./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-63.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-63.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 e08b130d986262ceb0772f034a60f5b23796cc6f800ada70e6af5834a62fdc07 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:18:54,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:18:54,217 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 09:18:54,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:18:54,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:18:54,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:18:54,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:18:54,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:18:54,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:18:54,256 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:18:54,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:18:54,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:18:54,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:18:54,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:18:54,257 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:18:54,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:18:54,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:18:54,258 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:18:54,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 09:18:54,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:18:54,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:18:54,260 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:18:54,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:18:54,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:18:54,261 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:18:54,261 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:18:54,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:18:54,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:18:54,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:18:54,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:18:54,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:18:54,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:18:54,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:18:54,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:18:54,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:18:54,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:18:54,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 09:18:54,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 09:18:54,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:18:54,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:18:54,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:18:54,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:18:54,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e08b130d986262ceb0772f034a60f5b23796cc6f800ada70e6af5834a62fdc07 [2024-10-24 09:18:54,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:18:54,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:18:54,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:18:54,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:18:54,576 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:18:54,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-63.i [2024-10-24 09:18:56,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:18:56,200 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:18:56,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-63.i [2024-10-24 09:18:56,223 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62e3f9873/0dc7c6bb062641d28637b47fcf1d75b0/FLAGa04e1474f [2024-10-24 09:18:56,563 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62e3f9873/0dc7c6bb062641d28637b47fcf1d75b0 [2024-10-24 09:18:56,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:18:56,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:18:56,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:18:56,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:18:56,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:18:56,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:18:56" (1/1) ... [2024-10-24 09:18:56,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2453756c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:56, skipping insertion in model container [2024-10-24 09:18:56,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:18:56" (1/1) ... [2024-10-24 09:18:56,614 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:18:56,795 WARN L248 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_loopvsstraightlinecode_100-while_file-63.i[916,929] [2024-10-24 09:18:56,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:18:56,915 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:18:56,930 WARN L248 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_loopvsstraightlinecode_100-while_file-63.i[916,929] [2024-10-24 09:18:56,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:18:57,002 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:18:57,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57 WrapperNode [2024-10-24 09:18:57,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:18:57,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:18:57,007 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:18:57,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:18:57,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,091 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 212 [2024-10-24 09:18:57,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:18:57,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:18:57,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:18:57,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:18:57,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,143 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 09:18:57,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:18:57,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:18:57,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:18:57,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:18:57,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (1/1) ... [2024-10-24 09:18:57,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:18:57,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:18:57,240 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) [2024-10-24 09:18:57,245 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 [2024-10-24 09:18:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:18:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:18:57,297 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:18:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 09:18:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:18:57,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:18:57,381 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:18:57,384 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:18:57,895 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-10-24 09:18:57,896 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:18:57,944 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:18:57,944 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:18:57,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:18:57 BoogieIcfgContainer [2024-10-24 09:18:57,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:18:57,949 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:18:57,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:18:57,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:18:57,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:18:56" (1/3) ... [2024-10-24 09:18:57,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131dd799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:18:57, skipping insertion in model container [2024-10-24 09:18:57,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:18:57" (2/3) ... [2024-10-24 09:18:57,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131dd799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:18:57, skipping insertion in model container [2024-10-24 09:18:57,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:18:57" (3/3) ... [2024-10-24 09:18:57,958 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-63.i [2024-10-24 09:18:57,972 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:18:57,972 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:18:58,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:18:58,047 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;@53120f40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:18:58,047 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:18:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 61 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 09:18:58,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 09:18:58,068 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:18:58,068 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:18:58,069 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:18:58,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:18:58,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2124453476, now seen corresponding path program 1 times [2024-10-24 09:18:58,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:18:58,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618916639] [2024-10-24 09:18:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:18:58,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:18:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:18:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:18:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:18:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:18:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:18:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:18:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:18:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:18:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:18:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:18:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:18:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:18:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:18:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:18:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:18:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:18:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:18:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:18:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:18:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:18:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:18:58,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:18:58,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618916639] [2024-10-24 09:18:58,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618916639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:18:58,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:18:58,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 09:18:58,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316795628] [2024-10-24 09:18:58,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:18:58,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 09:18:58,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:18:58,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 09:18:58,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:18:58,783 INFO L87 Difference]: Start difference. First operand has 83 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 61 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:18:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:18:58,860 INFO L93 Difference]: Finished difference Result 162 states and 282 transitions. [2024-10-24 09:18:58,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 09:18:58,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 09:18:58,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:18:58,876 INFO L225 Difference]: With dead ends: 162 [2024-10-24 09:18:58,877 INFO L226 Difference]: Without dead ends: 80 [2024-10-24 09:18:58,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:18:58,888 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:18:58,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:18:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-24 09:18:58,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-10-24 09:18:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 58 states have internal predecessors, (82), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 09:18:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 122 transitions. [2024-10-24 09:18:58,935 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 122 transitions. Word has length 139 [2024-10-24 09:18:58,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:18:58,937 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 122 transitions. [2024-10-24 09:18:58,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:18:58,937 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 122 transitions. [2024-10-24 09:18:58,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 09:18:58,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:18:58,942 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:18:58,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 09:18:58,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:18:58,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:18:58,944 INFO L85 PathProgramCache]: Analyzing trace with hash -19448004, now seen corresponding path program 1 times [2024-10-24 09:18:58,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:18:58,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429166071] [2024-10-24 09:18:58,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:18:58,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:18:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:18:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:18:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:18:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:18:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:18:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:18:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:18:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:18:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:18:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:18:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:18:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:18:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:18:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:18:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:18:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:18:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:18:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:18:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:18:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:18:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,296 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:18:59,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:18:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429166071] [2024-10-24 09:18:59,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429166071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:18:59,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:18:59,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 09:18:59,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204844052] [2024-10-24 09:18:59,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:18:59,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 09:18:59,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:18:59,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 09:18:59,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:18:59,306 INFO L87 Difference]: Start difference. First operand 80 states and 122 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:18:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:18:59,395 INFO L93 Difference]: Finished difference Result 208 states and 315 transitions. [2024-10-24 09:18:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 09:18:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 09:18:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:18:59,401 INFO L225 Difference]: With dead ends: 208 [2024-10-24 09:18:59,401 INFO L226 Difference]: Without dead ends: 129 [2024-10-24 09:18:59,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:18:59,403 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 70 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:18:59,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 222 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:18:59,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-10-24 09:18:59,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 126. [2024-10-24 09:18:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 95 states have (on average 1.4105263157894736) internal successors, (134), 96 states have internal predecessors, (134), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-24 09:18:59,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 190 transitions. [2024-10-24 09:18:59,430 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 190 transitions. Word has length 139 [2024-10-24 09:18:59,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:18:59,431 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 190 transitions. [2024-10-24 09:18:59,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:18:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 190 transitions. [2024-10-24 09:18:59,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 09:18:59,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:18:59,437 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:18:59,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 09:18:59,437 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:18:59,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:18:59,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1242102846, now seen corresponding path program 1 times [2024-10-24 09:18:59,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:18:59,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021201303] [2024-10-24 09:18:59,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:18:59,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:18:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:18:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:18:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:18:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:18:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:18:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:18:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:18:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:18:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:18:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:18:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:18:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:18:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:18:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:18:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:18:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:18:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:18:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:18:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:18:59,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:18:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:00,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:00,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:00,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021201303] [2024-10-24 