now seen corresponding path program 1 times [2024-11-22 13:09:55,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:09:55,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086552528] [2024-11-22 13:09:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:55,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:09:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-22 13:09:56,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:09:56,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086552528] [2024-11-22 13:09:56,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086552528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:09:56,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966085726] [2024-11-22 13:09:56,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:56,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:09:56,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:09:56,005 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) [2024-11-22 13:09:56,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 13:09:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:56,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 13:09:56,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:09:56,265 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:09:56,266 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:09:56,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966085726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:09:56,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:09:56,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 13:09:56,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317720232] [2024-11-22 13:09:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:09:56,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:09:56,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:09:56,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:09:56,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:09:56,300 INFO L87 Difference]: Start difference. First operand has 111 states, 96 states have (on average 1.4375) internal successors, (138), 97 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:56,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:09:56,345 INFO L93 Difference]: Finished difference Result 218 states and 334 transitions. [2024-11-22 13:09:56,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:09:56,348 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-22 13:09:56,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:09:56,355 INFO L225 Difference]: With dead ends: 218 [2024-11-22 13:09:56,355 INFO L226 Difference]: Without dead ends: 110 [2024-11-22 13:09:56,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:09:56,360 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:09:56,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 445 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:09:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-22 13:09:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2024-11-22 13:09:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.4) internal successors, (133), 95 states have internal predecessors, (133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:09:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2024-11-22 13:09:56,392 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 116 [2024-11-22 13:09:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:09:56,396 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2024-11-22 13:09:56,397 INFO L472 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:56,397 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2024-11-22 13:09:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 13:09:56,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:09:56,401 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:09:56,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 13:09:56,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 13:09:56,602 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:09:56,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:09:56,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2096990825, now seen corresponding path program 1 times [2024-11-22 13:09:56,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:09:56,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148939863] [2024-11-22 13:09:56,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:56,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:09:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-22 13:09:56,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:09:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148939863] [2024-11-22 13:09:56,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148939863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:09:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440613286] [2024-11-22 13:09:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:56,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:09:56,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:09:56,873 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) [2024-11-22 13:09:56,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 13:09:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:57,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 13:09:57,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:09:57,085 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:09:57,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:09:57,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440613286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:09:57,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:09:57,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 13:09:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786728241] [2024-11-22 13:09:57,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:09:57,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:09:57,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:09:57,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:09:57,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:09:57,089 INFO L87 Difference]: Start difference. First operand 109 states and 157 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:57,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:09:57,126 INFO L93 Difference]: Finished difference Result 218 states and 315 transitions. [2024-11-22 13:09:57,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:09:57,127 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-22 13:09:57,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:09:57,128 INFO L225 Difference]: With dead ends: 218 [2024-11-22 13:09:57,129 INFO L226 Difference]: Without dead ends: 112 [2024-11-22 13:09:57,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:09:57,132 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:09:57,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:09:57,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-22 13:09:57,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-22 13:09:57,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:09:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-11-22 13:09:57,150 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 116 [2024-11-22 13:09:57,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:09:57,151 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-11-22 13:09:57,151 INFO L472 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:57,151 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-11-22 13:09:57,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 13:09:57,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:09:57,153 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:09:57,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 13:09:57,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 13:09:57,353 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:09:57,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:09:57,354 INFO L85 PathProgramCache]: Analyzing trace with hash 2098837867, now seen corresponding path program 1 times [2024-11-22 13:09:57,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:09:57,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147477419] [2024-11-22 13:09:57,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:57,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:09:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:57,507 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-22 13:09:57,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:09:57,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147477419] [2024-11-22 13:09:57,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147477419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:09:57,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24640276] [2024-11-22 13:09:57,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:57,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:09:57,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:09:57,511 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) [2024-11-22 13:09:57,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 13:09:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:57,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 13:09:57,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:09:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:09:57,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:09:57,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24640276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:09:57,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:09:57,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-22 13:09:57,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449424404] [2024-11-22 13:09:57,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:09:57,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:09:57,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:09:57,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:09:57,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:09:57,693 INFO L87 Difference]: Start difference. First operand 111 states and 159 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:57,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:09:57,725 INFO L93 Difference]: Finished difference Result 221 states and 318 transitions. [2024-11-22 13:09:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:09:57,726 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-22 13:09:57,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:09:57,727 INFO L225 Difference]: With dead ends: 221 [2024-11-22 13:09:57,728 INFO L226 Difference]: Without dead ends: 113 [2024-11-22 13:09:57,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:09:57,730 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:09:57,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:09:57,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-22 13:09:57,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-22 13:09:57,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.3838383838383839) internal successors, (137), 99 states have internal predecessors, (137), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:09:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2024-11-22 13:09:57,742 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 116 [2024-11-22 13:09:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:09:57,743 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2024-11-22 13:09:57,744 INFO L472 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2024-11-22 13:09:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 13:09:57,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:09:57,746 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:09:57,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 13:09:57,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:09:57,947 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:09:57,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:09:57,948 INFO L85 PathProgramCache]: Analyzing trace with hash 338748198, now seen corresponding path program 1 times [2024-11-22 13:09:57,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:09:57,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855152850] [2024-11-22 13:09:57,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:57,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:09:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:58,268 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:09:58,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:09:58,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855152850] [2024-11-22 13:09:58,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855152850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:09:58,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:09:58,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:09:58,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222962440] [2024-11-22 13:09:58,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:09:58,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:09:58,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:09:58,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:09:58,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:09:58,273 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:09:58,470 INFO L93 Difference]: Finished difference Result 282 states and 402 transitions. [2024-11-22 13:09:58,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:09:58,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-22 13:09:58,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:09:58,472 INFO L225 Difference]: With dead ends: 282 [2024-11-22 13:09:58,472 INFO L226 Difference]: Without dead ends: 172 [2024-11-22 13:09:58,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:09:58,473 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 71 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:09:58,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 415 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:09:58,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-22 13:09:58,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 116. [2024-11-22 13:09:58,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 102 states have (on average 1.3725490196078431) internal successors, (140), 102 states have internal predecessors, (140), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:09:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 164 transitions. [2024-11-22 13:09:58,479 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 164 transitions. Word has length 118 [2024-11-22 13:09:58,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:09:58,480 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 164 transitions. [2024-11-22 13:09:58,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 164 transitions. [2024-11-22 13:09:58,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 13:09:58,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:09:58,481 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:09:58,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 13:09:58,481 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:09:58,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:09:58,482 INFO L85 PathProgramCache]: Analyzing trace with hash 541336422, now seen corresponding path program 1 times [2024-11-22 13:09:58,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:09:58,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464611705] [2024-11-22 13:09:58,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:58,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:09:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:09:58,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:09:58,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464611705] [2024-11-22 13:09:58,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464611705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:09:58,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:09:58,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:09:58,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151902750] [2024-11-22 13:09:58,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:09:58,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:09:58,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:09:58,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:09:58,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:09:58,710 INFO L87 Difference]: Start difference. First operand 116 states and 164 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:58,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:09:58,733 INFO L93 Difference]: Finished difference Result 230 states and 327 transitions. [2024-11-22 13:09:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:09:58,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-22 13:09:58,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:09:58,737 INFO L225 Difference]: With dead ends: 230 [2024-11-22 13:09:58,737 INFO L226 Difference]: Without dead ends: 117 [2024-11-22 13:09:58,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:09:58,739 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:09:58,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 442 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:09:58,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-22 13:09:58,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-22 13:09:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 103 states have (on average 1.3689320388349515) internal successors, (141), 103 states have internal predecessors, (141), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:09:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 165 transitions. [2024-11-22 13:09:58,749 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 165 transitions. Word has length 118 [2024-11-22 13:09:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:09:58,749 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 165 transitions. [2024-11-22 13:09:58,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:58,750 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 165 transitions. [2024-11-22 13:09:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 13:09:58,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:09:58,752 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:09:58,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 13:09:58,752 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:09:58,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:09:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash 995398076, now seen corresponding path program 1 times [2024-11-22 13:09:58,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:09:58,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498677649] [2024-11-22 13:09:58,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:58,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:09:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:58,920 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:09:58,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:09:58,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498677649] [2024-11-22 13:09:58,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498677649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:09:58,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:09:58,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:09:58,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069645007] [2024-11-22 13:09:58,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:09:58,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:09:58,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:09:58,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:09:58,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:09:58,923 INFO L87 Difference]: Start difference. First operand 117 states and 165 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:58,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:09:58,945 INFO L93 Difference]: Finished difference Result 231 states and 327 transitions. [2024-11-22 13:09:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:09:58,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-22 13:09:58,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:09:58,946 INFO L225 Difference]: With dead ends: 231 [2024-11-22 13:09:58,947 INFO L226 Difference]: Without dead ends: 117 [2024-11-22 13:09:58,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:09:58,948 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:09:58,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 441 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:09:58,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-22 13:09:58,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2024-11-22 13:09:58,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 102 states have (on average 1.3627450980392157) internal successors, (139), 102 states have internal predecessors, (139), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:09:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 163 transitions. [2024-11-22 13:09:58,961 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 163 transitions. Word has length 119 [2024-11-22 13:09:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:09:58,962 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 163 transitions. [2024-11-22 13:09:58,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 163 transitions. [2024-11-22 13:09:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 13:09:58,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:09:58,966 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:09:58,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 13:09:58,966 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:09:58,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:09:58,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1190083871, now seen corresponding path program 1 times [2024-11-22 13:09:58,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:09:58,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088270831] [2024-11-22 13:09:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:58,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:09:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:09:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:09:59,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:09:59,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088270831] [2024-11-22 13:09:59,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088270831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:09:59,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:09:59,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 13:09:59,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379554208] [2024-11-22 13:09:59,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:09:59,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:09:59,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:09:59,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:09:59,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:09:59,149 INFO L87 Difference]: Start difference. First operand 116 states and 163 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:59,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:09:59,157 INFO L93 Difference]: Finished difference Result 229 states and 323 transitions. [2024-11-22 13:09:59,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:09:59,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-22 13:09:59,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:09:59,158 INFO L225 Difference]: With dead ends: 229 [2024-11-22 13:09:59,158 INFO L226 Difference]: Without dead ends: 116 [2024-11-22 13:09:59,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:09:59,159 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 301 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 [2024-11-22 13:09:59,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:09:59,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-22 13:09:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-22 13:09:59,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 102 states have (on average 1.3529411764705883) internal successors, (138), 102 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:09:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 162 transitions. [2024-11-22 13:09:59,171 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 162 transitions. Word has length 120 [2024-11-22 13:09:59,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:09:59,172 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 162 transitions. [2024-11-22 13:09:59,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:09:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 162 transitions. [2024-11-22 13:09:59,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 13:09:59,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:09:59,173 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:09:59,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 13:09:59,173 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:09:59,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:09:59,173 INFO L85 PathProgramCache]: Analyzing trace with hash -498859871, now seen corresponding path program 1 times [2024-11-22 13:09:59,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:09:59,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485873881] [2024-11-22 13:09:59,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:09:59,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:09:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:00,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:00,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485873881] [2024-11-22 13:10:00,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485873881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:00,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:00,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:10:00,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239964477] [2024-11-22 13:10:00,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:00,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:10:00,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:10:00,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:10:00,157 INFO L87 Difference]: Start difference. First operand 116 states and 162 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:00,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:00,386 INFO L93 Difference]: Finished difference Result 281 states and 390 transitions. [2024-11-22 13:10:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:10:00,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-22 13:10:00,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:00,388 INFO L225 Difference]: With dead ends: 281 [2024-11-22 13:10:00,388 INFO L226 Difference]: Without dead ends: 168 [2024-11-22 13:10:00,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:10:00,389 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 55 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:00,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 506 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:10:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-22 13:10:00,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 131. [2024-11-22 13:10:00,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 117 states have (on average 1.3418803418803418) internal successors, (157), 117 states have internal predecessors, (157), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:10:00,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 181 transitions. [2024-11-22 13:10:00,394 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 181 transitions. Word has length 120 [2024-11-22 13:10:00,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:00,395 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 181 transitions. [2024-11-22 13:10:00,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:00,395 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 181 transitions. [2024-11-22 13:10:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 13:10:00,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:00,396 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:00,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 13:10:00,396 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:00,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:00,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1573808733, now seen corresponding path program 1 times [2024-11-22 13:10:00,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:00,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982516718] [2024-11-22 13:10:00,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:00,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:01,168 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:01,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:01,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982516718] [2024-11-22 13:10:01,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982516718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:01,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:01,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:10:01,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653288812] [2024-11-22 13:10:01,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:01,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:10:01,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:01,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:10:01,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:10:01,170 INFO L87 Difference]: Start difference. First operand 131 states and 181 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:01,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:01,366 INFO L93 Difference]: Finished difference Result 297 states and 410 transitions. [2024-11-22 13:10:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:10:01,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-22 13:10:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:01,367 INFO L225 Difference]: With dead ends: 297 [2024-11-22 13:10:01,368 INFO L226 Difference]: Without dead ends: 169 [2024-11-22 13:10:01,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:10:01,368 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 101 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:01,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 418 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:10:01,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-22 13:10:01,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 135. [2024-11-22 13:10:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 121 states have (on average 1.3305785123966942) internal successors, (161), 121 states have internal predecessors, (161), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:10:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 185 transitions. [2024-11-22 13:10:01,374 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 185 transitions. Word has length 121 [2024-11-22 13:10:01,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:01,375 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 185 transitions. [2024-11-22 13:10:01,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 185 transitions. [2024-11-22 13:10:01,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 13:10:01,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:01,376 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:01,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 13:10:01,376 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:01,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:01,377 INFO L85 PathProgramCache]: Analyzing trace with hash 430177635, now seen corresponding path program 1 times [2024-11-22 13:10:01,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:01,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039993168] [2024-11-22 13:10:01,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:01,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:01,525 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-22 13:10:01,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:01,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039993168] [2024-11-22 13:10:01,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039993168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:10:01,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130506619] [2024-11-22 13:10:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:01,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:10:01,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:10:01,528 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) [2024-11-22 13:10:01,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 13:10:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:01,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 13:10:01,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:10:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:01,723 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:10:01,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130506619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:01,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:10:01,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-22 13:10:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710958182] [2024-11-22 13:10:01,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:01,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:10:01,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:01,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:10:01,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:10:01,725 INFO L87 Difference]: Start difference. First operand 135 states and 185 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:01,745 INFO L93 Difference]: Finished difference Result 270 states and 371 transitions. [2024-11-22 13:10:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:10:01,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-22 13:10:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:01,746 INFO L225 Difference]: With dead ends: 270 [2024-11-22 13:10:01,747 INFO L226 Difference]: Without dead ends: 138 [2024-11-22 13:10:01,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:10:01,747 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:01,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 583 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:10:01,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-22 13:10:01,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-22 13:10:01,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 124 states have (on average 1.3225806451612903) internal successors, (164), 124 states have internal predecessors, (164), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 13:10:01,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 188 transitions. [2024-11-22 13:10:01,751 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 188 transitions. Word has length 121 [2024-11-22 13:10:01,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:01,752 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 188 transitions. [2024-11-22 13:10:01,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:01,752 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 188 transitions. [2024-11-22 13:10:01,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 13:10:01,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:01,753 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:01,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 13:10:01,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:10:01,954 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:01,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:01,954 INFO L85 PathProgramCache]: Analyzing trace with hash -587009944, now seen corresponding path program 1 times [2024-11-22 13:10:01,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:01,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933089272] [2024-11-22 13:10:01,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:01,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:02,775 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:02,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:02,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933089272] [2024-11-22 13:10:02,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933089272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:02,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:02,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:10:02,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559945862] [2024-11-22 13:10:02,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:02,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:10:02,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:02,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:10:02,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:10:02,777 INFO L87 Difference]: Start difference. First operand 138 states and 188 transitions. Second operand has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 13:10:03,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:03,131 INFO L93 Difference]: Finished difference Result 345 states and 467 transitions. [2024-11-22 13:10:03,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:10:03,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2024-11-22 13:10:03,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:03,132 INFO L225 Difference]: With dead ends: 345 [2024-11-22 13:10:03,132 INFO L226 Difference]: Without dead ends: 210 [2024-11-22 13:10:03,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:10:03,133 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 68 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:03,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 720 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:10:03,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-22 13:10:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2024-11-22 13:10:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 190 states have (on average 1.3210526315789475) internal successors, (251), 191 states have internal predecessors, (251), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:10:03,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 279 transitions. [2024-11-22 13:10:03,139 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 279 transitions. Word has length 122 [2024-11-22 13:10:03,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:03,139 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 279 transitions. [2024-11-22 13:10:03,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 13:10:03,139 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 279 transitions. [2024-11-22 13:10:03,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 13:10:03,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:03,140 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:03,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 13:10:03,140 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:03,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:03,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1608078298, now seen corresponding path program 1 times [2024-11-22 13:10:03,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:03,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333354855] [2024-11-22 13:10:03,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:03,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:04,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:04,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333354855] [2024-11-22 13:10:04,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333354855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:04,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:04,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 13:10:04,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162176863] [2024-11-22 13:10:04,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:04,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 13:10:04,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 13:10:04,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:10:04,164 INFO L87 Difference]: Start difference. First operand 207 states and 279 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:04,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:04,746 INFO L93 Difference]: Finished difference Result 487 states and 649 transitions. [2024-11-22 13:10:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 13:10:04,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-22 13:10:04,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:04,749 INFO L225 Difference]: With dead ends: 487 [2024-11-22 13:10:04,749 INFO L226 Difference]: Without dead ends: 282 [2024-11-22 13:10:04,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-22 13:10:04,750 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 211 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:04,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1029 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 13:10:04,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-22 13:10:04,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 221. [2024-11-22 13:10:04,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 204 states have (on average 1.3186274509803921) internal successors, (269), 205 states have internal predecessors, (269), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:10:04,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 297 transitions. [2024-11-22 13:10:04,757 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 297 transitions. Word has length 122 [2024-11-22 13:10:04,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:04,757 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 297 transitions. [2024-11-22 13:10:04,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:04,757 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 297 transitions. [2024-11-22 13:10:04,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 13:10:04,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:04,758 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:04,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 13:10:04,758 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:04,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:04,759 INFO L85 PathProgramCache]: Analyzing trace with hash 315149736, now seen corresponding path program 1 times [2024-11-22 13:10:04,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:04,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132234718] [2024-11-22 13:10:04,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:04,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:06,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:06,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132234718] [2024-11-22 13:10:06,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132234718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:06,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:06,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 13:10:06,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290893352] [2024-11-22 13:10:06,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:06,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 13:10:06,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:06,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 13:10:06,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-22 13:10:06,379 INFO L87 Difference]: Start difference. First operand 221 states and 297 transitions. Second operand has 14 states, 12 states have (on average 5.416666666666667) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 13:10:07,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:07,571 INFO L93 Difference]: Finished difference Result 526 states and 699 transitions. [2024-11-22 13:10:07,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 13:10:07,572 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.416666666666667) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2024-11-22 13:10:07,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:07,573 INFO L225 Difference]: With dead ends: 526 [2024-11-22 13:10:07,573 INFO L226 Difference]: Without dead ends: 308 [2024-11-22 13:10:07,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-22 13:10:07,574 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 190 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:07,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 1572 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 13:10:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-22 13:10:07,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 234. [2024-11-22 13:10:07,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 217 states have (on average 1.3179723502304148) internal successors, (286), 218 states have internal predecessors, (286), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:10:07,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 314 transitions. [2024-11-22 13:10:07,586 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 314 transitions. Word has length 122 [2024-11-22 13:10:07,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:07,587 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 314 transitions. [2024-11-22 13:10:07,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.416666666666667) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 13:10:07,587 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 314 transitions. [2024-11-22 13:10:07,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 13:10:07,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:07,588 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:07,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 13:10:07,589 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:07,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:07,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1288609818, now seen corresponding path program 1 times [2024-11-22 13:10:07,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:07,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625544084] [2024-11-22 13:10:07,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:07,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:09,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:09,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625544084] [2024-11-22 13:10:09,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625544084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:09,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:09,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 13:10:09,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618935835] [2024-11-22 13:10:09,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:09,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 13:10:09,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:09,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 13:10:09,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 13:10:09,054 INFO L87 Difference]: Start difference. First operand 234 states and 314 transitions. Second operand has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:10,294 INFO L93 Difference]: Finished difference Result 658 states and 892 transitions. [2024-11-22 13:10:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 13:10:10,295 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-22 13:10:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:10,297 INFO L225 Difference]: With dead ends: 658 [2024-11-22 13:10:10,297 INFO L226 Difference]: Without dead ends: 427 [2024-11-22 13:10:10,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-22 13:10:10,298 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 255 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:10,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1682 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 13:10:10,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-22 13:10:10,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 247. [2024-11-22 13:10:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 230 states have (on average 1.3217391304347825) internal successors, (304), 231 states have internal predecessors, (304), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:10:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 332 transitions. [2024-11-22 13:10:10,312 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 332 transitions. Word has length 122 [2024-11-22 13:10:10,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:10,313 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 332 transitions. [2024-11-22 13:10:10,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:10,313 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 332 transitions. [2024-11-22 13:10:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 13:10:10,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:10,314 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:10,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 13:10:10,314 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:10,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:10,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1985289124, now seen corresponding path program 1 times [2024-11-22 13:10:10,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:10,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687882753] [2024-11-22 13:10:10,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:10,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:11,215 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:11,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:11,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687882753] [2024-11-22 13:10:11,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687882753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:11,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:11,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 13:10:11,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656610316] [2024-11-22 13:10:11,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:11,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:10:11,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:11,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:10:11,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:10:11,217 INFO L87 Difference]: Start difference. First operand 247 states and 332 transitions. Second operand has 10 states, 8 states have (on average 8.125) internal successors, (65), 10 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 13:10:12,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:12,013 INFO L93 Difference]: Finished difference Result 678 states and 911 transitions. [2024-11-22 13:10:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 13:10:12,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.125) internal successors, (65), 10 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2024-11-22 13:10:12,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:12,016 INFO L225 Difference]: With dead ends: 678 [2024-11-22 13:10:12,016 INFO L226 Difference]: Without dead ends: 434 [2024-11-22 13:10:12,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-22 13:10:12,018 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 279 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:12,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1372 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 13:10:12,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-22 13:10:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 274. [2024-11-22 13:10:12,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 257 states have (on average 1.3229571984435797) internal successors, (340), 258 states have internal predecessors, (340), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:10:12,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 368 transitions. [2024-11-22 13:10:12,030 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 368 transitions. Word has length 122 [2024-11-22 13:10:12,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:12,030 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 368 transitions. [2024-11-22 13:10:12,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.125) internal successors, (65), 10 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 13:10:12,031 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 368 transitions. [2024-11-22 13:10:12,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 13:10:12,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:12,032 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:12,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 13:10:12,032 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:12,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:12,032 INFO L85 PathProgramCache]: Analyzing trace with hash -386450138, now seen corresponding path program 1 times [2024-11-22 13:10:12,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:12,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164450851] [2024-11-22 13:10:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:12,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:12,694 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:12,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:12,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164450851] [2024-11-22 13:10:12,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164450851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:12,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:12,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:10:12,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560743708] [2024-11-22 13:10:12,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:12,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:10:12,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:12,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:10:12,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:10:12,696 INFO L87 Difference]: Start difference. First operand 274 states and 368 transitions. Second operand has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 13:10:13,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:13,101 INFO L93 Difference]: Finished difference Result 637 states and 850 transitions. [2024-11-22 13:10:13,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:10:13,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2024-11-22 13:10:13,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:13,103 INFO L225 Difference]: With dead ends: 637 [2024-11-22 13:10:13,103 INFO L226 Difference]: Without dead ends: 366 [2024-11-22 13:10:13,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:10:13,104 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 65 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:13,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 860 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 13:10:13,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-22 13:10:13,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 236. [2024-11-22 13:10:13,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 219 states have (on average 1.3105022831050228) internal successors, (287), 220 states have internal predecessors, (287), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:10:13,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 315 transitions. [2024-11-22 13:10:13,115 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 315 transitions. Word has length 122 [2024-11-22 13:10:13,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:13,115 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 315 transitions. [2024-11-22 13:10:13,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 13:10:13,115 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 315 transitions. [2024-11-22 13:10:13,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 13:10:13,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:13,116 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:13,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 13:10:13,116 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:13,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:13,117 INFO L85 PathProgramCache]: Analyzing trace with hash -11493700, now seen corresponding path program 1 times [2024-11-22 13:10:13,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:13,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067813228] [2024-11-22 13:10:13,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:13,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:13,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:13,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067813228] [2024-11-22 13:10:13,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067813228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:13,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:13,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:10:13,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264371561] [2024-11-22 13:10:13,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:13,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:10:13,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:13,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:10:13,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:10:13,256 INFO L87 Difference]: Start difference. First operand 236 states and 315 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:13,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:13,408 INFO L93 Difference]: Finished difference Result 506 states and 674 transitions. [2024-11-22 13:10:13,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:10:13,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-22 13:10:13,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:13,410 INFO L225 Difference]: With dead ends: 506 [2024-11-22 13:10:13,411 INFO L226 Difference]: Without dead ends: 273 [2024-11-22 13:10:13,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:10:13,412 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 43 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:13,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 488 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:10:13,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-22 13:10:13,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 239. [2024-11-22 13:10:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 222 states have (on average 1.3063063063063063) internal successors, (290), 223 states have internal predecessors, (290), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:10:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2024-11-22 13:10:13,422 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 123 [2024-11-22 13:10:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:13,422 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2024-11-22 13:10:13,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2024-11-22 13:10:13,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 13:10:13,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:13,424 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:13,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 13:10:13,424 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:13,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:13,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2094466316, now seen corresponding path program 1 times [2024-11-22 13:10:13,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:13,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778561644] [2024-11-22 13:10:13,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:13,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:13,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:13,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778561644] [2024-11-22 13:10:13,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778561644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:13,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:13,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:10:13,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794143134] [2024-11-22 13:10:13,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:13,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:10:13,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:13,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:10:13,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:10:13,611 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:13,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:13,933 INFO L93 Difference]: Finished difference Result 630 states and 840 transitions. [2024-11-22 13:10:13,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:10:13,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-22 13:10:13,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:13,935 INFO L225 Difference]: With dead ends: 630 [2024-11-22 13:10:13,935 INFO L226 Difference]: Without dead ends: 394 [2024-11-22 13:10:13,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:10:13,935 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 124 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:13,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 392 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:10:13,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-22 13:10:13,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 243. [2024-11-22 13:10:13,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 226 states have (on average 1.2920353982300885) internal successors, (292), 227 states have internal predecessors, (292), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:10:13,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 320 transitions. [2024-11-22 13:10:13,949 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 320 transitions. Word has length 123 [2024-11-22 13:10:13,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:13,949 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 320 transitions. [2024-11-22 13:10:13,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 320 transitions. [2024-11-22 13:10:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-22 13:10:13,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:13,950 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:13,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 13:10:13,950 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:13,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:13,951 INFO L85 PathProgramCache]: Analyzing trace with hash 882604046, now seen corresponding path program 1 times [2024-11-22 13:10:13,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:13,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654417058] [2024-11-22 13:10:13,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:13,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:32,488 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:32,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:32,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654417058] [2024-11-22 13:10:32,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654417058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:32,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:32,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 13:10:32,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135329310] [2024-11-22 13:10:32,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:32,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 13:10:32,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:32,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 13:10:32,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-22 13:10:32,490 INFO L87 Difference]: Start difference. First operand 243 states and 320 transitions. Second operand has 14 states, 11 states have (on average 6.090909090909091) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-22 13:10:41,469 WARN L286 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 137 DAG size of output: 102 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-22 13:10:50,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 13:10:51,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 13:10:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:52,925 INFO L93 Difference]: Finished difference Result 539 states and 707 transitions. [2024-11-22 13:10:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 13:10:52,926 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 6.090909090909091) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 4 states have call successors, (12) Word has length 124 [2024-11-22 13:10:52,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:52,927 INFO L225 Difference]: With dead ends: 539 [2024-11-22 13:10:52,927 INFO L226 Difference]: Without dead ends: 299 [2024-11-22 13:10:52,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-22 13:10:52,928 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 72 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:52,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1664 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-22 13:10:52,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-22 13:10:52,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 233. [2024-11-22 13:10:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 216 states have (on average 1.2916666666666667) internal successors, (279), 217 states have internal predecessors, (279), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:10:52,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 307 transitions. [2024-11-22 13:10:52,943 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 307 transitions. Word has length 124 [2024-11-22 13:10:52,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:52,944 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 307 transitions. [2024-11-22 13:10:52,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 6.090909090909091) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-22 13:10:52,946 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 307 transitions. [2024-11-22 13:10:52,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-22 13:10:52,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:52,946 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:52,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 13:10:52,947 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:52,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:52,947 INFO L85 PathProgramCache]: Analyzing trace with hash 589855564, now seen corresponding path program 1 times [2024-11-22 13:10:52,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:52,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803088151] [2024-11-22 13:10:52,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:52,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:53,943 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:53,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:53,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803088151] [2024-11-22 13:10:53,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803088151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:53,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:53,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:10:53,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824122122] [2024-11-22 13:10:53,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:53,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:10:53,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:53,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:10:53,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:10:53,945 INFO L87 Difference]: Start difference. First operand 233 states and 307 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:54,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:54,734 INFO L93 Difference]: Finished difference Result 561 states and 743 transitions. [2024-11-22 13:10:54,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 13:10:54,735 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2024-11-22 13:10:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:54,736 INFO L225 Difference]: With dead ends: 561 [2024-11-22 13:10:54,736 INFO L226 Difference]: Without dead ends: 331 [2024-11-22 13:10:54,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:10:54,737 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 120 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:54,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1493 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 13:10:54,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-22 13:10:54,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 314. [2024-11-22 13:10:54,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 283 states have (on average 1.2968197879858658) internal successors, (367), 285 states have internal predecessors, (367), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 13:10:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 419 transitions. [2024-11-22 13:10:54,758 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 419 transitions. Word has length 124 [2024-11-22 13:10:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:54,758 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 419 transitions. [2024-11-22 13:10:54,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 419 transitions. [2024-11-22 13:10:54,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 13:10:54,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:54,759 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:54,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 13:10:54,759 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:54,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:54,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1729668551, now seen corresponding path program 1 times [2024-11-22 13:10:54,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:54,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462329616] [2024-11-22 13:10:54,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:54,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:54,850 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:54,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:54,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462329616] [2024-11-22 13:10:54,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462329616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:54,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:54,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:10:54,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201439230] [2024-11-22 13:10:54,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:54,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:10:54,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:54,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:10:54,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:10:54,852 INFO L87 Difference]: Start difference. First operand 314 states and 419 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:54,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:54,880 INFO L93 Difference]: Finished difference Result 625 states and 835 transitions. [2024-11-22 13:10:54,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:10:54,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 125 [2024-11-22 13:10:54,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:54,882 INFO L225 Difference]: With dead ends: 625 [2024-11-22 13:10:54,882 INFO L226 Difference]: Without dead ends: 314 [2024-11-22 13:10:54,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:10:54,883 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:54,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 433 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:10:54,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-22 13:10:54,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2024-11-22 13:10:54,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 283 states have (on average 1.2862190812720848) internal successors, (364), 285 states have internal predecessors, (364), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 13:10:54,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 416 transitions. [2024-11-22 13:10:54,905 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 416 transitions. Word has length 125 [2024-11-22 13:10:54,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:54,906 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 416 transitions. [2024-11-22 13:10:54,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:54,906 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 416 transitions. [2024-11-22 13:10:54,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 13:10:54,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:54,907 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:54,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 13:10:54,908 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:54,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:54,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1895486879, now seen corresponding path program 1 times [2024-11-22 13:10:54,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:54,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952080370] [2024-11-22 13:10:54,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:54,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:56,202 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:56,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:56,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952080370] [2024-11-22 13:10:56,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952080370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:56,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:56,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 13:10:56,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429620236] [2024-11-22 13:10:56,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:56,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 13:10:56,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:56,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 13:10:56,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:10:56,204 INFO L87 Difference]: Start difference. First operand 314 states and 416 transitions. Second operand has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:57,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:57,735 INFO L93 Difference]: Finished difference Result 759 states and 991 transitions. [2024-11-22 13:10:57,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 13:10:57,736 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-22 13:10:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:57,738 INFO L225 Difference]: With dead ends: 759 [2024-11-22 13:10:57,738 INFO L226 Difference]: Without dead ends: 448 [2024-11-22 13:10:57,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2024-11-22 13:10:57,739 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 243 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:57,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1682 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 13:10:57,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-22 13:10:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 335. [2024-11-22 13:10:57,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 304 states have (on average 1.2861842105263157) internal successors, (391), 306 states have internal predecessors, (391), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 13:10:57,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 443 transitions. [2024-11-22 13:10:57,769 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 443 transitions. Word has length 125 [2024-11-22 13:10:57,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:57,770 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 443 transitions. [2024-11-22 13:10:57,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:57,770 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 443 transitions. [2024-11-22 13:10:57,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 13:10:57,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:57,771 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:57,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 13:10:57,771 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:57,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:57,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1193887005, now seen corresponding path program 1 times [2024-11-22 13:10:57,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:57,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782485927] [2024-11-22 13:10:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:58,335 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:58,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:58,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782485927] [2024-11-22 13:10:58,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782485927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:58,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:58,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:10:58,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190231925] [2024-11-22 13:10:58,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:58,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:10:58,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:58,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:10:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:10:58,338 INFO L87 Difference]: Start difference. First operand 335 states and 443 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:58,609 INFO L93 Difference]: Finished difference Result 644 states and 851 transitions. [2024-11-22 13:10:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:10:58,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-22 13:10:58,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:58,611 INFO L225 Difference]: With dead ends: 644 [2024-11-22 13:10:58,611 INFO L226 Difference]: Without dead ends: 312 [2024-11-22 13:10:58,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:10:58,612 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 66 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:58,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 622 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:10:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-22 13:10:58,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 308. [2024-11-22 13:10:58,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 277 states have (on average 1.2779783393501805) internal successors, (354), 279 states have internal predecessors, (354), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 13:10:58,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 406 transitions. [2024-11-22 13:10:58,633 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 406 transitions. Word has length 125 [2024-11-22 13:10:58,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:58,633 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 406 transitions. [2024-11-22 13:10:58,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:10:58,633 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 406 transitions. [2024-11-22 13:10:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 13:10:58,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:58,634 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:58,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 13:10:58,634 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:58,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:58,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2014807907, now seen corresponding path program 1 times [2024-11-22 13:10:58,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:58,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724898146] [2024-11-22 13:10:58,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:58,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:10:58,872 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:10:58,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:10:58,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724898146] [2024-11-22 13:10:58,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724898146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:10:58,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:10:58,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:10:58,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481570860] [2024-11-22 13:10:58,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:10:58,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:10:58,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:10:58,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:10:58,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:10:58,873 INFO L87 Difference]: Start difference. First operand 308 states and 406 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:59,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:10:59,106 INFO L93 Difference]: Finished difference Result 902 states and 1192 transitions. [2024-11-22 13:10:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 13:10:59,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 125 [2024-11-22 13:10:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:10:59,109 INFO L225 Difference]: With dead ends: 902 [2024-11-22 13:10:59,109 INFO L226 Difference]: Without dead ends: 597 [2024-11-22 13:10:59,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:10:59,110 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 120 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:10:59,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 997 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:10:59,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-22 13:10:59,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 592. [2024-11-22 13:10:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 531 states have (on average 1.28060263653484) internal successors, (680), 535 states have internal predecessors, (680), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-22 13:10:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 784 transitions. [2024-11-22 13:10:59,153 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 784 transitions. Word has length 125 [2024-11-22 13:10:59,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:10:59,154 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 784 transitions. [2024-11-22 13:10:59,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:10:59,154 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 784 transitions. [2024-11-22 13:10:59,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 13:10:59,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:10:59,155 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:10:59,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 13:10:59,155 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:10:59,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:10:59,155 INFO L85 PathProgramCache]: Analyzing trace with hash 2037440161, now seen corresponding path program 1 times [2024-11-22 13:10:59,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:10:59,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803610044] [2024-11-22 13:10:59,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:10:59,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:10:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:11:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:11:00,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:11:00,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803610044] [2024-11-22 13:11:00,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803610044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:11:00,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:11:00,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-22 13:11:00,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806213231] [2024-11-22 13:11:00,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:11:00,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 13:11:00,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:11:00,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 13:11:00,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-22 13:11:00,251 INFO L87 Difference]: Start difference. First operand 592 states and 784 transitions. Second operand has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:11:01,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:11:01,548 INFO L93 Difference]: Finished difference Result 1579 states and 2082 transitions. [2024-11-22 13:11:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 13:11:01,548 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-22 13:11:01,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:11:01,553 INFO L225 Difference]: With dead ends: 1579 [2024-11-22 13:11:01,553 INFO L226 Difference]: Without dead ends: 990 [2024-11-22 13:11:01,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=707, Unknown=0, NotChecked=0, Total=870 [2024-11-22 13:11:01,555 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 354 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:11:01,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1717 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 13:11:01,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-11-22 13:11:01,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 326. [2024-11-22 13:11:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 295 states have (on average 1.2779661016949153) internal successors, (377), 297 states have internal predecessors, (377), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 13:11:01,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 429 transitions. [2024-11-22 13:11:01,585 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 429 transitions. Word has length 125 [2024-11-22 13:11:01,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:11:01,585 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 429 transitions. [2024-11-22 13:11:01,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:11:01,586 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 429 transitions. [2024-11-22 13:11:01,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-22 13:11:01,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:11:01,586 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:11:01,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 13:11:01,587 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:11:01,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:11:01,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1610679730, now seen corresponding path program 1 times [2024-11-22 13:11:01,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:11:01,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476387655] [2024-11-22 13:11:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:11:01,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:11:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:11:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:11:11,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:11:11,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476387655] [2024-11-22 13:11:11,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476387655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:11:11,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:11:11,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 13:11:11,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217544379] [2024-11-22 13:11:11,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:11:11,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 13:11:11,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:11:11,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 13:11:11,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:11:11,477 INFO L87 Difference]: Start difference. First operand 326 states and 429 transitions. Second operand has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:11:12,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:11:12,508 INFO L93 Difference]: Finished difference Result 827 states and 1084 transitions. [2024-11-22 13:11:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 13:11:12,509 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2024-11-22 13:11:12,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:11:12,511 INFO L225 Difference]: With dead ends: 827 [2024-11-22 13:11:12,511 INFO L226 Difference]: Without dead ends: 504 [2024-11-22 13:11:12,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-22 13:11:12,513 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 187 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 13:11:12,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 984 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 13:11:12,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-22 13:11:12,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 487. [2024-11-22 13:11:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 440 states have (on average 1.2727272727272727) internal successors, (560), 443 states have internal predecessors, (560), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 13:11:12,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 640 transitions. [2024-11-22 13:11:12,553 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 640 transitions. Word has length 127 [2024-11-22 13:11:12,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:11:12,554 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 640 transitions. [2024-11-22 13:11:12,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 13:11:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 640 transitions. [2024-11-22 13:11:12,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 13:11:12,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:11:12,556 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:11:12,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 13:11:12,556 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:11:12,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:11:12,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1418567797, now seen corresponding path program 1 times [2024-11-22 13:11:12,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:11:12,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907488363] [2024-11-22 13:11:12,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:11:12,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:11:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:11:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:11:12,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:11:12,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907488363] [2024-11-22 13:11:12,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907488363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:11:12,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:11:12,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:11:12,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492830609] [2024-11-22 13:11:12,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:11:12,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:11:12,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:11:12,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:11:12,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:11:12,748 INFO L87 Difference]: Start difference. First operand 487 states and 640 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:11:12,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:11:12,929 INFO L93 Difference]: Finished difference Result 979 states and 1289 transitions. [2024-11-22 13:11:12,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:11:12,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 128 [2024-11-22 13:11:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:11:12,932 INFO L225 Difference]: With dead ends: 979 [2024-11-22 13:11:12,932 INFO L226 Difference]: Without dead ends: 495 [2024-11-22 13:11:12,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:11:12,933 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:11:12,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 459 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:11:12,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-22 13:11:12,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2024-11-22 13:11:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 448 states have (on average 1.265625) internal successors, (567), 451 states have internal predecessors, (567), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 13:11:12,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 647 transitions. [2024-11-22 13:11:12,968 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 647 transitions. Word has length 128 [2024-11-22 13:11:12,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:11:12,969 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 647 transitions. [2024-11-22 13:11:12,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:11:12,969 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 647 transitions. [2024-11-22 13:11:12,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 13:11:12,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:11:12,970 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:11:12,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 13:11:12,970 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:11:12,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:11:12,970 INFO L85 PathProgramCache]: Analyzing trace with hash -941430267, now seen corresponding path program 1 times [2024-11-22 13:11:12,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:11:12,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434484650] [2024-11-22 13:11:12,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:11:12,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:11:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:11:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:11:13,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:11:13,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434484650] [2024-11-22 13:11:13,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434484650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:11:13,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:11:13,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:11:13,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639286017] [2024-11-22 13:11:13,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:11:13,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:11:13,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:11:13,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:11:13,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:11:13,265 INFO L87 Difference]: Start difference. First operand 495 states and 647 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:11:13,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:11:13,468 INFO L93 Difference]: Finished difference Result 570 states and 744 transitions. [2024-11-22 13:11:13,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:11:13,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-22 13:11:13,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:11:13,470 INFO L225 Difference]: With dead ends: 570 [2024-11-22 13:11:13,471 INFO L226 Difference]: Without dead ends: 568 [2024-11-22 13:11:13,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:11:13,471 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 98 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 13:11:13,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 679 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 13:11:13,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-22 13:11:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 559. [2024-11-22 13:11:13,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 501 states have (on average 1.2614770459081837) internal successors, (632), 505 states have internal predecessors, (632), 48 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-22 13:11:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 728 transitions. [2024-11-22 13:11:13,515 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 728 transitions. Word has length 129 [2024-11-22 13:11:13,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:11:13,516 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 728 transitions. [2024-11-22 13:11:13,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:11:13,516 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 728 transitions. [2024-11-22 13:11:13,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 13:11:13,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:11:13,517 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:11:13,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 13:11:13,517 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:11:13,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:11:13,517 INFO L85 PathProgramCache]: Analyzing trace with hash -939583225, now seen corresponding path program 1 times [2024-11-22 13:11:13,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:11:13,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583625071] [2024-11-22 13:11:13,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:11:13,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:11:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:11:13,697 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:11:13,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:11:13,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583625071] [2024-11-22 13:11:13,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583625071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:11:13,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:11:13,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:11:13,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890027026] [2024-11-22 13:11:13,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:11:13,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:11:13,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:11:13,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:11:13,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:11:13,698 INFO L87 Difference]: Start difference. First operand 559 states and 728 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:11:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:11:14,092 INFO L93 Difference]: Finished difference Result 1371 states and 1787 transitions. [2024-11-22 13:11:14,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:11:14,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-22 13:11:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:11:14,095 INFO L225 Difference]: With dead ends: 1371 [2024-11-22 13:11:14,096 INFO L226 Difference]: Without dead ends: 860 [2024-11-22 13:11:14,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:11:14,097 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 87 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:11:14,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 683 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:11:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-22 13:11:14,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 695. [2024-11-22 13:11:14,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 620 states have (on average 1.2629032258064516) internal successors, (783), 626 states have internal predecessors, (783), 62 states have call successors, (62), 12 states have call predecessors, (62), 12 states have return successors, (62), 56 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 13:11:14,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 907 transitions. [2024-11-22 13:11:14,157 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 907 transitions. Word has length 129 [2024-11-22 13:11:14,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:11:14,158 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 907 transitions. [2024-11-22 13:11:14,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 13:11:14,158 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 907 transitions. [2024-11-22 13:11:14,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 13:11:14,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:11:14,159 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:11:14,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 13:11:14,159 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:11:14,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:11:14,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1332610235, now seen corresponding path program 1 times [2024-11-22 13:11:14,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:11:14,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222365481] [2024-11-22 13:11:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:11:14,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:11:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:11:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:11:14,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:11:14,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222365481] [2024-11-22 13:11:14,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222365481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:11:14,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:11:14,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 13:11:14,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83134879] [2024-11-22 13:11:14,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:11:14,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 13:11:14,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:11:14,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 13:11:14,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-22 13:11:14,821 INFO L87 Difference]: Start difference. First operand 695 states and 907 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)