./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-83.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-sp_file-83.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 a710c8a85a9b8babc674eadb463f38727995c780b4aae16a0530660db602c87a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:22:09,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:22:09,182 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:22:09,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:22:09,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:22:09,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:22:09,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:22:09,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:22:09,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:22:09,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:22:09,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:22:09,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:22:09,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:22:09,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:22:09,217 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:22:09,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:22:09,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:22:09,218 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:22:09,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:22:09,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:22:09,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:22:09,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:22:09,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:22:09,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:22:09,220 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:22:09,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:22:09,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:22:09,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:22:09,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:22:09,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:22:09,222 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:22:09,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:22:09,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:22:09,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:22:09,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:22:09,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:22:09,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:22:09,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:22:09,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:22:09,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:22:09,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:22:09,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:22:09,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a710c8a85a9b8babc674eadb463f38727995c780b4aae16a0530660db602c87a [2024-11-19 01:22:09,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:22:09,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:22:09,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:22:09,565 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:22:09,566 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:22:09,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-83.i [2024-11-19 01:22:11,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:22:11,742 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:22:11,743 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-83.i [2024-11-19 01:22:11,750 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/068d1dd68/77d493a785a4451885a79190e10dd061/FLAG4a3a4d035 [2024-11-19 01:22:11,761 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/068d1dd68/77d493a785a4451885a79190e10dd061 [2024-11-19 01:22:11,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:22:11,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:22:11,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:22:11,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:22:11,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:22:11,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:22:11" (1/1) ... [2024-11-19 01:22:11,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5894f40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:11, skipping insertion in model container [2024-11-19 01:22:11,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:22:11" (1/1) ... [2024-11-19 01:22:11,804 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:22:11,959 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-sp_file-83.i[917,930] [2024-11-19 01:22:12,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:22:12,035 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:22:12,045 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-sp_file-83.i[917,930] [2024-11-19 01:22:12,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:22:12,194 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:22:12,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12 WrapperNode [2024-11-19 01:22:12,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:22:12,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:22:12,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:22:12,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:22:12,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,251 INFO L138 Inliner]: procedures = 30, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 524 [2024-11-19 01:22:12,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:22:12,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:22:12,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:22:12,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:22:12,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,271 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,282 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-19 01:22:12,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,299 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:22:12,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:22:12,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:22:12,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:22:12,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (1/1) ... [2024-11-19 01:22:12,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:22:12,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:22:12,369 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 01:22:12,372 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 01:22:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:22:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-19 01:22:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-19 01:22:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-19 01:22:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 01:22:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-19 01:22:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 01:22:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:22:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:22:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 01:22:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:22:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:22:12,534 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:22:12,536 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:22:13,112 INFO L? ?]: Removed 139 outVars from TransFormulas that were not future-live. [2024-11-19 01:22:13,112 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:22:13,129 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:22:13,129 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:22:13,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:22:13 BoogieIcfgContainer [2024-11-19 01:22:13,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:22:13,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:22:13,132 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:22:13,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:22:13,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:22:11" (1/3) ... [2024-11-19 01:22:13,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ad69fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:22:13, skipping insertion in model container [2024-11-19 01:22:13,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:12" (2/3) ... [2024-11-19 01:22:13,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ad69fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:22:13, skipping insertion in model container [2024-11-19 01:22:13,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:22:13" (3/3) ... [2024-11-19 01:22:13,137 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-83.i [2024-11-19 01:22:13,150 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:22:13,151 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:22:13,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:22:13,211 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;@3ca065b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:22:13,211 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:22:13,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 98 states have (on average 1.469387755102041) internal successors, (144), 99 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 01:22:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 01:22:13,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:13,233 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:13,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:13,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:13,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1804544545, now seen corresponding path program 1 times [2024-11-19 01:22:13,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:13,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258514595] [2024-11-19 01:22:13,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:13,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:13,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:13,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258514595] [2024-11-19 01:22:13,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258514595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:13,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:13,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:22:13,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850908852] [2024-11-19 01:22:13,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:13,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:22:13,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:13,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:22:13,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:22:13,836 INFO L87 Difference]: Start difference. First operand has 112 states, 98 states have (on average 1.469387755102041) internal successors, (144), 99 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:13,901 INFO L93 Difference]: Finished difference Result 220 states and 341 transitions. [2024-11-19 01:22:13,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:22:13,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-19 01:22:13,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:13,911 INFO L225 Difference]: With dead ends: 220 [2024-11-19 01:22:13,912 INFO L226 Difference]: Without dead ends: 111 [2024-11-19 01:22:13,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:22:13,917 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:13,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:22:13,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-19 01:22:13,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-19 01:22:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 97 states have internal predecessors, (133), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 01:22:13,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 155 transitions. [2024-11-19 01:22:13,960 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 155 transitions. Word has length 106 [2024-11-19 01:22:13,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:13,962 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 155 transitions. [2024-11-19 01:22:13,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:13,963 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 155 transitions. [2024-11-19 01:22:13,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 01:22:13,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:13,966 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:13,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:22:13,967 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:13,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:13,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1810364381, now seen corresponding path program 1 times [2024-11-19 01:22:13,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:13,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348800073] [2024-11-19 01:22:13,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:13,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:14,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:14,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348800073] [2024-11-19 01:22:14,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348800073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:14,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:14,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:22:14,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863546508] [2024-11-19 01:22:14,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:14,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:22:14,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:14,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:22:14,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:22:14,293 INFO L87 Difference]: Start difference. First operand 110 states and 155 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:14,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:14,325 INFO L93 Difference]: Finished difference Result 220 states and 311 transitions. [2024-11-19 01:22:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:22:14,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-19 01:22:14,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:14,327 INFO L225 Difference]: With dead ends: 220 [2024-11-19 01:22:14,328 INFO L226 Difference]: Without dead ends: 113 [2024-11-19 01:22:14,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:22:14,329 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:14,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 440 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:22:14,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-19 01:22:14,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2024-11-19 01:22:14,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 99 states have internal predecessors, (135), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 01:22:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 157 transitions. [2024-11-19 01:22:14,345 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 157 transitions. Word has length 106 [2024-11-19 01:22:14,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:14,346 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 157 transitions. [2024-11-19 01:22:14,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:14,346 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 157 transitions. [2024-11-19 01:22:14,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 01:22:14,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:14,355 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:14,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:22:14,356 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:14,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:14,356 INFO L85 PathProgramCache]: Analyzing trace with hash -35357019, now seen corresponding path program 1 times [2024-11-19 01:22:14,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:14,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263035849] [2024-11-19 01:22:14,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:14,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:14,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:14,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263035849] [2024-11-19 01:22:14,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263035849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:14,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:14,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:22:14,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535905506] [2024-11-19 01:22:14,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:14,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:22:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:14,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:22:14,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:22:14,525 INFO L87 Difference]: Start difference. First operand 112 states and 157 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:14,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:14,556 INFO L93 Difference]: Finished difference Result 224 states and 315 transitions. [2024-11-19 01:22:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:22:14,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-19 01:22:14,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:14,560 INFO L225 Difference]: With dead ends: 224 [2024-11-19 01:22:14,561 INFO L226 Difference]: Without dead ends: 115 [2024-11-19 01:22:14,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:22:14,563 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:14,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 442 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:22:14,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-19 01:22:14,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2024-11-19 01:22:14,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 101 states have internal predecessors, (137), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 01:22:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2024-11-19 01:22:14,577 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 106 [2024-11-19 01:22:14,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:14,578 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2024-11-19 01:22:14,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:14,578 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2024-11-19 01:22:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 01:22:14,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:14,582 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:14,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:22:14,583 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:14,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash -33509977, now seen corresponding path program 1 times [2024-11-19 01:22:14,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:14,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389752152] [2024-11-19 01:22:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:14,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:15,635 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:15,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:15,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389752152] [2024-11-19 01:22:15,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389752152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:15,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:15,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:22:15,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297114984] [2024-11-19 01:22:15,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:15,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:22:15,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:15,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:22:15,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:22:15,642 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:22:16,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:16,080 INFO L93 Difference]: Finished difference Result 225 states and 315 transitions. [2024-11-19 01:22:16,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:22:16,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-19 01:22:16,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:16,082 INFO L225 Difference]: With dead ends: 225 [2024-11-19 01:22:16,082 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 01:22:16,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:22:16,088 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 146 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:16,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 320 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:22:16,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 01:22:16,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-19 01:22:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 101 states have internal predecessors, (136), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 01:22:16,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 158 transitions. [2024-11-19 01:22:16,109 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 158 transitions. Word has length 106 [2024-11-19 01:22:16,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:16,109 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 158 transitions. [2024-11-19 01:22:16,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:22:16,110 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 158 transitions. [2024-11-19 01:22:16,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-19 01:22:16,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:16,111 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:16,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:22:16,111 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:16,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:16,112 INFO L85 PathProgramCache]: Analyzing trace with hash 895739275, now seen corresponding path program 1 times [2024-11-19 01:22:16,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:16,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382059103] [2024-11-19 01:22:16,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:16,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:16,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:16,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382059103] [2024-11-19 01:22:16,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382059103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:16,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:16,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:22:16,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854554607] [2024-11-19 01:22:16,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:16,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:22:16,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:16,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:22:16,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:22:16,330 INFO L87 Difference]: Start difference. First operand 114 states and 158 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:16,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:16,529 INFO L93 Difference]: Finished difference Result 227 states and 316 transitions. [2024-11-19 01:22:16,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:22:16,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-19 01:22:16,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:16,531 INFO L225 Difference]: With dead ends: 227 [2024-11-19 01:22:16,531 INFO L226 Difference]: Without dead ends: 116 [2024-11-19 01:22:16,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:22:16,532 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 3 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:16,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 481 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:22:16,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-19 01:22:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-19 01:22:16,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 103 states have internal predecessors, (138), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 01:22:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 160 transitions. [2024-11-19 01:22:16,549 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 160 transitions. Word has length 107 [2024-11-19 01:22:16,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:16,549 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 160 transitions. [2024-11-19 01:22:16,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 160 transitions. [2024-11-19 01:22:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 01:22:16,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:16,551 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:16,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:22:16,551 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:16,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:16,551 INFO L85 PathProgramCache]: Analyzing trace with hash 85606593, now seen corresponding path program 1 times [2024-11-19 01:22:16,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:16,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765135428] [2024-11-19 01:22:16,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:16,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:19,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:19,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765135428] [2024-11-19 01:22:19,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765135428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:19,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:19,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 01:22:19,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313523948] [2024-11-19 01:22:19,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:19,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:22:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:19,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:22:19,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:22:19,023 INFO L87 Difference]: Start difference. First operand 116 states and 160 transitions. Second operand has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 01:22:19,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:19,790 INFO L93 Difference]: Finished difference Result 298 states and 411 transitions. [2024-11-19 01:22:19,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:22:19,790 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 108 [2024-11-19 01:22:19,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:19,791 INFO L225 Difference]: With dead ends: 298 [2024-11-19 01:22:19,791 INFO L226 Difference]: Without dead ends: 185 [2024-11-19 01:22:19,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:22:19,792 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 475 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:19,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 636 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:22:19,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-19 01:22:19,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 137. [2024-11-19 01:22:19,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 124 states have (on average 1.3548387096774193) internal successors, (168), 124 states have internal predecessors, (168), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 01:22:19,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 190 transitions. [2024-11-19 01:22:19,803 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 190 transitions. Word has length 108 [2024-11-19 01:22:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:19,803 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 190 transitions. [2024-11-19 01:22:19,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 01:22:19,804 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 190 transitions. [2024-11-19 01:22:19,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 01:22:19,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:19,805 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:19,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:22:19,805 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:19,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:19,805 INFO L85 PathProgramCache]: Analyzing trace with hash -935461761, now seen corresponding path program 1 times [2024-11-19 01:22:19,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:19,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140234595] [2024-11-19 01:22:19,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:19,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:22:19,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340103007] [2024-11-19 01:22:19,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:19,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:22:19,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:22:19,903 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 01:22:19,904 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 01:22:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:20,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 93 conjuncts are in the unsatisfiable core [2024-11-19 01:22:20,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:22:20,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 42 [2024-11-19 01:22:20,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 58 [2024-11-19 01:22:21,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:22:21,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:22:22,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-19 01:22:23,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-19 01:22:24,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-19 01:22:24,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:24,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:24,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:25,026 INFO L349 Elim1Store]: treesize reduction 266, result has 26.3 percent of original size [2024-11-19 01:22:25,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 169 [2024-11-19 01:22:25,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:25,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:25,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:22:25,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2024-11-19 01:22:25,465 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-19 01:22:25,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 131 [2024-11-19 01:22:25,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:25,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:25,915 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2024-11-19 01:22:25,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 45 [2024-11-19 01:22:25,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:25,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:25,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:25,967 INFO L349 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2024-11-19 01:22:25,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 60 [2024-11-19 01:22:26,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,063 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2024-11-19 01:22:26,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 45 [2024-11-19 01:22:26,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,120 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2024-11-19 01:22:26,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 45 [2024-11-19 01:22:26,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:22:26,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2024-11-19 01:22:26,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:22:26,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2024-11-19 01:22:26,374 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 49 treesize of output 33 [2024-11-19 01:22:26,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:26,387 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 01:22:26,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2024-11-19 01:22:27,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:27,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2024-11-19 01:22:27,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:27,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:27,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:27,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:27,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:27,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2024-11-19 01:22:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 68 proven. 78 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-19 01:22:27,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:22:33,174 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_676 Int) (v_ArrVal_670 Int) (~WrapperStruct00_var_1_16_Pointer~0.base Int) (~WrapperStruct00_var_1_16_Pointer~0.offset Int) (v_ArrVal_672 (Array Int Int)) (v_ArrVal_668 Int)) (let ((.cse0 (let ((.cse2 (let ((.cse4 (select |c_#memory_int| c_~WrapperStruct00_var_1_14_Pointer~0.base))) (let ((.cse3 (let ((.cse5 (store |c_#memory_int| c_~WrapperStruct00_var_1_14_Pointer~0.base (store .cse4 c_~WrapperStruct00_var_1_14_Pointer~0.offset 200)))) (store (select .cse5 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select (select .cse5 ~WrapperStruct00_var_1_16_Pointer~0.base) ~WrapperStruct00_var_1_16_Pointer~0.offset))))) (store (store (store |c_#memory_int| c_~WrapperStruct00_var_1_14_Pointer~0.base v_ArrVal_672) c_~WrapperStruct00_var_1_15_Pointer~0.base .cse3) c_~WrapperStruct00_var_1_17_Pointer~0.base (store (select (store (store |c_#memory_int| c_~WrapperStruct00_var_1_14_Pointer~0.base (store .cse4 c_~WrapperStruct00_var_1_14_Pointer~0.offset v_ArrVal_668)) c_~WrapperStruct00_var_1_15_Pointer~0.base .cse3) c_~WrapperStruct00_var_1_17_Pointer~0.base) c_~WrapperStruct00_var_1_17_Pointer~0.offset v_ArrVal_670)))))) (store .cse2 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (mod (select (select .cse2 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)))))) (or (not (= (select (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) 0)) (let ((.cse1 (store .cse0 c_~WrapperStruct00_var_1_8_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset v_ArrVal_676)))) (< (* (select (select .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) (mod c_~last_1_WrapperStruct00_var_1_1~0 65536)) (+ (div (mod (select (select .cse1 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 65536) (mod (select (select .cse1 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)) 1)))))) is different from false [2024-11-19 01:22:33,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:33,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140234595] [2024-11-19 01:22:33,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:22:33,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340103007] [2024-11-19 01:22:33,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340103007] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:22:33,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:22:33,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-19 01:22:33,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829215612] [2024-11-19 01:22:33,269 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 01:22:33,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 01:22:33,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:33,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 01:22:33,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=426, Unknown=5, NotChecked=42, Total=552 [2024-11-19 01:22:33,272 INFO L87 Difference]: Start difference. First operand 137 states and 190 transitions. Second operand has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 01:22:35,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:35,643 INFO L93 Difference]: Finished difference Result 570 states and 782 transitions. [2024-11-19 01:22:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 01:22:35,643 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 108 [2024-11-19 01:22:35,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:35,645 INFO L225 Difference]: With dead ends: 570 [2024-11-19 01:22:35,645 INFO L226 Difference]: Without dead ends: 436 [2024-11-19 01:22:35,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=208, Invalid=913, Unknown=5, NotChecked=64, Total=1190 [2024-11-19 01:22:35,646 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 763 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:35,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 844 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 01:22:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-19 01:22:35,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 197. [2024-11-19 01:22:35,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 171 states have (on average 1.345029239766082) internal successors, (230), 171 states have internal predecessors, (230), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:22:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 274 transitions. [2024-11-19 01:22:35,664 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 274 transitions. Word has length 108 [2024-11-19 01:22:35,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:35,665 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 274 transitions. [2024-11-19 01:22:35,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 01:22:35,665 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 274 transitions. [2024-11-19 01:22:35,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 01:22:35,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:35,666 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:35,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 01:22:35,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:22:35,867 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:35,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:35,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1771157633, now seen corresponding path program 1 times [2024-11-19 01:22:35,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:35,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013472176] [2024-11-19 01:22:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:35,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:22:35,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958799734] [2024-11-19 01:22:35,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:35,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:22:35,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:22:35,984 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 01:22:35,992 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 01:22:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:36,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 01:22:36,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:22:36,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2024-11-19 01:22:37,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2024-11-19 01:22:37,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:37,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-19 01:22:37,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-19 01:22:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:37,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:22:37,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:37,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013472176] [2024-11-19 01:22:37,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:22:37,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958799734] [2024-11-19 01:22:37,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958799734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:37,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:37,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:22:37,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154024587] [2024-11-19 01:22:37,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:37,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:22:37,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:37,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:22:37,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:22:37,929 INFO L87 Difference]: Start difference. First operand 197 states and 274 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:41,464 INFO L93 Difference]: Finished difference Result 451 states and 630 transitions. [2024-11-19 01:22:41,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:22:41,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-19 01:22:41,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:41,467 INFO L225 Difference]: With dead ends: 451 [2024-11-19 01:22:41,467 INFO L226 Difference]: Without dead ends: 306 [2024-11-19 01:22:41,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:22:41,468 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 128 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:41,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 685 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 01:22:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-19 01:22:41,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 204. [2024-11-19 01:22:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 178 states have (on average 1.3370786516853932) internal successors, (238), 178 states have internal predecessors, (238), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:22:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 282 transitions. [2024-11-19 01:22:41,490 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 282 transitions. Word has length 108 [2024-11-19 01:22:41,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:41,490 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 282 transitions. [2024-11-19 01:22:41,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:41,490 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 282 transitions. [2024-11-19 01:22:41,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 01:22:41,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:41,491 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:41,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:22:41,695 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,SelfDestructingSolverStorable7 [2024-11-19 01:22:41,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:41,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:41,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1718407104, now seen corresponding path program 1 times [2024-11-19 01:22:41,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:41,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418459252] [2024-11-19 01:22:41,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:41,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:44,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:44,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418459252] [2024-11-19 01:22:44,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418459252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:44,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:44,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:22:44,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179905277] [2024-11-19 01:22:44,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:44,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:22:44,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:44,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:22:44,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:22:44,121 INFO L87 Difference]: Start difference. First operand 204 states and 282 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 01:22:44,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:44,899 INFO L93 Difference]: Finished difference Result 364 states and 505 transitions. [2024-11-19 01:22:44,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:22:44,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2024-11-19 01:22:44,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:44,901 INFO L225 Difference]: With dead ends: 364 [2024-11-19 01:22:44,901 INFO L226 Difference]: Without dead ends: 230 [2024-11-19 01:22:44,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:22:44,903 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 87 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:44,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 636 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:22:44,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-19 01:22:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 216. [2024-11-19 01:22:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 190 states have (on average 1.3263157894736841) internal successors, (252), 190 states have internal predecessors, (252), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:22:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 296 transitions. [2024-11-19 01:22:44,938 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 296 transitions. Word has length 108 [2024-11-19 01:22:44,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:44,942 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 296 transitions. [2024-11-19 01:22:44,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 01:22:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 296 transitions. [2024-11-19 01:22:44,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 01:22:44,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:44,943 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:44,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:22:44,943 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:44,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:44,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1137606269, now seen corresponding path program 1 times [2024-11-19 01:22:44,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:44,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877616020] [2024-11-19 01:22:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:44,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:47,789 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:47,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:47,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877616020] [2024-11-19 01:22:47,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877616020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:47,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:47,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 01:22:47,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927305623] [2024-11-19 01:22:47,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:47,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:22:47,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:47,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:22:47,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:22:47,791 INFO L87 Difference]: Start difference. First operand 216 states and 296 transitions. Second operand has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 13 states have internal predecessors, (56), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-19 01:22:49,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:49,621 INFO L93 Difference]: Finished difference Result 442 states and 609 transitions. [2024-11-19 01:22:49,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:22:49,621 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 13 states have internal predecessors, (56), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) Word has length 108 [2024-11-19 01:22:49,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:49,623 INFO L225 Difference]: With dead ends: 442 [2024-11-19 01:22:49,625 INFO L226 Difference]: Without dead ends: 308 [2024-11-19 01:22:49,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:22:49,626 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 497 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:49,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 838 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 01:22:49,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-19 01:22:49,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 235. [2024-11-19 01:22:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 209 states have (on average 1.3397129186602872) internal successors, (280), 209 states have internal predecessors, (280), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:22:49,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 324 transitions. [2024-11-19 01:22:49,671 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 324 transitions. Word has length 108 [2024-11-19 01:22:49,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:49,675 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 324 transitions. [2024-11-19 01:22:49,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 13 states have internal predecessors, (56), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-19 01:22:49,675 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 324 transitions. [2024-11-19 01:22:49,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 01:22:49,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:49,676 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:49,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:22:49,676 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:49,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:49,676 INFO L85 PathProgramCache]: Analyzing trace with hash 962336897, now seen corresponding path program 1 times [2024-11-19 01:22:49,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:49,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781033853] [2024-11-19 01:22:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:49,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:22:49,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022735450] [2024-11-19 01:22:49,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:49,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:22:49,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:22:49,798 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 01:22:49,801 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 01:22:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:49,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 01:22:49,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:22:50,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:50,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:22:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:50,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:22:50,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:50,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781033853] [2024-11-19 01:22:50,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:22:50,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022735450] [2024-11-19 01:22:50,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022735450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:50,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:50,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:22:50,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17314992] [2024-11-19 01:22:50,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:50,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:22:50,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:50,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:22:50,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:22:50,413 INFO L87 Difference]: Start difference. First operand 235 states and 324 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:50,730 INFO L93 Difference]: Finished difference Result 466 states and 649 transitions. [2024-11-19 01:22:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:22:50,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-19 01:22:50,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:50,732 INFO L225 Difference]: With dead ends: 466 [2024-11-19 01:22:50,732 INFO L226 Difference]: Without dead ends: 313 [2024-11-19 01:22:50,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:22:50,733 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 300 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:50,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 374 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:22:50,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-19 01:22:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 249. [2024-11-19 01:22:50,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 223 states have (on average 1.3497757847533631) internal successors, (301), 223 states have internal predecessors, (301), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:22:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 345 transitions. [2024-11-19 01:22:50,783 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 345 transitions. Word has length 108 [2024-11-19 01:22:50,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:50,784 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 345 transitions. [2024-11-19 01:22:50,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:50,784 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 345 transitions. [2024-11-19 01:22:50,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 01:22:50,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:50,785 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:50,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 01:22:50,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:22:50,990 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:50,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:50,990 INFO L85 PathProgramCache]: Analyzing trace with hash -626011005, now seen corresponding path program 1 times [2024-11-19 01:22:50,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:50,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058153365] [2024-11-19 01:22:50,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:50,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:52,172 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:52,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:52,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058153365] [2024-11-19 01:22:52,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058153365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:52,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:52,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:22:52,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006489963] [2024-11-19 01:22:52,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:52,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:22:52,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:52,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:22:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:22:52,174 INFO L87 Difference]: Start difference. First operand 249 states and 345 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:53,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:53,278 INFO L93 Difference]: Finished difference Result 528 states and 738 transitions. [2024-11-19 01:22:53,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:22:53,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-19 01:22:53,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:53,280 INFO L225 Difference]: With dead ends: 528 [2024-11-19 01:22:53,280 INFO L226 Difference]: Without dead ends: 351 [2024-11-19 01:22:53,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:22:53,281 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 301 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:53,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 679 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 01:22:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-19 01:22:53,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 279. [2024-11-19 01:22:53,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 253 states have (on average 1.359683794466403) internal successors, (344), 253 states have internal predecessors, (344), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:22:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 388 transitions. [2024-11-19 01:22:53,314 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 388 transitions. Word has length 108 [2024-11-19 01:22:53,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:53,314 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 388 transitions. [2024-11-19 01:22:53,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:53,314 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 388 transitions. [2024-11-19 01:22:53,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 01:22:53,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:53,315 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:53,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:22:53,315 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:53,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:53,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1647079359, now seen corresponding path program 1 times [2024-11-19 01:22:53,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:53,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175773535] [2024-11-19 01:22:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:53,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:54,008 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:22:54,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:54,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175773535] [2024-11-19 01:22:54,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175773535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:54,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:54,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:22:54,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483033594] [2024-11-19 01:22:54,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:54,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:22:54,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:54,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:22:54,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:22:54,010 INFO L87 Difference]: Start difference. First operand 279 states and 388 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:54,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:54,504 INFO L93 Difference]: Finished difference Result 560 states and 784 transitions. [2024-11-19 01:22:54,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:22:54,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-19 01:22:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:54,507 INFO L225 Difference]: With dead ends: 560 [2024-11-19 01:22:54,507 INFO L226 Difference]: Without dead ends: 357 [2024-11-19 01:22:54,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:22:54,508 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 263 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:54,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 795 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:22:54,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-19 01:22:54,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 306. [2024-11-19 01:22:54,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 280 states have (on average 1.3714285714285714) internal successors, (384), 280 states have internal predecessors, (384), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:22:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 428 transitions. [2024-11-19 01:22:54,550 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 428 transitions. Word has length 108 [2024-11-19 01:22:54,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:54,550 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 428 transitions. [2024-11-19 01:22:54,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:22:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 428 transitions. [2024-11-19 01:22:54,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 01:22:54,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:54,551 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:54,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:22:54,552 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:54,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:54,552 INFO L85 PathProgramCache]: Analyzing trace with hash 234761414, now seen corresponding path program 1 times [2024-11-19 01:22:54,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:54,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794559032] [2024-11-19 01:22:54,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:54,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:22:54,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017482851] [2024-11-19 01:22:54,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:54,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:22:54,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:22:54,676 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 01:22:54,679 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 01:22:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:55,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-19 01:22:55,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:22:55,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 42 [2024-11-19 01:22:55,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 62 [2024-11-19 01:22:58,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:22:59,249 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 28 treesize of output 23 [2024-11-19 01:22:59,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2024-11-19 01:22:59,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:22:59,559 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-19 01:22:59,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 57 [2024-11-19 01:22:59,858 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 0 case distinctions, treesize of input 50 treesize of output 43 [2024-11-19 01:23:00,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 26 [2024-11-19 01:23:00,089 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-19 01:23:00,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:23:00,769 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1518 Int) (v_ArrVal_1522 (Array Int Int)) (v_ArrVal_1523 Int) (v_ArrVal_1526 Int)) (let ((.cse1 (mod c_~last_1_WrapperStruct00_var_1_1~0 65536)) (.cse0 (let ((.cse5 (store |c_#memory_int| c_~WrapperStruct00_var_1_14_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset 200)))) (let ((.cse4 (store (select .cse5 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select (select .cse5 c_~WrapperStruct00_var_1_16_Pointer~0.base) c_~WrapperStruct00_var_1_16_Pointer~0.offset)))) (store (store (store |c_#memory_int| c_~WrapperStruct00_var_1_14_Pointer~0.base v_ArrVal_1522) c_~WrapperStruct00_var_1_15_Pointer~0.base .cse4) c_~WrapperStruct00_var_1_17_Pointer~0.base (store (select (store .cse5 c_~WrapperStruct00_var_1_15_Pointer~0.base .cse4) c_~WrapperStruct00_var_1_17_Pointer~0.base) c_~WrapperStruct00_var_1_17_Pointer~0.offset v_ArrVal_1518)))))) (or (< (div (mod (select (select .cse0 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 65536) (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)) (* .cse1 (select (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset))) (let ((.cse2 (let ((.cse3 (store .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset v_ArrVal_1523)))) (store .cse3 c_~WrapperStruct00_var_1_8_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset v_ArrVal_1526))))) (< (* (select (select .cse2 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) .cse1) (+ 1 (div (mod (select (select .cse2 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 65536) (mod (select (select .cse2 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)))))))) is different from false [2024-11-19 01:23:00,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794559032] [2024-11-19 01:23:00,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:23:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017482851] [2024-11-19 01:23:00,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017482851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:23:00,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:23:00,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-19 01:23:00,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750453571] [2024-11-19 01:23:00,928 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 01:23:00,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:23:00,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:00,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:23:00,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=225, Unknown=7, NotChecked=30, Total=306 [2024-11-19 01:23:00,930 INFO L87 Difference]: Start difference. First operand 306 states and 428 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:23:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:02,853 INFO L93 Difference]: Finished difference Result 727 states and 1025 transitions. [2024-11-19 01:23:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:23:02,854 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-19 01:23:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:02,855 INFO L225 Difference]: With dead ends: 727 [2024-11-19 01:23:02,855 INFO L226 Difference]: Without dead ends: 498 [2024-11-19 01:23:02,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=103, Invalid=400, Unknown=7, NotChecked=42, Total=552 [2024-11-19 01:23:02,856 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 434 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:02,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 687 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 01:23:02,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-19 01:23:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 317. [2024-11-19 01:23:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 291 states have (on average 1.3780068728522337) internal successors, (401), 291 states have internal predecessors, (401), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:23:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 445 transitions. [2024-11-19 01:23:02,882 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 445 transitions. Word has length 109 [2024-11-19 01:23:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:02,882 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 445 transitions. [2024-11-19 01:23:02,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:23:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 445 transitions. [2024-11-19 01:23:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 01:23:02,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:02,883 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:02,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 01:23:03,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:23:03,087 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:03,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:03,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1353586488, now seen corresponding path program 1 times [2024-11-19 01:23:03,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:03,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807163385] [2024-11-19 01:23:03,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:03,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:23:03,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1814373212] [2024-11-19 01:23:03,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:03,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:23:03,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:23:03,237 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 01:23:03,240 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 01:23:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:03,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 01:23:03,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:23:04,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:04,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:23:04,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:04,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:04,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:23:04,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 24 [2024-11-19 01:23:04,738 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:23:04,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:23:04,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:04,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807163385] [2024-11-19 01:23:04,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:23:04,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814373212] [2024-11-19 01:23:04,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814373212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:04,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:04,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:23:04,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212794201] [2024-11-19 01:23:04,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:04,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:23:04,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:04,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:23:04,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:23:04,742 INFO L87 Difference]: Start difference. First operand 317 states and 445 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:23:05,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:05,431 INFO L93 Difference]: Finished difference Result 551 states and 781 transitions. [2024-11-19 01:23:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:23:05,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-19 01:23:05,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:05,434 INFO L225 Difference]: With dead ends: 551 [2024-11-19 01:23:05,434 INFO L226 Difference]: Without dead ends: 317 [2024-11-19 01:23:05,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:23:05,435 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 117 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:05,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 495 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 11 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:23:05,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-19 01:23:05,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2024-11-19 01:23:05,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 291 states have (on average 1.3676975945017182) internal successors, (398), 291 states have internal predecessors, (398), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:23:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 442 transitions. [2024-11-19 01:23:05,485 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 442 transitions. Word has length 109 [2024-11-19 01:23:05,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:05,486 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 442 transitions. [2024-11-19 01:23:05,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:23:05,486 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 442 transitions. [2024-11-19 01:23:05,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 01:23:05,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:05,487 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:05,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 01:23:05,688 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,SelfDestructingSolverStorable14 [2024-11-19 01:23:05,689 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:05,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:05,689 INFO L85 PathProgramCache]: Analyzing trace with hash 257393668, now seen corresponding path program 1 times [2024-11-19 01:23:05,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:05,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951631638] [2024-11-19 01:23:05,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:05,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:23:05,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777920536] [2024-11-19 01:23:05,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:05,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:23:05,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:23:05,782 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:23:05,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 01:23:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:06,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-19 01:23:06,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:23:08,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:23:08,702 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 28 treesize of output 23 [2024-11-19 01:23:08,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2024-11-19 01:23:08,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,867 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-11-19 01:23:08,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 44 [2024-11-19 01:23:08,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:08,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-19 01:23:09,073 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-19 01:23:09,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:23:09,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:09,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951631638] [2024-11-19 01:23:09,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:23:09,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777920536] [2024-11-19 01:23:09,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777920536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:23:09,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:23:09,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-19 01:23:09,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466176871] [2024-11-19 01:23:09,682 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 01:23:09,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:23:09,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:09,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:23:09,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:23:09,683 INFO L87 Difference]: Start difference. First operand 317 states and 442 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:23:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:10,593 INFO L93 Difference]: Finished difference Result 596 states and 833 transitions. [2024-11-19 01:23:10,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:23:10,594 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-19 01:23:10,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:10,595 INFO L225 Difference]: With dead ends: 596 [2024-11-19 01:23:10,595 INFO L226 Difference]: Without dead ends: 367 [2024-11-19 01:23:10,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:23:10,596 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 238 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:10,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 444 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:23:10,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-19 01:23:10,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 301. [2024-11-19 01:23:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 275 states have (on average 1.3527272727272728) internal successors, (372), 275 states have internal predecessors, (372), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:23:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 416 transitions. [2024-11-19 01:23:10,624 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 416 transitions. Word has length 109 [2024-11-19 01:23:10,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:10,624 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 416 transitions. [2024-11-19 01:23:10,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:23:10,625 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 416 transitions. [2024-11-19 01:23:10,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 01:23:10,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:10,625 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:10,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 01:23:10,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 01:23:10,830 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:10,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:10,830 INFO L85 PathProgramCache]: Analyzing trace with hash 49061028, now seen corresponding path program 1 times [2024-11-19 01:23:10,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:10,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057917516] [2024-11-19 01:23:10,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:10,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:23:10,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185400968] [2024-11-19 01:23:10,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:10,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:23:10,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:23:10,873 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:23:10,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 01:23:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:11,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-19 01:23:11,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:23:13,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:23:13,339 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 28 treesize of output 23 [2024-11-19 01:23:13,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2024-11-19 01:23:13,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,491 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-11-19 01:23:13,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 44 [2024-11-19 01:23:13,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:13,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-19 01:23:13,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-19 01:23:13,690 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-19 01:23:13,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:23:14,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:14,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057917516] [2024-11-19 01:23:14,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:23:14,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185400968] [2024-11-19 01:23:14,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185400968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:23:14,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:23:14,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-19 01:23:14,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030638368] [2024-11-19 01:23:14,067 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 01:23:14,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:23:14,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:23:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:23:14,068 INFO L87 Difference]: Start difference. First operand 301 states and 416 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:23:14,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:14,797 INFO L93 Difference]: Finished difference Result 565 states and 782 transitions. [2024-11-19 01:23:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:23:14,798 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-19 01:23:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:14,799 INFO L225 Difference]: With dead ends: 565 [2024-11-19 01:23:14,799 INFO L226 Difference]: Without dead ends: 350 [2024-11-19 01:23:14,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-19 01:23:14,800 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 288 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:14,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 409 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:23:14,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-19 01:23:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 290. [2024-11-19 01:23:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 264 states have (on average 1.3371212121212122) internal successors, (353), 264 states have internal predecessors, (353), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:23:14,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 397 transitions. [2024-11-19 01:23:14,829 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 397 transitions. Word has length 110 [2024-11-19 01:23:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:14,829 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 397 transitions. [2024-11-19 01:23:14,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:23:14,830 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 397 transitions. [2024-11-19 01:23:14,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 01:23:14,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:14,830 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:14,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 01:23:15,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:23:15,032 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:15,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:15,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1613857758, now seen corresponding path program 1 times [2024-11-19 01:23:15,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:15,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441431198] [2024-11-19 01:23:15,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:15,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:23:15,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689648362] [2024-11-19 01:23:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:15,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:23:15,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:23:15,101 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:23:15,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 01:23:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:15,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-11-19 01:23:15,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:23:16,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:23:17,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:23:17,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:23:18,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:23:18,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:18,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:18,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:18,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 22 [2024-11-19 01:23:18,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:18,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:18,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:18,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:18,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:18,963 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 61 treesize of output 64 [2024-11-19 01:23:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,350 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 0 case distinctions, treesize of input 72 treesize of output 67 [2024-11-19 01:23:19,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:23:19,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2024-11-19 01:23:19,747 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-19 01:23:19,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:23:24,684 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2212 Int) (v_ArrVal_2206 Int) (v_z_12 Int)) (let ((.cse2 (let ((.cse4 (let ((.cse5 (store |c_#memory_int| c_~WrapperStruct00_var_1_14_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset 200)))) (store .cse5 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse5 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select (select .cse5 c_~WrapperStruct00_var_1_16_Pointer~0.base) c_~WrapperStruct00_var_1_16_Pointer~0.offset)))))) (store .cse4 c_~WrapperStruct00_var_1_17_Pointer~0.base (store (select .cse4 c_~WrapperStruct00_var_1_17_Pointer~0.base) c_~WrapperStruct00_var_1_17_Pointer~0.offset v_ArrVal_2206))))) (let ((.cse3 (select (select .cse2 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset))) (or (< 65535 v_z_12) (< v_z_12 0) (let ((.cse0 (let ((.cse1 (store .cse2 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset .cse3)))) (store .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset v_ArrVal_2212))))) (< (div (mod (select (select .cse0 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 65536) (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)) (* v_z_12 (select (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset)))) (< (* v_z_12 (select (select .cse2 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset)) (+ (div (mod .cse3 65536) (mod (select (select .cse2 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)) 1)))))) is different from false [2024-11-19 01:23:24,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:24,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441431198] [2024-11-19 01:23:24,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:23:24,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689648362] [2024-11-19 01:23:24,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689648362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:23:24,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:23:24,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-19 01:23:24,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572417553] [2024-11-19 01:23:24,929 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 01:23:24,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:23:24,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:24,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:23:24,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=193, Unknown=8, NotChecked=28, Total=272 [2024-11-19 01:23:24,930 INFO L87 Difference]: Start difference. First operand 290 states and 397 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:23:30,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-19 01:23:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:31,323 INFO L93 Difference]: Finished difference Result 553 states and 759 transitions. [2024-11-19 01:23:31,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:23:31,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-19 01:23:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:31,326 INFO L225 Difference]: With dead ends: 553 [2024-11-19 01:23:31,326 INFO L226 Difference]: Without dead ends: 351 [2024-11-19 01:23:31,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=94, Invalid=322, Unknown=8, NotChecked=38, Total=462 [2024-11-19 01:23:31,327 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 208 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:31,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 741 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-19 01:23:31,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-19 01:23:31,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 289. [2024-11-19 01:23:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 263 states have (on average 1.3346007604562737) internal successors, (351), 263 states have internal predecessors, (351), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:23:31,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 395 transitions. [2024-11-19 01:23:31,366 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 395 transitions. Word has length 110 [2024-11-19 01:23:31,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:31,367 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 395 transitions. [2024-11-19 01:23:31,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 01:23:31,367 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 395 transitions. [2024-11-19 01:23:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 01:23:31,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:31,368 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:31,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 01:23:31,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 01:23:31,569 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:31,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:31,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1376027624, now seen corresponding path program 1 times [2024-11-19 01:23:31,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:31,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357759577] [2024-11-19 01:23:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:23:31,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:31,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357759577] [2024-11-19 01:23:31,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357759577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:31,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:31,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:23:31,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177815110] [2024-11-19 01:23:31,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:31,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:23:31,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:31,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:23:31,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:23:31,664 INFO L87 Difference]: Start difference. First operand 289 states and 395 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:23:31,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:31,705 INFO L93 Difference]: Finished difference Result 488 states and 672 transitions. [2024-11-19 01:23:31,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:23:31,706 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-19 01:23:31,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:31,707 INFO L225 Difference]: With dead ends: 488 [2024-11-19 01:23:31,707 INFO L226 Difference]: Without dead ends: 287 [2024-11-19 01:23:31,708 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 01:23:31,709 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:31,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 291 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:23:31,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-19 01:23:31,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-11-19 01:23:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 261 states have (on average 1.3026819923371646) internal successors, (340), 261 states have internal predecessors, (340), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:23:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 384 transitions. [2024-11-19 01:23:31,749 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 384 transitions. Word has length 110 [2024-11-19 01:23:31,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:31,749 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 384 transitions. [2024-11-19 01:23:31,750 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:23:31,750 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 384 transitions. [2024-11-19 01:23:31,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 01:23:31,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:31,751 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:31,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 01:23:31,751 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:31,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:31,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1679660447, now seen corresponding path program 1 times [2024-11-19 01:23:31,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:31,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532521662] [2024-11-19 01:23:31,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:31,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:32,057 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:23:32,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:32,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532521662] [2024-11-19 01:23:32,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532521662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:32,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:32,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:23:32,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343105679] [2024-11-19 01:23:32,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:32,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:23:32,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:32,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:23:32,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:23:32,059 INFO L87 Difference]: Start difference. First operand 287 states and 384 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:23:32,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:32,502 INFO L93 Difference]: Finished difference Result 554 states and 743 transitions. [2024-11-19 01:23:32,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:23:32,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-19 01:23:32,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:32,504 INFO L225 Difference]: With dead ends: 554 [2024-11-19 01:23:32,505 INFO L226 Difference]: Without dead ends: 355 [2024-11-19 01:23:32,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:23:32,506 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 236 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:32,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 478 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:23:32,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-19 01:23:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 320. [2024-11-19 01:23:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 294 states have (on average 1.2993197278911566) internal successors, (382), 294 states have internal predecessors, (382), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:23:32,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 426 transitions. [2024-11-19 01:23:32,550 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 426 transitions. Word has length 110 [2024-11-19 01:23:32,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:32,551 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 426 transitions. [2024-11-19 01:23:32,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:23:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 426 transitions. [2024-11-19 01:23:32,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 01:23:32,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:32,554 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:32,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 01:23:32,558 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:32,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:32,558 INFO L85 PathProgramCache]: Analyzing trace with hash 868132520, now seen corresponding path program 1 times [2024-11-19 01:23:32,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:32,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489021024] [2024-11-19 01:23:32,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:32,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:34,248 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:23:34,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:34,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489021024] [2024-11-19 01:23:34,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489021024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:34,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:34,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:23:34,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14672268] [2024-11-19 01:23:34,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:34,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:23:34,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:34,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:23:34,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:23:34,250 INFO L87 Difference]: Start difference. First operand 320 states and 426 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 01:23:34,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:34,757 INFO L93 Difference]: Finished difference Result 592 states and 791 transitions. [2024-11-19 01:23:34,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:23:34,761 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 110 [2024-11-19 01:23:34,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:34,763 INFO L225 Difference]: With dead ends: 592 [2024-11-19 01:23:34,763 INFO L226 Difference]: Without dead ends: 351 [2024-11-19 01:23:34,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:23:34,766 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 224 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:34,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 522 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:23:34,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-19 01:23:34,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 311. [2024-11-19 01:23:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 285 states have (on average 1.2701754385964912) internal successors, (362), 285 states have internal predecessors, (362), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:23:34,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 406 transitions. [2024-11-19 01:23:34,800 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 406 transitions. Word has length 110 [2024-11-19 01:23:34,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:34,801 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 406 transitions. [2024-11-19 01:23:34,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 01:23:34,801 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 406 transitions. [2024-11-19 01:23:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 01:23:34,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:34,802 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:34,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 01:23:34,802 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:34,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:34,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1363964450, now seen corresponding path program 1 times [2024-11-19 01:23:34,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:34,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477072134] [2024-11-19 01:23:34,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:34,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 01:23:35,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:35,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477072134] [2024-11-19 01:23:35,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477072134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:35,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:35,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:23:35,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847535739] [2024-11-19 01:23:35,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:35,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:23:35,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:35,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:23:35,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:23:35,949 INFO L87 Difference]: Start difference. First operand 311 states and 406 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 01:23:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:36,499 INFO L93 Difference]: Finished difference Result 568 states and 743 transitions. [2024-11-19 01:23:36,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:23:36,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 111 [2024-11-19 01:23:36,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:36,503 INFO L225 Difference]: With dead ends: 568 [2024-11-19 01:23:36,503 INFO L226 Difference]: Without dead ends: 345 [2024-11-19 01:23:36,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:23:36,504 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 354 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:36,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 547 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:23:36,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-19 01:23:36,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 306. [2024-11-19 01:23:36,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 280 states have (on average 1.2571428571428571) internal successors, (352), 280 states have internal predecessors, (352), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 01:23:36,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 396 transitions. [2024-11-19 01:23:36,547 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 396 transitions. Word has length 111 [2024-11-19 01:23:36,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:36,547 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 396 transitions. [2024-11-19 01:23:36,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 01:23:36,548 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 396 transitions. [2024-11-19 01:23:36,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 01:23:36,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:36,549 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:36,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 01:23:36,549 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:36,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:36,549 INFO L85 PathProgramCache]: Analyzing trace with hash 555859810, now seen corresponding path program 1 times [2024-11-19 01:23:36,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:36,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475461038] [2024-11-19 01:23:36,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:36,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:23:36,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584660651] [2024-11-19 01:23:36,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:36,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:23:36,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:23:36,612 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:23:36,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process