09:19:00,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021201303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:00,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:00,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:19:00,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241283382] [2024-10-24 09:19:00,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:00,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:19:00,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:00,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:19:00,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:19:00,015 INFO L87 Difference]: Start difference. First operand 126 states and 190 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:00,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:00,220 INFO L93 Difference]: Finished difference Result 366 states and 550 transitions. [2024-10-24 09:19:00,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:19:00,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 09:19:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:00,228 INFO L225 Difference]: With dead ends: 366 [2024-10-24 09:19:00,230 INFO L226 Difference]: Without dead ends: 241 [2024-10-24 09:19:00,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:19:00,235 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 88 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:00,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 338 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:19:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-10-24 09:19:00,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 177. [2024-10-24 09:19:00,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 125 states have internal predecessors, (169), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 09:19:00,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 265 transitions. [2024-10-24 09:19:00,278 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 265 transitions. Word has length 139 [2024-10-24 09:19:00,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:00,280 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 265 transitions. [2024-10-24 09:19:00,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 265 transitions. [2024-10-24 09:19:00,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 09:19:00,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:00,286 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:00,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 09:19:00,287 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:00,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:00,288 INFO L85 PathProgramCache]: Analyzing trace with hash -563335488, now seen corresponding path program 1 times [2024-10-24 09:19:00,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:00,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896018978] [2024-10-24 09:19:00,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:00,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:10,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:11,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:11,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896018978] [2024-10-24 09:19:11,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896018978] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:11,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:11,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 09:19:11,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266317214] [2024-10-24 09:19:11,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:11,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 09:19:11,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:11,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 09:19:11,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-10-24 09:19:11,130 INFO L87 Difference]: Start difference. First operand 177 states and 265 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:13,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:13,680 INFO L93 Difference]: Finished difference Result 565 states and 828 transitions. [2024-10-24 09:19:13,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 09:19:13,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 09:19:13,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:13,687 INFO L225 Difference]: With dead ends: 565 [2024-10-24 09:19:13,687 INFO L226 Difference]: Without dead ends: 440 [2024-10-24 09:19:13,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2024-10-24 09:19:13,690 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 1149 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:13,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 567 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 09:19:13,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-10-24 09:19:13,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 197. [2024-10-24 09:19:13,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 144 states have (on average 1.3819444444444444) internal successors, (199), 145 states have internal predecessors, (199), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 09:19:13,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 295 transitions. [2024-10-24 09:19:13,736 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 295 transitions. Word has length 139 [2024-10-24 09:19:13,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:13,736 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 295 transitions. [2024-10-24 09:19:13,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 295 transitions. [2024-10-24 09:19:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 09:19:13,741 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:13,741 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:13,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 09:19:13,741 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:13,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:13,742 INFO L85 PathProgramCache]: Analyzing trace with hash -135942596, now seen corresponding path program 1 times [2024-10-24 09:19:13,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:13,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352319798] [2024-10-24 09:19:13,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:13,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,064 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:14,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:14,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352319798] [2024-10-24 09:19:14,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352319798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:14,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:14,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:19:14,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017577064] [2024-10-24 09:19:14,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:14,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:19:14,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:14,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:19:14,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:19:14,069 INFO L87 Difference]: Start difference. First operand 197 states and 295 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:14,204 INFO L93 Difference]: Finished difference Result 397 states and 592 transitions. [2024-10-24 09:19:14,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:19:14,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 09:19:14,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:14,207 INFO L225 Difference]: With dead ends: 397 [2024-10-24 09:19:14,207 INFO L226 Difference]: Without dead ends: 252 [2024-10-24 09:19:14,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:19:14,210 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 187 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:14,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 258 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:19:14,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-10-24 09:19:14,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 205. [2024-10-24 09:19:14,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 152 states have (on average 1.388157894736842) internal successors, (211), 153 states have internal predecessors, (211), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 09:19:14,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 307 transitions. [2024-10-24 09:19:14,240 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 307 transitions. Word has length 139 [2024-10-24 09:19:14,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:14,240 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 307 transitions. [2024-10-24 09:19:14,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 307 transitions. [2024-10-24 09:19:14,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 09:19:14,242 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:14,242 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:14,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 09:19:14,243 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:14,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:14,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1380983938, now seen corresponding path program 1 times [2024-10-24 09:19:14,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:14,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249465550] [2024-10-24 09:19:14,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:14,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,465 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:14,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:14,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249465550] [2024-10-24 09:19:14,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249465550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:14,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:14,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:19:14,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981935655] [2024-10-24 09:19:14,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:14,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:19:14,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:14,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:19:14,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:19:14,468 INFO L87 Difference]: Start difference. First operand 205 states and 307 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:14,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:14,619 INFO L93 Difference]: Finished difference Result 457 states and 681 transitions. [2024-10-24 09:19:14,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:19:14,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 09:19:14,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:14,622 INFO L225 Difference]: With dead ends: 457 [2024-10-24 09:19:14,622 INFO L226 Difference]: Without dead ends: 305 [2024-10-24 09:19:14,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:19:14,623 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 148 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:14,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 304 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:19:14,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-10-24 09:19:14,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 205. [2024-10-24 09:19:14,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 152 states have (on average 1.375) internal successors, (209), 153 states have internal predecessors, (209), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 09:19:14,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 305 transitions. [2024-10-24 09:19:14,641 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 305 transitions. Word has length 139 [2024-10-24 09:19:14,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:14,641 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 305 transitions. [2024-10-24 09:19:14,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:14,642 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 305 transitions. [2024-10-24 09:19:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 09:19:14,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:14,645 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:14,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 09:19:14,646 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:14,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:14,646 INFO L85 PathProgramCache]: Analyzing trace with hash -953591046, now seen corresponding path program 1 times [2024-10-24 09:19:14,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:14,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058786354] [2024-10-24 09:19:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:14,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:14,964 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:14,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:14,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058786354] [2024-10-24 09:19:14,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058786354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:14,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:14,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:19:14,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484011785] [2024-10-24 09:19:14,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:14,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:19:14,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:14,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:19:14,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:19:14,966 INFO L87 Difference]: Start difference. First operand 205 states and 305 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:15,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:15,210 INFO L93 Difference]: Finished difference Result 435 states and 646 transitions. [2024-10-24 09:19:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 09:19:15,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 09:19:15,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:15,213 INFO L225 Difference]: With dead ends: 435 [2024-10-24 09:19:15,213 INFO L226 Difference]: Without dead ends: 283 [2024-10-24 09:19:15,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 09:19:15,215 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 159 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:15,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 526 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:19:15,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-10-24 09:19:15,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 268. [2024-10-24 09:19:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 193 states have (on average 1.3575129533678756) internal successors, (262), 195 states have internal predecessors, (262), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 09:19:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 398 transitions. [2024-10-24 09:19:15,240 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 398 transitions. Word has length 139 [2024-10-24 09:19:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:15,241 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 398 transitions. [2024-10-24 09:19:15,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 398 transitions. [2024-10-24 09:19:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 09:19:15,242 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:15,243 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:15,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 09:19:15,243 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:15,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:15,243 INFO L85 PathProgramCache]: Analyzing trace with hash 821416316, now seen corresponding path program 1 times [2024-10-24 09:19:15,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:15,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669145625] [2024-10-24 09:19:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:15,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:19,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:19,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669145625] [2024-10-24 09:19:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669145625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:19,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:19,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 09:19:19,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662308926] [2024-10-24 09:19:19,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:19,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 09:19:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:19,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 09:19:19,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 09:19:19,668 INFO L87 Difference]: Start difference. First operand 268 states and 398 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:20,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:20,245 INFO L93 Difference]: Finished difference Result 571 states and 841 transitions. [2024-10-24 09:19:20,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 09:19:20,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 09:19:20,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:20,248 INFO L225 Difference]: With dead ends: 571 [2024-10-24 09:19:20,248 INFO L226 Difference]: Without dead ends: 356 [2024-10-24 09:19:20,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:19:20,253 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 219 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:20,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 362 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 09:19:20,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-24 09:19:20,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 295. [2024-10-24 09:19:20,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 220 states have (on average 1.3590909090909091) internal successors, (299), 222 states have internal predecessors, (299), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 09:19:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 435 transitions. [2024-10-24 09:19:20,285 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 435 transitions. Word has length 139 [2024-10-24 09:19:20,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:20,287 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 435 transitions. [2024-10-24 09:19:20,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 435 transitions. [2024-10-24 09:19:20,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 09:19:20,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:20,290 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:20,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 09:19:20,290 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:20,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:20,291 INFO L85 PathProgramCache]: Analyzing trace with hash 980799791, now seen corresponding path program 1 times [2024-10-24 09:19:20,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:20,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494286244] [2024-10-24 09:19:20,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:20,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:37,325 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:37,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:37,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494286244] [2024-10-24 09:19:37,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494286244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:37,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:37,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 09:19:37,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382940432] [2024-10-24 09:19:37,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:37,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 09:19:37,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:37,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 09:19:37,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:19:37,328 INFO L87 Difference]: Start difference. First operand 295 states and 435 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:38,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:38,212 INFO L93 Difference]: Finished difference Result 776 states and 1128 transitions. [2024-10-24 09:19:38,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 09:19:38,214 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 09:19:38,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:38,217 INFO L225 Difference]: With dead ends: 776 [2024-10-24 09:19:38,217 INFO L226 Difference]: Without dead ends: 534 [2024-10-24 09:19:38,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2024-10-24 09:19:38,219 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 252 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:38,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 584 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 09:19:38,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-10-24 09:19:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 321. [2024-10-24 09:19:38,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 246 states have (on average 1.3699186991869918) internal successors, (337), 248 states have internal predecessors, (337), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 09:19:38,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 473 transitions. [2024-10-24 09:19:38,248 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 473 transitions. Word has length 140 [2024-10-24 09:19:38,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:38,248 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 473 transitions. [2024-10-24 09:19:38,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 473 transitions. [2024-10-24 09:19:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 09:19:38,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:38,250 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:38,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 09:19:38,250 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:38,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:38,251 INFO L85 PathProgramCache]: Analyzing trace with hash 171453165, now seen corresponding path program 1 times [2024-10-24 09:19:38,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:38,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600011961] [2024-10-24 09:19:38,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:38,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:44,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:45,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:45,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:45,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:45,014 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:45,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:45,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600011961] [2024-10-24 09:19:45,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600011961] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:45,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:45,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 09:19:45,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300380050] [2024-10-24 09:19:45,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:45,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 09:19:45,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:45,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 09:19:45,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-10-24 09:19:45,016 INFO L87 Difference]: Start difference. First operand 321 states and 473 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:46,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:46,496 INFO L93 Difference]: Finished difference Result 829 states and 1204 transitions. [2024-10-24 09:19:46,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 09:19:46,497 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 09:19:46,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:46,500 INFO L225 Difference]: With dead ends: 829 [2024-10-24 09:19:46,500 INFO L226 Difference]: Without dead ends: 561 [2024-10-24 09:19:46,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2024-10-24 09:19:46,502 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 495 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:46,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 821 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 09:19:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-10-24 09:19:46,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 337. [2024-10-24 09:19:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 262 states have (on average 1.3740458015267176) internal successors, (360), 264 states have internal predecessors, (360), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 09:19:46,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 496 transitions. [2024-10-24 09:19:46,533 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 496 transitions. Word has length 140 [2024-10-24 09:19:46,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:46,534 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 496 transitions. [2024-10-24 09:19:46,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:46,534 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 496 transitions. [2024-10-24 09:19:46,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 09:19:46,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:46,536 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:46,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 09:19:46,537 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:46,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:46,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1452757786, now seen corresponding path program 1 times [2024-10-24 09:19:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:46,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731746363] [2024-10-24 09:19:46,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:46,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:46,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:46,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731746363] [2024-10-24 09:19:46,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731746363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:46,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:46,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:19:46,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123317527] [2024-10-24 09:19:46,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:46,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:19:46,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:46,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:19:46,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:19:46,693 INFO L87 Difference]: Start difference. First operand 337 states and 496 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:46,777 INFO L93 Difference]: Finished difference Result 772 states and 1129 transitions. [2024-10-24 09:19:46,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:19:46,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 09:19:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:46,782 INFO L225 Difference]: With dead ends: 772 [2024-10-24 09:19:46,783 INFO L226 Difference]: Without dead ends: 504 [2024-10-24 09:19:46,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:19:46,784 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 106 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:46,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 216 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:19:46,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-10-24 09:19:46,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 499. [2024-10-24 09:19:46,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 402 states have (on average 1.3681592039800996) internal successors, (550), 407 states have internal predecessors, (550), 86 states have call successors, (86), 10 states have call predecessors, (86), 10 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-24 09:19:46,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 722 transitions. [2024-10-24 09:19:46,818 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 722 transitions. Word has length 140 [2024-10-24 09:19:46,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:46,818 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 722 transitions. [2024-10-24 09:19:46,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:46,819 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 722 transitions. [2024-10-24 09:19:46,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 09:19:46,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:46,822 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:46,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 09:19:46,822 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:46,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:46,822 INFO L85 PathProgramCache]: Analyzing trace with hash -846292639, now seen corresponding path program 1 times [2024-10-24 09:19:46,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:46,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708652083] [2024-10-24 09:19:46,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:46,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:50,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708652083] [2024-10-24 09:19:50,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708652083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:50,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:50,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 09:19:50,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633028820] [2024-10-24 09:19:50,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:50,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 09:19:50,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:50,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 09:19:50,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 09:19:50,975 INFO L87 Difference]: Start difference. First operand 499 states and 722 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:51,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:51,347 INFO L93 Difference]: Finished difference Result 1209 states and 1744 transitions. [2024-10-24 09:19:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 09:19:51,348 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 09:19:51,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:51,352 INFO L225 Difference]: With dead ends: 1209 [2024-10-24 09:19:51,352 INFO L226 Difference]: Without dead ends: 797 [2024-10-24 09:19:51,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:19:51,354 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 207 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:51,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 398 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 09:19:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-10-24 09:19:51,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 519. [2024-10-24 09:19:51,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 422 states have (on average 1.372037914691943) internal successors, (579), 427 states have internal predecessors, (579), 86 states have call successors, (86), 10 states have call predecessors, (86), 10 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-24 09:19:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 751 transitions. [2024-10-24 09:19:51,394 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 751 transitions. Word has length 140 [2024-10-24 09:19:51,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:51,395 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 751 transitions. [2024-10-24 09:19:51,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 751 transitions. [2024-10-24 09:19:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 09:19:51,397 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:51,397 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:51,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 09:19:51,397 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:51,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:51,398 INFO L85 PathProgramCache]: Analyzing trace with hash 928714723, now seen corresponding path program 1 times [2024-10-24 09:19:51,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:51,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759514657] [2024-10-24 09:19:51,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:51,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:52,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:52,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759514657] [2024-10-24 09:19:52,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759514657] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:52,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:52,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 09:19:52,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763031688] [2024-10-24 09:19:52,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:52,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 09:19:52,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:52,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 09:19:52,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:19:52,389 INFO L87 Difference]: Start difference. First operand 519 states and 751 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 09:19:53,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:53,567 INFO L93 Difference]: Finished difference Result 1657 states and 2356 transitions. [2024-10-24 09:19:53,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 09:19:53,568 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 140 [2024-10-24 09:19:53,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:53,577 INFO L225 Difference]: With dead ends: 1657 [2024-10-24 09:19:53,577 INFO L226 Difference]: Without dead ends: 1201 [2024-10-24 09:19:53,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2024-10-24 09:19:53,582 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 446 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:53,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1090 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 09:19:53,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-10-24 09:19:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 895. [2024-10-24 09:19:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 785 states have (on average 1.4063694267515923) internal successors, (1104), 794 states have internal predecessors, (1104), 94 states have call successors, (94), 15 states have call predecessors, (94), 15 states have return successors, (94), 85 states have call predecessors, (94), 94 states have call successors, (94) [2024-10-24 09:19:53,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1292 transitions. [2024-10-24 09:19:53,656 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1292 transitions. Word has length 140 [2024-10-24 09:19:53,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:53,658 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1292 transitions. [2024-10-24 09:19:53,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 09:19:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1292 transitions. [2024-10-24 09:19:53,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 09:19:53,660 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:53,660 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:53,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 09:19:53,661 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:53,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:53,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2091333981, now seen corresponding path program 1 times [2024-10-24 09:19:53,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:53,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628053442] [2024-10-24 09:19:53,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:53,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:53,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:53,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628053442] [2024-10-24 09:19:53,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628053442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:53,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:53,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:19:53,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807508538] [2024-10-24 09:19:53,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:53,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:19:53,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:53,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:19:53,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:19:53,911 INFO L87 Difference]: Start difference. First operand 895 states and 1292 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:54,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:19:54,122 INFO L93 Difference]: Finished difference Result 1593 states and 2307 transitions. [2024-10-24 09:19:54,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 09:19:54,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 09:19:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:19:54,128 INFO L225 Difference]: With dead ends: 1593 [2024-10-24 09:19:54,128 INFO L226 Difference]: Without dead ends: 1103 [2024-10-24 09:19:54,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 09:19:54,131 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 195 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:19:54,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 481 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:19:54,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2024-10-24 09:19:54,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 726. [2024-10-24 09:19:54,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 666 states have (on average 1.412912912912913) internal successors, (941), 669 states have internal predecessors, (941), 50 states have call successors, (50), 9 states have call predecessors, (50), 9 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-24 09:19:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1041 transitions. [2024-10-24 09:19:54,199 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1041 transitions. Word has length 140 [2024-10-24 09:19:54,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:19:54,199 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 1041 transitions. [2024-10-24 09:19:54,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:19:54,199 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1041 transitions. [2024-10-24 09:19:54,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 09:19:54,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:19:54,201 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:19:54,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 09:19:54,201 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:19:54,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:19:54,202 INFO L85 PathProgramCache]: Analyzing trace with hash -316326619, now seen corresponding path program 1 times [2024-10-24 09:19:54,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:19:54,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033753094] [2024-10-24 09:19:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:19:54,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:19:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:58,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:19:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:58,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:19:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:58,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:19:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:58,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:19:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:58,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:19:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:58,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:19:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:58,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:19:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:58,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:19:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:58,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:19:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:19:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:19:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:19:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:19:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:19:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:19:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:19:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:19:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:19:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:19:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:19:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:19:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:19:59,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:19:59,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033753094] [2024-10-24 09:19:59,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033753094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:19:59,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:19:59,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 09:19:59,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276294364] [2024-10-24 09:19:59,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:19:59,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 09:19:59,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:19:59,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 09:19:59,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-10-24 09:19:59,042 INFO L87 Difference]: Start difference. First operand 726 states and 1041 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:20:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:20:02,048 INFO L93 Difference]: Finished difference Result 1226 states and 1730 transitions. [2024-10-24 09:20:02,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 09:20:02,049 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 09:20:02,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:20:02,053 INFO L225 Difference]: With dead ends: 1226 [2024-10-24 09:20:02,053 INFO L226 Difference]: Without dead ends: 893 [2024-10-24 09:20:02,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=234, Invalid=636, Unknown=0, NotChecked=0, Total=870 [2024-10-24 09:20:02,055 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 572 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 09:20:02,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 945 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 09:20:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2024-10-24 09:20:02,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 721. [2024-10-24 09:20:02,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 661 states have (on average 1.4130105900151286) internal successors, (934), 664 states have internal predecessors, (934), 50 states have call successors, (50), 9 states have call predecessors, (50), 9 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-24 09:20:02,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1034 transitions. [2024-10-24 09:20:02,104 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1034 transitions. Word has length 140 [2024-10-24 09:20:02,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:20:02,104 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1034 transitions. [2024-10-24 09:20:02,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:20:02,105 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1034 transitions. [2024-10-24 09:20:02,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 09:20:02,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:20:02,106 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:20:02,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 09:20:02,107 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:20:02,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:20:02,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1663941089, now seen corresponding path program 1 times [2024-10-24 09:20:02,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:20:02,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49456886] [2024-10-24 09:20:02,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:20:02,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:20:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:20:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:20:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:20:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:20:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:20:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:20:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:20:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:20:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:20:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:20:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:20:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:20:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:20:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:20:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:20:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:20:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:20:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:20:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:20:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:20:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:20:02,407 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:20:02,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:20:02,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49456886] [2024-10-24 09:20:02,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49456886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:20:02,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:20:02,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 09:20:02,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455040543] [2024-10-24 09:20:02,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:20:02,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 09:20:02,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:20:02,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 09:20:02,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 09:20:02,412 INFO L87 Difference]: Start difference. First operand 721 states and 1034 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:20:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:20:02,665 INFO L93 Difference]: Finished difference Result 1601 states and 2297 transitions. [2024-10-24 09:20:02,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 09:20:02,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 09:20:02,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:20:02,675 INFO L225 Difference]: With dead ends: 1601 [2024-10-24 09:20:02,676 INFO L226 Difference]: Without dead ends: 1216 [2024-10-24 09:20:02,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-24 09:20:02,678 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 260 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:20:02,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 655 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:20:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-10-24 09:20:02,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 896. [2024-10-24 09:20:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 801 states have (on average 1.3995006242197254) internal successors, (1121), 807 states have internal predecessors, (1121), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-24 09:20:02,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1281 transitions. [2024-10-24 09:20:02,743 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1281 transitions. Word has length 140 [2024-10-24 09:20:02,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:20:02,744 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1281 transitions. [2024-10-24 09:20:02,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 09:20:02,744 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1281 transitions. [2024-10-24 09:20:02,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 09:20:02,745 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:20:02,745 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:20:02,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 09:20:02,746 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:20:02,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:20:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash -913606939, now seen corresponding path program 1 times [2024-10-24 09:20:02,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:20:02,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669078981] [2024-10-24 09:20:02,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:20:02,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:20:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat