./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-53.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 a57c51c3c35fc35fae3b673a01ba8d307f47b0272dfabe8304d0498d3ff6eff6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:08:23,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:08:23,130 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:08:23,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:08:23,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:08:23,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:08:23,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:08:23,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:08:23,166 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:08:23,167 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:08:23,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:08:23,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:08:23,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:08:23,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:08:23,171 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:08:23,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:08:23,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:08:23,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:08:23,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:08:23,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:08:23,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:08:23,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:08:23,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:08:23,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:08:23,178 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:08:23,178 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:08:23,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:08:23,179 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:08:23,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:08:23,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:08:23,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:08:23,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:08:23,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:08:23,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:08:23,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:08:23,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:08:23,181 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:08:23,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:08:23,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:08:23,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:08:23,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:08:23,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:08:23,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a57c51c3c35fc35fae3b673a01ba8d307f47b0272dfabe8304d0498d3ff6eff6 [2024-11-19 01:08:23,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:08:23,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:08:23,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:08:23,472 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:08:23,472 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:08:23,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i [2024-11-19 01:08:24,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:08:25,069 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:08:25,070 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i [2024-11-19 01:08:25,080 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d292e6e9/b3f06b47942c429c9156d04b4028f774/FLAGc9a30f3c3 [2024-11-19 01:08:25,091 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d292e6e9/b3f06b47942c429c9156d04b4028f774 [2024-11-19 01:08:25,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:08:25,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:08:25,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:08:25,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:08:25,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:08:25,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c9ca60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25, skipping insertion in model container [2024-11-19 01:08:25,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:08:25,302 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-53.i[916,929] [2024-11-19 01:08:25,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:08:25,373 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:08:25,388 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-53.i[916,929] [2024-11-19 01:08:25,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:08:25,460 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:08:25,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25 WrapperNode [2024-11-19 01:08:25,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:08:25,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:08:25,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:08:25,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:08:25,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,533 INFO L138 Inliner]: procedures = 30, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 487 [2024-11-19 01:08:25,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:08:25,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:08:25,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:08:25,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:08:25,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,550 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,558 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-19 01:08:25,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:08:25,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:08:25,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:08:25,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:08:25,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (1/1) ... [2024-11-19 01:08:25,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:08:25,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:08:25,638 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) [2024-11-19 01:08:25,645 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 [2024-11-19 01:08:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:08:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-19 01:08:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-19 01:08:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-19 01:08:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 01:08:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-19 01:08:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 01:08:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:08:25,714 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:08:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 01:08:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:08:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:08:25,876 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:08:25,878 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:08:26,518 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-19 01:08:26,518 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:08:26,535 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:08:26,535 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:08:26,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:08:26 BoogieIcfgContainer [2024-11-19 01:08:26,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:08:26,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:08:26,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:08:26,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:08:26,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:08:25" (1/3) ... [2024-11-19 01:08:26,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d7b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:08:26, skipping insertion in model container [2024-11-19 01:08:26,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:08:25" (2/3) ... [2024-11-19 01:08:26,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d7b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:08:26, skipping insertion in model container [2024-11-19 01:08:26,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:08:26" (3/3) ... [2024-11-19 01:08:26,547 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-53.i [2024-11-19 01:08:26,564 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:08:26,564 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:08:26,616 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:08:26,625 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;@2dc5a7fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:08:26,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:08:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 01:08:26,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 01:08:26,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:26,640 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:26,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:26,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:26,645 INFO L85 PathProgramCache]: Analyzing trace with hash 528541446, now seen corresponding path program 1 times [2024-11-19 01:08:26,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:26,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513766289] [2024-11-19 01:08:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:26,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-19 01:08:27,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:27,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513766289] [2024-11-19 01:08:27,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513766289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:08:27,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011759048] [2024-11-19 01:08:27,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:27,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:08:27,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:08:27,065 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) [2024-11-19 01:08:27,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:08:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:27,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:08:27,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:08:27,454 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-19 01:08:27,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:08:27,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011759048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:27,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:08:27,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:08:27,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978243867] [2024-11-19 01:08:27,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:27,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:08:27,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:27,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:08:27,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:08:27,496 INFO L87 Difference]: Start difference. First operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 01:08:27,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:27,526 INFO L93 Difference]: Finished difference Result 217 states and 340 transitions. [2024-11-19 01:08:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:08:27,530 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-19 01:08:27,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:27,538 INFO L225 Difference]: With dead ends: 217 [2024-11-19 01:08:27,538 INFO L226 Difference]: Without dead ends: 108 [2024-11-19 01:08:27,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:08:27,544 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:27,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:08:27,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-19 01:08:27,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-19 01:08:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 88 states have internal predecessors, (119), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 01:08:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2024-11-19 01:08:27,587 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 140 [2024-11-19 01:08:27,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:27,587 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2024-11-19 01:08:27,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 01:08:27,588 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2024-11-19 01:08:27,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 01:08:27,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:27,591 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:27,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 01:08:27,793 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 [2024-11-19 01:08:27,794 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:27,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:27,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1839681894, now seen corresponding path program 1 times [2024-11-19 01:08:27,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:27,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245212540] [2024-11-19 01:08:27,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:27,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:28,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:28,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245212540] [2024-11-19 01:08:28,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245212540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:28,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:28,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:08:28,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729341356] [2024-11-19 01:08:28,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:28,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:08:28,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:28,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:08:28,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:08:28,542 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:08:28,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:28,591 INFO L93 Difference]: Finished difference Result 213 states and 307 transitions. [2024-11-19 01:08:28,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:08:28,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-11-19 01:08:28,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:28,594 INFO L225 Difference]: With dead ends: 213 [2024-11-19 01:08:28,594 INFO L226 Difference]: Without dead ends: 108 [2024-11-19 01:08:28,595 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 [2024-11-19 01:08:28,596 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:28,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 302 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:08:28,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-19 01:08:28,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-19 01:08:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 01:08:28,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-11-19 01:08:28,607 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 140 [2024-11-19 01:08:28,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:28,609 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-11-19 01:08:28,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:08:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-11-19 01:08:28,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 01:08:28,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:28,612 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:28,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:08:28,613 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:28,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:28,614 INFO L85 PathProgramCache]: Analyzing trace with hash 818613540, now seen corresponding path program 1 times [2024-11-19 01:08:28,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:28,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861806031] [2024-11-19 01:08:28,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:28,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:30,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:30,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861806031] [2024-11-19 01:08:30,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861806031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:30,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:30,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:08:30,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032071302] [2024-11-19 01:08:30,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:30,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:08:30,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:30,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:08:30,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:08:30,989 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 01:08:31,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:31,468 INFO L93 Difference]: Finished difference Result 219 states and 311 transitions. [2024-11-19 01:08:31,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:08:31,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-19 01:08:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:31,477 INFO L225 Difference]: With dead ends: 219 [2024-11-19 01:08:31,481 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 01:08:31,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:08:31,483 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 85 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:31,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 404 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:08:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 01:08:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-19 01:08:31,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3225806451612903) internal successors, (123), 93 states have internal predecessors, (123), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 01:08:31,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2024-11-19 01:08:31,510 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 140 [2024-11-19 01:08:31,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:31,512 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2024-11-19 01:08:31,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 01:08:31,512 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2024-11-19 01:08:31,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 01:08:31,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:31,518 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:31,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:08:31,519 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:31,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:31,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1519678118, now seen corresponding path program 1 times [2024-11-19 01:08:31,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:31,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110646019] [2024-11-19 01:08:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:31,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:35,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:35,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110646019] [2024-11-19 01:08:35,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110646019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:35,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:35,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:08:35,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229398960] [2024-11-19 01:08:35,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:35,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:08:35,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:35,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:08:35,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:08:35,156 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:08:36,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:36,025 INFO L93 Difference]: Finished difference Result 336 states and 470 transitions. [2024-11-19 01:08:36,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:08:36,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-11-19 01:08:36,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:36,030 INFO L225 Difference]: With dead ends: 336 [2024-11-19 01:08:36,030 INFO L226 Difference]: Without dead ends: 225 [2024-11-19 01:08:36,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:08:36,034 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 147 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:36,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 475 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 01:08:36,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-19 01:08:36,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 219. [2024-11-19 01:08:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 178 states have (on average 1.3258426966292134) internal successors, (236), 178 states have internal predecessors, (236), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 01:08:36,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 308 transitions. [2024-11-19 01:08:36,070 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 308 transitions. Word has length 140 [2024-11-19 01:08:36,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:36,071 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 308 transitions. [2024-11-19 01:08:36,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:08:36,071 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 308 transitions. [2024-11-19 01:08:36,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 01:08:36,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:36,074 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:36,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:08:36,074 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:36,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:36,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1542625043, now seen corresponding path program 1 times [2024-11-19 01:08:36,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:36,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591875019] [2024-11-19 01:08:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:36,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:39,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:39,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591875019] [2024-11-19 01:08:39,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591875019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:39,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:39,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:08:39,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136256988] [2024-11-19 01:08:39,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:39,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:08:39,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:39,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:08:39,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:08:39,297 INFO L87 Difference]: Start difference. First operand 219 states and 308 transitions. Second operand has 9 states, 6 states have (on average 9.166666666666666) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 01:08:40,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:40,147 INFO L93 Difference]: Finished difference Result 330 states and 463 transitions. [2024-11-19 01:08:40,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:08:40,148 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 9.166666666666666) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 142 [2024-11-19 01:08:40,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:40,150 INFO L225 Difference]: With dead ends: 330 [2024-11-19 01:08:40,151 INFO L226 Difference]: Without dead ends: 219 [2024-11-19 01:08:40,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:08:40,152 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 127 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:40,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 406 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 01:08:40,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-19 01:08:40,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 112. [2024-11-19 01:08:40,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 91 states have (on average 1.3076923076923077) internal successors, (119), 91 states have internal predecessors, (119), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 01:08:40,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 155 transitions. [2024-11-19 01:08:40,173 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 155 transitions. Word has length 142 [2024-11-19 01:08:40,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:40,174 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 155 transitions. [2024-11-19 01:08:40,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 9.166666666666666) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 01:08:40,174 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 155 transitions. [2024-11-19 01:08:40,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 01:08:40,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:40,177 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:40,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:08:40,177 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:40,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:40,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1602478714, now seen corresponding path program 1 times [2024-11-19 01:08:40,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:40,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266850358] [2024-11-19 01:08:40,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:40,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:40,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:40,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266850358] [2024-11-19 01:08:40,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266850358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:40,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:40,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:08:40,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800911142] [2024-11-19 01:08:40,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:40,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:08:40,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:40,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:08:40,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:08:40,453 INFO L87 Difference]: Start difference. First operand 112 states and 155 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:08:40,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:40,474 INFO L93 Difference]: Finished difference Result 221 states and 307 transitions. [2024-11-19 01:08:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:08:40,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-19 01:08:40,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:40,476 INFO L225 Difference]: With dead ends: 221 [2024-11-19 01:08:40,477 INFO L226 Difference]: Without dead ends: 112 [2024-11-19 01:08:40,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:08:40,478 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:40,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 296 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:08:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-19 01:08:40,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-19 01:08:40,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 91 states have (on average 1.2967032967032968) internal successors, (118), 91 states have internal predecessors, (118), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 01:08:40,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 154 transitions. [2024-11-19 01:08:40,495 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 154 transitions. Word has length 145 [2024-11-19 01:08:40,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:40,495 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 154 transitions. [2024-11-19 01:08:40,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:08:40,495 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 154 transitions. [2024-11-19 01:08:40,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 01:08:40,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:40,509 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:40,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:08:40,509 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:40,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:40,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1015672700, now seen corresponding path program 1 times [2024-11-19 01:08:40,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:40,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723351773] [2024-11-19 01:08:40,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:40,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:41,741 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:41,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:41,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723351773] [2024-11-19 01:08:41,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723351773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:41,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:41,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:08:41,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484353404] [2024-11-19 01:08:41,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:41,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:08:41,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:41,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:08:41,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:08:41,744 INFO L87 Difference]: Start difference. First operand 112 states and 154 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:08:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:42,534 INFO L93 Difference]: Finished difference Result 299 states and 409 transitions. [2024-11-19 01:08:42,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:08:42,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-19 01:08:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:42,537 INFO L225 Difference]: With dead ends: 299 [2024-11-19 01:08:42,537 INFO L226 Difference]: Without dead ends: 190 [2024-11-19 01:08:42,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:08:42,538 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 86 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:42,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 970 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:08:42,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-19 01:08:42,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2024-11-19 01:08:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 154 states have (on average 1.2922077922077921) internal successors, (199), 155 states have internal predecessors, (199), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-19 01:08:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 255 transitions. [2024-11-19 01:08:42,567 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 255 transitions. Word has length 145 [2024-11-19 01:08:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:42,568 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 255 transitions. [2024-11-19 01:08:42,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:08:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 255 transitions. [2024-11-19 01:08:42,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 01:08:42,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:42,570 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:42,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:08:42,571 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:42,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2143372836, now seen corresponding path program 1 times [2024-11-19 01:08:42,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:42,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490247368] [2024-11-19 01:08:42,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:42,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:44,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:44,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490247368] [2024-11-19 01:08:44,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490247368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:44,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:44,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:08:44,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906317921] [2024-11-19 01:08:44,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:44,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:08:44,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:44,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:08:44,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:08:44,458 INFO L87 Difference]: Start difference. First operand 187 states and 255 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:08:45,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:45,626 INFO L93 Difference]: Finished difference Result 607 states and 829 transitions. [2024-11-19 01:08:45,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:08:45,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2024-11-19 01:08:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:45,631 INFO L225 Difference]: With dead ends: 607 [2024-11-19 01:08:45,631 INFO L226 Difference]: Without dead ends: 423 [2024-11-19 01:08:45,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:08:45,632 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 178 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:45,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 616 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 01:08:45,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-19 01:08:45,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 416. [2024-11-19 01:08:45,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 348 states have (on average 1.3074712643678161) internal successors, (455), 351 states have internal predecessors, (455), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:08:45,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 571 transitions. [2024-11-19 01:08:45,686 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 571 transitions. Word has length 146 [2024-11-19 01:08:45,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:45,687 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 571 transitions. [2024-11-19 01:08:45,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:08:45,687 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 571 transitions. [2024-11-19 01:08:45,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 01:08:45,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:45,689 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:45,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:08:45,690 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:45,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:45,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1450529882, now seen corresponding path program 1 times [2024-11-19 01:08:45,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:45,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565423232] [2024-11-19 01:08:45,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:45,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:48,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:48,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565423232] [2024-11-19 01:08:48,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565423232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:48,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:48,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:08:48,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529690227] [2024-11-19 01:08:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:48,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:08:48,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:08:48,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:08:48,466 INFO L87 Difference]: Start difference. First operand 416 states and 571 transitions. Second operand has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:08:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:50,058 INFO L93 Difference]: Finished difference Result 874 states and 1195 transitions. [2024-11-19 01:08:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:08:50,059 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2024-11-19 01:08:50,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:50,063 INFO L225 Difference]: With dead ends: 874 [2024-11-19 01:08:50,063 INFO L226 Difference]: Without dead ends: 461 [2024-11-19 01:08:50,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:08:50,066 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 229 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:50,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 632 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 01:08:50,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-19 01:08:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 423. [2024-11-19 01:08:50,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 355 states have (on average 1.3014084507042254) internal successors, (462), 358 states have internal predecessors, (462), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:08:50,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 578 transitions. [2024-11-19 01:08:50,108 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 578 transitions. Word has length 146 [2024-11-19 01:08:50,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:50,108 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 578 transitions. [2024-11-19 01:08:50,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:08:50,109 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 578 transitions. [2024-11-19 01:08:50,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 01:08:50,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:50,110 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:50,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:08:50,111 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:50,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1325724386, now seen corresponding path program 1 times [2024-11-19 01:08:50,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:50,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62013830] [2024-11-19 01:08:50,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:50,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:52,460 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:52,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:52,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62013830] [2024-11-19 01:08:52,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62013830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:52,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:52,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:08:52,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459822436] [2024-11-19 01:08:52,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:52,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:08:52,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:52,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:08:52,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:08:52,464 INFO L87 Difference]: Start difference. First operand 423 states and 578 transitions. Second operand has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:08:54,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:54,053 INFO L93 Difference]: Finished difference Result 882 states and 1203 transitions. [2024-11-19 01:08:54,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:08:54,054 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2024-11-19 01:08:54,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:54,056 INFO L225 Difference]: With dead ends: 882 [2024-11-19 01:08:54,056 INFO L226 Difference]: Without dead ends: 462 [2024-11-19 01:08:54,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:08:54,058 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 159 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:54,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 768 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 01:08:54,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-19 01:08:54,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 424. [2024-11-19 01:08:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 356 states have (on average 1.300561797752809) internal successors, (463), 359 states have internal predecessors, (463), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:08:54,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 579 transitions. [2024-11-19 01:08:54,091 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 579 transitions. Word has length 146 [2024-11-19 01:08:54,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:54,091 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 579 transitions. [2024-11-19 01:08:54,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:08:54,092 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 579 transitions. [2024-11-19 01:08:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 01:08:54,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:54,093 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:54,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:08:54,094 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:54,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:54,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2026788964, now seen corresponding path program 1 times [2024-11-19 01:08:54,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:54,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252362103] [2024-11-19 01:08:54,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:54,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:56,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:56,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252362103] [2024-11-19 01:08:56,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252362103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:56,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:08:56,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:08:56,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218498515] [2024-11-19 01:08:56,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:56,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:08:56,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:56,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:08:56,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:08:56,840 INFO L87 Difference]: Start difference. First operand 424 states and 579 transitions. Second operand has 14 states, 10 states have (on average 5.9) internal successors, (59), 14 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-19 01:08:58,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:58,485 INFO L93 Difference]: Finished difference Result 853 states and 1161 transitions. [2024-11-19 01:08:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 01:08:58,487 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 5.9) internal successors, (59), 14 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2024-11-19 01:08:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:58,490 INFO L225 Difference]: With dead ends: 853 [2024-11-19 01:08:58,491 INFO L226 Difference]: Without dead ends: 432 [2024-11-19 01:08:58,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:08:58,493 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 139 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:58,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1012 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 01:08:58,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-19 01:08:58,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 423. [2024-11-19 01:08:58,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 355 states have (on average 1.2985915492957747) internal successors, (461), 358 states have internal predecessors, (461), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:08:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 577 transitions. [2024-11-19 01:08:58,533 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 577 transitions. Word has length 146 [2024-11-19 01:08:58,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:58,533 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 577 transitions. [2024-11-19 01:08:58,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 5.9) internal successors, (59), 14 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-19 01:08:58,534 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 577 transitions. [2024-11-19 01:08:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 01:08:58,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:58,537 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:58,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:08:58,538 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:58,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:58,538 INFO L85 PathProgramCache]: Analyzing trace with hash -390002472, now seen corresponding path program 1 times [2024-11-19 01:08:58,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:58,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625935722] [2024-11-19 01:08:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:58,739 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 01:08:58,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:58,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625935722] [2024-11-19 01:08:58,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625935722] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:08:58,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287860735] [2024-11-19 01:08:58,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:58,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:08:58,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:08:58,743 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) [2024-11-19 01:08:58,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:08:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:59,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 01:08:59,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:08:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:59,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:08:59,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287860735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:59,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:08:59,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-19 01:08:59,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882599780] [2024-11-19 01:08:59,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:59,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:08:59,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:59,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:08:59,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:08:59,088 INFO L87 Difference]: Start difference. First operand 423 states and 577 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:08:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:59,163 INFO L93 Difference]: Finished difference Result 863 states and 1176 transitions. [2024-11-19 01:08:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:08:59,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-19 01:08:59,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:59,167 INFO L225 Difference]: With dead ends: 863 [2024-11-19 01:08:59,169 INFO L226 Difference]: Without dead ends: 443 [2024-11-19 01:08:59,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:08:59,171 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:59,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 725 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:08:59,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-19 01:08:59,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 437. [2024-11-19 01:08:59,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 369 states have (on average 1.2872628726287263) internal successors, (475), 372 states have internal predecessors, (475), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:08:59,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 591 transitions. [2024-11-19 01:08:59,207 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 591 transitions. Word has length 147 [2024-11-19 01:08:59,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:08:59,207 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 591 transitions. [2024-11-19 01:08:59,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:08:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 591 transitions. [2024-11-19 01:08:59,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 01:08:59,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:08:59,210 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:08:59,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 01:08:59,411 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,SelfDestructingSolverStorable11 [2024-11-19 01:08:59,411 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:08:59,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:08:59,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1451337970, now seen corresponding path program 1 times [2024-11-19 01:08:59,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:08:59,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478987140] [2024-11-19 01:08:59,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:59,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:08:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:59,604 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 01:08:59,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:08:59,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478987140] [2024-11-19 01:08:59,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478987140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:08:59,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333783250] [2024-11-19 01:08:59,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:08:59,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:08:59,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:08:59,609 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) [2024-11-19 01:08:59,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 01:08:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:08:59,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 01:08:59,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:08:59,927 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:08:59,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:08:59,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333783250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:08:59,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:08:59,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-19 01:08:59,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076552257] [2024-11-19 01:08:59,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:08:59,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:08:59,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:08:59,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:08:59,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:08:59,932 INFO L87 Difference]: Start difference. First operand 437 states and 591 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:08:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:08:59,982 INFO L93 Difference]: Finished difference Result 886 states and 1199 transitions. [2024-11-19 01:08:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:08:59,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-19 01:08:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:08:59,985 INFO L225 Difference]: With dead ends: 886 [2024-11-19 01:08:59,985 INFO L226 Difference]: Without dead ends: 452 [2024-11-19 01:08:59,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:08:59,988 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:08:59,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 576 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:08:59,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-19 01:09:00,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-19 01:09:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 384 states have (on average 1.2760416666666667) internal successors, (490), 387 states have internal predecessors, (490), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:09:00,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 606 transitions. [2024-11-19 01:09:00,020 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 606 transitions. Word has length 147 [2024-11-19 01:09:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:00,020 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 606 transitions. [2024-11-19 01:09:00,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 606 transitions. [2024-11-19 01:09:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 01:09:00,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:00,022 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:00,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 01:09:00,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:00,223 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:00,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:00,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1207686357, now seen corresponding path program 1 times [2024-11-19 01:09:00,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:00,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561260893] [2024-11-19 01:09:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:00,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:03,227 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:03,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:03,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561260893] [2024-11-19 01:09:03,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561260893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:03,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:03,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 01:09:03,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726788687] [2024-11-19 01:09:03,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:03,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 01:09:03,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:03,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 01:09:03,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:09:03,230 INFO L87 Difference]: Start difference. First operand 452 states and 606 transitions. Second operand has 16 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 01:09:05,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:05,242 INFO L93 Difference]: Finished difference Result 708 states and 948 transitions. [2024-11-19 01:09:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 01:09:05,244 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2024-11-19 01:09:05,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:05,247 INFO L225 Difference]: With dead ends: 708 [2024-11-19 01:09:05,247 INFO L226 Difference]: Without dead ends: 513 [2024-11-19 01:09:05,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2024-11-19 01:09:05,248 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 285 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:05,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 889 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 01:09:05,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-19 01:09:05,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 508. [2024-11-19 01:09:05,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 437 states have (on average 1.2814645308924486) internal successors, (560), 441 states have internal predecessors, (560), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 01:09:05,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 680 transitions. [2024-11-19 01:09:05,281 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 680 transitions. Word has length 148 [2024-11-19 01:09:05,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:05,282 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 680 transitions. [2024-11-19 01:09:05,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 01:09:05,282 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 680 transitions. [2024-11-19 01:09:05,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 01:09:05,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:05,284 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:05,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:09:05,284 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:05,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:05,284 INFO L85 PathProgramCache]: Analyzing trace with hash -506621779, now seen corresponding path program 1 times [2024-11-19 01:09:05,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:05,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187544124] [2024-11-19 01:09:05,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:05,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:07,120 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:07,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:07,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187544124] [2024-11-19 01:09:07,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187544124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:07,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:07,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:09:07,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888726195] [2024-11-19 01:09:07,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:07,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:09:07,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:07,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:09:07,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:09:07,122 INFO L87 Difference]: Start difference. First operand 508 states and 680 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 01:09:07,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:07,880 INFO L93 Difference]: Finished difference Result 841 states and 1122 transitions. [2024-11-19 01:09:07,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:09:07,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2024-11-19 01:09:07,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:07,886 INFO L225 Difference]: With dead ends: 841 [2024-11-19 01:09:07,886 INFO L226 Difference]: Without dead ends: 590 [2024-11-19 01:09:07,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:07,889 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 51 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:07,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 813 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:09:07,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-19 01:09:07,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 515. [2024-11-19 01:09:07,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 444 states have (on average 1.277027027027027) internal successors, (567), 448 states have internal predecessors, (567), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 01:09:07,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 687 transitions. [2024-11-19 01:09:07,925 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 687 transitions. Word has length 148 [2024-11-19 01:09:07,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:07,925 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 687 transitions. [2024-11-19 01:09:07,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 01:09:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 687 transitions. [2024-11-19 01:09:07,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 01:09:07,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:07,927 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:07,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 01:09:07,928 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:07,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:07,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2025334807, now seen corresponding path program 1 times [2024-11-19 01:09:07,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:07,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141272107] [2024-11-19 01:09:07,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:07,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:08,980 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:08,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:08,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141272107] [2024-11-19 01:09:08,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141272107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:08,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:08,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:09:08,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626244870] [2024-11-19 01:09:08,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:08,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:08,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:08,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:08,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:08,983 INFO L87 Difference]: Start difference. First operand 515 states and 687 transitions. Second operand has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:09:09,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:09,652 INFO L93 Difference]: Finished difference Result 1099 states and 1464 transitions. [2024-11-19 01:09:09,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:09:09,653 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-19 01:09:09,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:09,656 INFO L225 Difference]: With dead ends: 1099 [2024-11-19 01:09:09,657 INFO L226 Difference]: Without dead ends: 587 [2024-11-19 01:09:09,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:09,659 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 47 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:09,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 709 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:09:09,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-19 01:09:09,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 515. [2024-11-19 01:09:09,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 444 states have (on average 1.268018018018018) internal successors, (563), 448 states have internal predecessors, (563), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 01:09:09,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 683 transitions. [2024-11-19 01:09:09,694 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 683 transitions. Word has length 148 [2024-11-19 01:09:09,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:09,695 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 683 transitions. [2024-11-19 01:09:09,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:09:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 683 transitions. [2024-11-19 01:09:09,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 01:09:09,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:09,697 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:09,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 01:09:09,697 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:09,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:09,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1324270229, now seen corresponding path program 1 times [2024-11-19 01:09:09,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:09,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74071066] [2024-11-19 01:09:09,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:09,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:11,492 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:11,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:11,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74071066] [2024-11-19 01:09:11,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74071066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:11,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:11,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 01:09:11,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59200992] [2024-11-19 01:09:11,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:11,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:09:11,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:11,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:09:11,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:09:11,494 INFO L87 Difference]: Start difference. First operand 515 states and 683 transitions. Second operand has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:09:12,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:12,902 INFO L93 Difference]: Finished difference Result 777 states and 1028 transitions. [2024-11-19 01:09:12,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:09:12,903 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-19 01:09:12,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:12,905 INFO L225 Difference]: With dead ends: 777 [2024-11-19 01:09:12,905 INFO L226 Difference]: Without dead ends: 519 [2024-11-19 01:09:12,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:09:12,908 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 180 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:12,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 892 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 01:09:12,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-19 01:09:12,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 261. [2024-11-19 01:09:12,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 225 states have (on average 1.2622222222222221) internal successors, (284), 227 states have internal predecessors, (284), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:09:12,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 344 transitions. [2024-11-19 01:09:12,928 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 344 transitions. Word has length 148 [2024-11-19 01:09:12,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:12,928 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 344 transitions. [2024-11-19 01:09:12,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:09:12,929 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 344 transitions. [2024-11-19 01:09:12,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 01:09:12,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:12,930 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:12,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 01:09:12,930 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:12,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:12,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2068856573, now seen corresponding path program 1 times [2024-11-19 01:09:12,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:12,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257857511] [2024-11-19 01:09:12,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 01:09:13,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:13,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257857511] [2024-11-19 01:09:13,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257857511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:09:13,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472239860] [2024-11-19 01:09:13,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:13,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:13,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:13,203 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) [2024-11-19 01:09:13,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 01:09:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:13,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 01:09:13,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:13,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:09:13,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472239860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:13,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:09:13,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-11-19 01:09:13,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124990680] [2024-11-19 01:09:13,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:13,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:13,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:13,585 INFO L87 Difference]: Start difference. First operand 261 states and 344 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:13,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:13,647 INFO L93 Difference]: Finished difference Result 537 states and 706 transitions. [2024-11-19 01:09:13,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:09:13,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-19 01:09:13,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:13,650 INFO L225 Difference]: With dead ends: 537 [2024-11-19 01:09:13,650 INFO L226 Difference]: Without dead ends: 279 [2024-11-19 01:09:13,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:13,652 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:13,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 865 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:13,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-19 01:09:13,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 264. [2024-11-19 01:09:13,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 228 states have (on average 1.2587719298245614) internal successors, (287), 230 states have internal predecessors, (287), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:09:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 347 transitions. [2024-11-19 01:09:13,679 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 347 transitions. Word has length 149 [2024-11-19 01:09:13,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:13,680 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 347 transitions. [2024-11-19 01:09:13,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 347 transitions. [2024-11-19 01:09:13,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 01:09:13,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:13,681 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:13,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 01:09:13,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 01:09:13,882 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:13,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:13,883 INFO L85 PathProgramCache]: Analyzing trace with hash -621698327, now seen corresponding path program 1 times [2024-11-19 01:09:13,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:13,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515081076] [2024-11-19 01:09:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:15,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:15,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515081076] [2024-11-19 01:09:15,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515081076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:15,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:15,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:09:15,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065805929] [2024-11-19 01:09:15,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:15,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:09:15,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:15,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:09:15,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:15,353 INFO L87 Difference]: Start difference. First operand 264 states and 347 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 01:09:15,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:15,840 INFO L93 Difference]: Finished difference Result 515 states and 672 transitions. [2024-11-19 01:09:15,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:09:15,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2024-11-19 01:09:15,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:15,844 INFO L225 Difference]: With dead ends: 515 [2024-11-19 01:09:15,844 INFO L226 Difference]: Without dead ends: 513 [2024-11-19 01:09:15,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:15,845 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 88 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:15,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 897 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:09:15,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-19 01:09:15,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 387. [2024-11-19 01:09:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 348 states have (on average 1.2614942528735633) internal successors, (439), 351 states have internal predecessors, (439), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-19 01:09:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 503 transitions. [2024-11-19 01:09:15,869 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 503 transitions. Word has length 149 [2024-11-19 01:09:15,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:15,869 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 503 transitions. [2024-11-19 01:09:15,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 01:09:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 503 transitions. [2024-11-19 01:09:15,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 01:09:15,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:15,871 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:15,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 01:09:15,871 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:15,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:15,871 INFO L85 PathProgramCache]: Analyzing trace with hash 256648277, now seen corresponding path program 1 times [2024-11-19 01:09:15,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:15,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670899512] [2024-11-19 01:09:15,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:15,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:17,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:17,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670899512] [2024-11-19 01:09:17,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670899512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:17,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:17,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:09:17,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675990581] [2024-11-19 01:09:17,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:17,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:09:17,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:17,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:09:17,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:17,374 INFO L87 Difference]: Start difference. First operand 387 states and 503 transitions. Second operand has 8 states, 5 states have (on average 12.4) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 01:09:17,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:17,920 INFO L93 Difference]: Finished difference Result 1061 states and 1374 transitions. [2024-11-19 01:09:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:09:17,921 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 12.4) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 149 [2024-11-19 01:09:17,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:17,924 INFO L225 Difference]: With dead ends: 1061 [2024-11-19 01:09:17,924 INFO L226 Difference]: Without dead ends: 677 [2024-11-19 01:09:17,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:09:17,926 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 54 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:17,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 639 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:09:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-19 01:09:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 541. [2024-11-19 01:09:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 502 states have (on average 1.2749003984063745) internal successors, (640), 505 states have internal predecessors, (640), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-19 01:09:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 704 transitions. [2024-11-19 01:09:17,963 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 704 transitions. Word has length 149 [2024-11-19 01:09:17,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:17,964 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 704 transitions. [2024-11-19 01:09:17,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 12.4) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-19 01:09:17,964 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 704 transitions. [2024-11-19 01:09:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 01:09:17,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:17,966 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:17,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 01:09:17,966 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:17,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:17,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1072057838, now seen corresponding path program 1 times [2024-11-19 01:09:17,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:17,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918340889] [2024-11-19 01:09:17,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:17,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:19,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:19,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918340889] [2024-11-19 01:09:19,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918340889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:19,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:19,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-19 01:09:19,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65737138] [2024-11-19 01:09:19,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:19,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 01:09:19,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:19,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 01:09:19,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:09:19,785 INFO L87 Difference]: Start difference. First operand 541 states and 704 transitions. Second operand has 18 states, 16 states have (on average 4.0) internal successors, (64), 18 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:09:21,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:21,900 INFO L93 Difference]: Finished difference Result 1298 states and 1688 transitions. [2024-11-19 01:09:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-19 01:09:21,901 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.0) internal successors, (64), 18 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-19 01:09:21,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:21,904 INFO L225 Difference]: With dead ends: 1298 [2024-11-19 01:09:21,905 INFO L226 Difference]: Without dead ends: 760 [2024-11-19 01:09:21,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=1062, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 01:09:21,907 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 218 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 2193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:21,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 2278 Invalid, 2193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-19 01:09:21,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-11-19 01:09:21,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 687. [2024-11-19 01:09:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 618 states have (on average 1.2718446601941749) internal successors, (786), 623 states have internal predecessors, (786), 56 states have call successors, (56), 12 states have call predecessors, (56), 12 states have return successors, (56), 51 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-19 01:09:21,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 898 transitions. [2024-11-19 01:09:21,964 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 898 transitions. Word has length 151 [2024-11-19 01:09:21,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:21,964 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 898 transitions. [2024-11-19 01:09:21,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.0) internal successors, (64), 18 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 01:09:21,964 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 898 transitions. [2024-11-19 01:09:21,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 01:09:21,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:21,966 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:21,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 01:09:21,966 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:21,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:21,967 INFO L85 PathProgramCache]: Analyzing trace with hash -906512689, now seen corresponding path program 1 times [2024-11-19 01:09:21,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:21,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608693386] [2024-11-19 01:09:21,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:21,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 01:09:23,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:23,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608693386] [2024-11-19 01:09:23,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608693386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:09:23,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419771651] [2024-11-19 01:09:23,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:23,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:23,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:23,654 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:09:23,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 01:09:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:24,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-19 01:09:24,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:24,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 25 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2024-11-19 01:09:24,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:24,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 51 [2024-11-19 01:09:24,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2024-11-19 01:09:24,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:24,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 68 [2024-11-19 01:09:24,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:24,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 68 [2024-11-19 01:09:25,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:25,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 68 [2024-11-19 01:09:25,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:25,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 68 [2024-11-19 01:09:25,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:25,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 68 [2024-11-19 01:09:25,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:25,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 61 [2024-11-19 01:09:25,793 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:25,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 51 [2024-11-19 01:09:25,957 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:25,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 41 [2024-11-19 01:09:26,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:26,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 52 [2024-11-19 01:09:26,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 54 [2024-11-19 01:09:26,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 94 [2024-11-19 01:09:26,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 55 [2024-11-19 01:09:26,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:26,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 105 treesize of output 77 [2024-11-19 01:09:26,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:26,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 48 [2024-11-19 01:09:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 98 proven. 384 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-19 01:09:26,614 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:09:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 84 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-19 01:09:27,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419771651] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:09:27,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:09:27,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18, 10] total 36 [2024-11-19 01:09:27,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197504148] [2024-11-19 01:09:27,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:09:27,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-19 01:09:27,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:27,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-19 01:09:27,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1040, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 01:09:27,132 INFO L87 Difference]: Start difference. First operand 687 states and 898 transitions. Second operand has 36 states, 31 states have (on average 5.516129032258065) internal successors, (171), 35 states have internal predecessors, (171), 14 states have call successors, (54), 7 states have call predecessors, (54), 10 states have return successors, (54), 10 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-19 01:09:30,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:30,243 INFO L93 Difference]: Finished difference Result 2242 states and 2895 transitions. [2024-11-19 01:09:30,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-19 01:09:30,243 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 31 states have (on average 5.516129032258065) internal successors, (171), 35 states have internal predecessors, (171), 14 states have call successors, (54), 7 states have call predecessors, (54), 10 states have return successors, (54), 10 states have call predecessors, (54), 14 states have call successors, (54) Word has length 151 [2024-11-19 01:09:30,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:30,250 INFO L225 Difference]: With dead ends: 2242 [2024-11-19 01:09:30,250 INFO L226 Difference]: Without dead ends: 1558 [2024-11-19 01:09:30,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1473 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=815, Invalid=4441, Unknown=0, NotChecked=0, Total=5256 [2024-11-19 01:09:30,253 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 552 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:30,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1139 Invalid, 2433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 2331 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 01:09:30,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2024-11-19 01:09:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1212. [2024-11-19 01:09:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1073 states have (on average 1.2590866728797763) internal successors, (1351), 1082 states have internal predecessors, (1351), 106 states have call successors, (106), 32 states have call predecessors, (106), 32 states have return successors, (106), 97 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-19 01:09:30,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1563 transitions. [2024-11-19 01:09:30,347 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1563 transitions. Word has length 151 [2024-11-19 01:09:30,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:30,347 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1563 transitions. [2024-11-19 01:09:30,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 31 states have (on average 5.516129032258065) internal successors, (171), 35 states have internal predecessors, (171), 14 states have call successors, (54), 7 states have call predecessors, (54), 10 states have return successors, (54), 10 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-19 01:09:30,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1563 transitions. [2024-11-19 01:09:30,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 01:09:30,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:30,349 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:30,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 01:09:30,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-19 01:09:30,550 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:30,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:30,550 INFO L85 PathProgramCache]: Analyzing trace with hash 303152595, now seen corresponding path program 1 times [2024-11-19 01:09:30,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:30,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317311799] [2024-11-19 01:09:30,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:30,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat