./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.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 18f661507baa99a6860677d13bda352b5068a9ab896ed00822695643614eba74 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 07:05:12,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 07:05:12,290 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 07:05:12,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 07:05:12,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 07:05:12,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 07:05:12,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 07:05:12,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 07:05:12,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 07:05:12,331 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 07:05:12,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 07:05:12,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 07:05:12,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 07:05:12,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 07:05:12,336 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 07:05:12,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 07:05:12,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 07:05:12,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 07:05:12,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 07:05:12,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 07:05:12,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 07:05:12,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 07:05:12,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 07:05:12,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 07:05:12,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 07:05:12,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 07:05:12,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 07:05:12,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 07:05:12,341 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 07:05:12,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 07:05:12,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 07:05:12,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 07:05:12,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 07:05:12,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 07:05:12,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 07:05:12,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 07:05:12,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 07:05:12,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 07:05:12,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 07:05:12,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 07:05:12,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 07:05:12,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 07:05:12,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18f661507baa99a6860677d13bda352b5068a9ab896ed00822695643614eba74 [2024-11-10 07:05:12,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 07:05:12,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 07:05:12,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 07:05:12,684 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 07:05:12,684 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 07:05:12,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i [2024-11-10 07:05:14,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 07:05:14,470 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 07:05:14,471 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i [2024-11-10 07:05:14,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817a5dd90/26e6f3af62bd4d5380be1dfad2999465/FLAG0b453be1e [2024-11-10 07:05:14,504 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817a5dd90/26e6f3af62bd4d5380be1dfad2999465 [2024-11-10 07:05:14,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 07:05:14,508 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 07:05:14,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 07:05:14,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 07:05:14,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 07:05:14,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:05:14" (1/1) ... [2024-11-10 07:05:14,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ecd5589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:14, skipping insertion in model container [2024-11-10 07:05:14,519 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:05:14" (1/1) ... [2024-11-10 07:05:14,555 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 07:05:14,728 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i[916,929] [2024-11-10 07:05:14,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 07:05:14,904 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 07:05:14,918 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i[916,929] [2024-11-10 07:05:14,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 07:05:15,023 INFO L204 MainTranslator]: Completed translation [2024-11-10 07:05:15,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15 WrapperNode [2024-11-10 07:05:15,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 07:05:15,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 07:05:15,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 07:05:15,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 07:05:15,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,117 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 261 [2024-11-10 07:05:15,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 07:05:15,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 07:05:15,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 07:05:15,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 07:05:15,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,201 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]. [2024-11-10 07:05:15,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,230 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 07:05:15,265 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 07:05:15,266 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 07:05:15,266 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 07:05:15,267 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2024-11-10 07:05:15,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 07:05:15,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 07:05:15,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 07:05:15,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 07:05:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 07:05:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 07:05:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 07:05:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 07:05:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 07:05:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 07:05:15,480 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 07:05:15,482 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 07:05:16,161 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L167: havoc property_#t~ite23#1;havoc property_#t~bitwise20#1;havoc property_#t~ite22#1;havoc property_#t~bitwise21#1;havoc property_#t~short24#1;havoc property_#t~bitwise25#1;havoc property_#t~bitwise26#1;havoc property_#t~short27#1; [2024-11-10 07:05:16,218 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-10 07:05:16,219 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 07:05:16,258 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 07:05:16,262 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 07:05:16,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:05:16 BoogieIcfgContainer [2024-11-10 07:05:16,263 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 07:05:16,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 07:05:16,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 07:05:16,272 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 07:05:16,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:05:14" (1/3) ... [2024-11-10 07:05:16,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b16c7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:05:16, skipping insertion in model container [2024-11-10 07:05:16,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (2/3) ... [2024-11-10 07:05:16,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b16c7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:05:16, skipping insertion in model container [2024-11-10 07:05:16,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:05:16" (3/3) ... [2024-11-10 07:05:16,277 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-59.i [2024-11-10 07:05:16,298 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 07:05:16,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 07:05:16,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 07:05:16,369 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;@2417e679, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 07:05:16,369 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 07:05:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 89 states have (on average 1.5056179775280898) internal successors, (134), 90 states have internal predecessors, (134), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-10 07:05:16,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-10 07:05:16,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:16,410 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:16,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:16,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:16,417 INFO L85 PathProgramCache]: Analyzing trace with hash -737593358, now seen corresponding path program 1 times [2024-11-10 07:05:16,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:16,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760395548] [2024-11-10 07:05:16,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:16,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:16,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:16,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760395548] [2024-11-10 07:05:16,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760395548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:16,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:16,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 07:05:16,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629990026] [2024-11-10 07:05:16,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:16,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 07:05:16,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:16,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 07:05:16,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 07:05:16,918 INFO L87 Difference]: Start difference. First operand has 113 states, 89 states have (on average 1.5056179775280898) internal successors, (134), 90 states have internal predecessors, (134), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-10 07:05:16,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:16,970 INFO L93 Difference]: Finished difference Result 222 states and 369 transitions. [2024-11-10 07:05:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 07:05:16,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 150 [2024-11-10 07:05:16,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:16,981 INFO L225 Difference]: With dead ends: 222 [2024-11-10 07:05:16,982 INFO L226 Difference]: Without dead ends: 108 [2024-11-10 07:05:16,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 07:05:16,990 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:16,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 07:05:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-10 07:05:17,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-10 07:05:17,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 85 states have (on average 1.4705882352941178) internal successors, (125), 85 states have internal predecessors, (125), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-10 07:05:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 167 transitions. [2024-11-10 07:05:17,059 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 167 transitions. Word has length 150 [2024-11-10 07:05:17,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:17,060 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 167 transitions. [2024-11-10 07:05:17,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-10 07:05:17,061 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 167 transitions. [2024-11-10 07:05:17,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-10 07:05:17,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:17,066 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:17,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 07:05:17,067 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:17,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:17,068 INFO L85 PathProgramCache]: Analyzing trace with hash -203219409, now seen corresponding path program 1 times [2024-11-10 07:05:17,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:17,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687339476] [2024-11-10 07:05:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:17,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,444 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:17,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:17,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687339476] [2024-11-10 07:05:17,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687339476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:17,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:17,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 07:05:17,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363983581] [2024-11-10 07:05:17,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:17,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 07:05:17,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:17,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 07:05:17,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 07:05:17,454 INFO L87 Difference]: Start difference. First operand 108 states and 167 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:17,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:17,595 INFO L93 Difference]: Finished difference Result 315 states and 489 transitions. [2024-11-10 07:05:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 07:05:17,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 150 [2024-11-10 07:05:17,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:17,600 INFO L225 Difference]: With dead ends: 315 [2024-11-10 07:05:17,600 INFO L226 Difference]: Without dead ends: 210 [2024-11-10 07:05:17,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 07:05:17,602 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 146 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:17,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 283 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 07:05:17,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-10 07:05:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2024-11-10 07:05:17,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 162 states have (on average 1.4320987654320987) internal successors, (232), 162 states have internal predecessors, (232), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-10 07:05:17,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 316 transitions. [2024-11-10 07:05:17,629 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 316 transitions. Word has length 150 [2024-11-10 07:05:17,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:17,630 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 316 transitions. [2024-11-10 07:05:17,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:17,630 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 316 transitions. [2024-11-10 07:05:17,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-10 07:05:17,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:17,633 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:17,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 07:05:17,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:17,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:17,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1681116517, now seen corresponding path program 1 times [2024-11-10 07:05:17,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:17,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810244021] [2024-11-10 07:05:17,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:17,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:17,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:18,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:18,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810244021] [2024-11-10 07:05:18,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810244021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:18,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:18,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 07:05:18,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717485059] [2024-11-10 07:05:18,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:18,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 07:05:18,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:18,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 07:05:18,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 07:05:18,026 INFO L87 Difference]: Start difference. First operand 207 states and 316 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:18,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:18,141 INFO L93 Difference]: Finished difference Result 411 states and 629 transitions. [2024-11-10 07:05:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 07:05:18,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 151 [2024-11-10 07:05:18,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:18,145 INFO L225 Difference]: With dead ends: 411 [2024-11-10 07:05:18,146 INFO L226 Difference]: Without dead ends: 207 [2024-11-10 07:05:18,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 07:05:18,149 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 2 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:18,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 281 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 07:05:18,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-10 07:05:18,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-10 07:05:18,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 162 states have (on average 1.4197530864197532) internal successors, (230), 162 states have internal predecessors, (230), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-10 07:05:18,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 314 transitions. [2024-11-10 07:05:18,191 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 314 transitions. Word has length 151 [2024-11-10 07:05:18,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:18,192 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 314 transitions. [2024-11-10 07:05:18,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:18,192 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 314 transitions. [2024-11-10 07:05:18,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-10 07:05:18,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:18,200 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:18,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 07:05:18,200 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:18,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:18,202 INFO L85 PathProgramCache]: Analyzing trace with hash -831622049, now seen corresponding path program 1 times [2024-11-10 07:05:18,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:18,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673865006] [2024-11-10 07:05:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:18,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:18,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:18,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673865006] [2024-11-10 07:05:18,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673865006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:18,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:18,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 07:05:18,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647656611] [2024-11-10 07:05:18,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:18,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 07:05:18,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:18,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 07:05:18,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 07:05:18,766 INFO L87 Difference]: Start difference. First operand 207 states and 314 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:19,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:19,197 INFO L93 Difference]: Finished difference Result 525 states and 796 transitions. [2024-11-10 07:05:19,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 07:05:19,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 152 [2024-11-10 07:05:19,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:19,203 INFO L225 Difference]: With dead ends: 525 [2024-11-10 07:05:19,205 INFO L226 Difference]: Without dead ends: 321 [2024-11-10 07:05:19,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 07:05:19,210 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 115 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:19,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 497 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 07:05:19,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-10 07:05:19,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 317. [2024-11-10 07:05:19,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 250 states have (on average 1.408) internal successors, (352), 250 states have internal predecessors, (352), 63 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-10 07:05:19,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2024-11-10 07:05:19,242 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 152 [2024-11-10 07:05:19,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:19,242 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2024-11-10 07:05:19,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:19,243 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2024-11-10 07:05:19,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-10 07:05:19,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:19,246 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:19,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 07:05:19,246 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:19,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:19,247 INFO L85 PathProgramCache]: Analyzing trace with hash -14638544, now seen corresponding path program 1 times [2024-11-10 07:05:19,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:19,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929910990] [2024-11-10 07:05:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:19,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:19,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:19,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929910990] [2024-11-10 07:05:19,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929910990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:19,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:19,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 07:05:19,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070411785] [2024-11-10 07:05:19,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:19,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 07:05:19,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:19,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 07:05:19,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 07:05:19,583 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:19,645 INFO L93 Difference]: Finished difference Result 637 states and 962 transitions. [2024-11-10 07:05:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 07:05:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 152 [2024-11-10 07:05:19,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:19,651 INFO L225 Difference]: With dead ends: 637 [2024-11-10 07:05:19,651 INFO L226 Difference]: Without dead ends: 323 [2024-11-10 07:05:19,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 07:05:19,655 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:19,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 458 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 07:05:19,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-10 07:05:19,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-10 07:05:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 256 states have (on average 1.3984375) internal successors, (358), 256 states have internal predecessors, (358), 63 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-10 07:05:19,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 484 transitions. [2024-11-10 07:05:19,696 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 484 transitions. Word has length 152 [2024-11-10 07:05:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:19,697 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 484 transitions. [2024-11-10 07:05:19,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:19,697 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 484 transitions. [2024-11-10 07:05:19,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-10 07:05:19,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:19,716 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:19,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 07:05:19,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:19,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:19,718 INFO L85 PathProgramCache]: Analyzing trace with hash -211152049, now seen corresponding path program 1 times [2024-11-10 07:05:19,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:19,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011139662] [2024-11-10 07:05:19,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:19,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:20,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:20,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011139662] [2024-11-10 07:05:20,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011139662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:20,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:20,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 07:05:20,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586634100] [2024-11-10 07:05:20,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:20,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 07:05:20,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:20,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 07:05:20,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 07:05:20,696 INFO L87 Difference]: Start difference. First operand 323 states and 484 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:21,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:21,076 INFO L93 Difference]: Finished difference Result 846 states and 1266 transitions. [2024-11-10 07:05:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 07:05:21,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 152 [2024-11-10 07:05:21,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:21,080 INFO L225 Difference]: With dead ends: 846 [2024-11-10 07:05:21,081 INFO L226 Difference]: Without dead ends: 526 [2024-11-10 07:05:21,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 07:05:21,083 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 81 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:21,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 318 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 07:05:21,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-10 07:05:21,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 445. [2024-11-10 07:05:21,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 378 states have (on average 1.439153439153439) internal successors, (544), 378 states have internal predecessors, (544), 63 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-10 07:05:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 670 transitions. [2024-11-10 07:05:21,121 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 670 transitions. Word has length 152 [2024-11-10 07:05:21,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:21,123 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 670 transitions. [2024-11-10 07:05:21,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 670 transitions. [2024-11-10 07:05:21,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-10 07:05:21,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:21,127 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:21,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 07:05:21,127 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:21,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:21,128 INFO L85 PathProgramCache]: Analyzing trace with hash 481949648, now seen corresponding path program 1 times [2024-11-10 07:05:21,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:21,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696792096] [2024-11-10 07:05:21,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:21,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:21,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:21,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696792096] [2024-11-10 07:05:21,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696792096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:21,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:21,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 07:05:21,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14502025] [2024-11-10 07:05:21,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:21,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 07:05:21,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:21,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 07:05:21,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 07:05:21,458 INFO L87 Difference]: Start difference. First operand 445 states and 670 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:21,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:21,685 INFO L93 Difference]: Finished difference Result 1387 states and 2075 transitions. [2024-11-10 07:05:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 07:05:21,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 152 [2024-11-10 07:05:21,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:21,692 INFO L225 Difference]: With dead ends: 1387 [2024-11-10 07:05:21,692 INFO L226 Difference]: Without dead ends: 945 [2024-11-10 07:05:21,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 07:05:21,695 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 222 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:21,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 523 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 07:05:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-10 07:05:21,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 762. [2024-11-10 07:05:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 629 states have (on average 1.4165341812400636) internal successors, (891), 629 states have internal predecessors, (891), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-10 07:05:21,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1143 transitions. [2024-11-10 07:05:21,776 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1143 transitions. Word has length 152 [2024-11-10 07:05:21,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:21,776 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 1143 transitions. [2024-11-10 07:05:21,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1143 transitions. [2024-11-10 07:05:21,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-10 07:05:21,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:21,779 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:21,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 07:05:21,779 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:21,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:21,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1877530042, now seen corresponding path program 1 times [2024-11-10 07:05:21,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:21,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046272245] [2024-11-10 07:05:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:21,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:24,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:24,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046272245] [2024-11-10 07:05:24,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046272245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:24,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:24,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 07:05:24,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959260272] [2024-11-10 07:05:24,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:24,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 07:05:24,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:24,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 07:05:24,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2024-11-10 07:05:24,720 INFO L87 Difference]: Start difference. First operand 762 states and 1143 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:25,953 INFO L93 Difference]: Finished difference Result 1679 states and 2516 transitions. [2024-11-10 07:05:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 07:05:25,954 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 157 [2024-11-10 07:05:25,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:25,959 INFO L225 Difference]: With dead ends: 1679 [2024-11-10 07:05:25,959 INFO L226 Difference]: Without dead ends: 920 [2024-11-10 07:05:25,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2024-11-10 07:05:25,962 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 417 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:25,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 824 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 07:05:25,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-10 07:05:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 820. [2024-11-10 07:05:26,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 687 states have (on average 1.3944687045123727) internal successors, (958), 687 states have internal predecessors, (958), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-10 07:05:26,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1210 transitions. [2024-11-10 07:05:26,020 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1210 transitions. Word has length 157 [2024-11-10 07:05:26,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:26,021 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1210 transitions. [2024-11-10 07:05:26,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:26,022 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1210 transitions. [2024-11-10 07:05:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-10 07:05:26,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:26,024 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:26,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 07:05:26,024 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:26,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:26,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1033058171, now seen corresponding path program 1 times [2024-11-10 07:05:26,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:26,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340958207] [2024-11-10 07:05:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:26,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:28,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:28,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340958207] [2024-11-10 07:05:28,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340958207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:28,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:28,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-10 07:05:28,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920593986] [2024-11-10 07:05:28,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:28,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 07:05:28,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:28,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 07:05:28,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-10 07:05:28,126 INFO L87 Difference]: Start difference. First operand 820 states and 1210 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:30,361 INFO L93 Difference]: Finished difference Result 2069 states and 3048 transitions. [2024-11-10 07:05:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 07:05:30,362 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 157 [2024-11-10 07:05:30,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:30,372 INFO L225 Difference]: With dead ends: 2069 [2024-11-10 07:05:30,373 INFO L226 Difference]: Without dead ends: 1714 [2024-11-10 07:05:30,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2024-11-10 07:05:30,376 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 570 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:30,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1155 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 07:05:30,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2024-11-10 07:05:30,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1630. [2024-11-10 07:05:30,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1365 states have (on average 1.3956043956043955) internal successors, (1905), 1365 states have internal predecessors, (1905), 252 states have call successors, (252), 12 states have call predecessors, (252), 12 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-10 07:05:30,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2409 transitions. [2024-11-10 07:05:30,488 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2409 transitions. Word has length 157 [2024-11-10 07:05:30,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:30,488 INFO L471 AbstractCegarLoop]: Abstraction has 1630 states and 2409 transitions. [2024-11-10 07:05:30,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2409 transitions. [2024-11-10 07:05:30,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-10 07:05:30,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:30,491 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:30,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 07:05:30,491 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:30,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:30,492 INFO L85 PathProgramCache]: Analyzing trace with hash -163551325, now seen corresponding path program 1 times [2024-11-10 07:05:30,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:30,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562021818] [2024-11-10 07:05:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:30,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:30,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:30,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562021818] [2024-11-10 07:05:30,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562021818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:30,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:30,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 07:05:30,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662971794] [2024-11-10 07:05:30,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:30,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 07:05:30,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:30,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 07:05:30,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 07:05:30,633 INFO L87 Difference]: Start difference. First operand 1630 states and 2409 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:30,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:30,921 INFO L93 Difference]: Finished difference Result 4616 states and 6853 transitions. [2024-11-10 07:05:30,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 07:05:30,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 158 [2024-11-10 07:05:30,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:30,937 INFO L225 Difference]: With dead ends: 4616 [2024-11-10 07:05:30,937 INFO L226 Difference]: Without dead ends: 2989 [2024-11-10 07:05:30,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 07:05:30,944 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 120 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:30,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 287 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 07:05:30,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2024-11-10 07:05:31,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 2386. [2024-11-10 07:05:31,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2386 states, 2121 states have (on average 1.3932107496463932) internal successors, (2955), 2121 states have internal predecessors, (2955), 252 states have call successors, (252), 12 states have call predecessors, (252), 12 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-10 07:05:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 3459 transitions. [2024-11-10 07:05:31,093 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 3459 transitions. Word has length 158 [2024-11-10 07:05:31,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:31,093 INFO L471 AbstractCegarLoop]: Abstraction has 2386 states and 3459 transitions. [2024-11-10 07:05:31,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 3459 transitions. [2024-11-10 07:05:31,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-10 07:05:31,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:31,096 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:31,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 07:05:31,097 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:31,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:31,097 INFO L85 PathProgramCache]: Analyzing trace with hash 533517409, now seen corresponding path program 1 times [2024-11-10 07:05:31,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:31,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670976783] [2024-11-10 07:05:31,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:31,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:33,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:33,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670976783] [2024-11-10 07:05:33,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670976783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:33,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:33,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-10 07:05:33,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548380108] [2024-11-10 07:05:33,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:33,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 07:05:33,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:33,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 07:05:33,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-10 07:05:33,506 INFO L87 Difference]: Start difference. First operand 2386 states and 3459 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:35,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:35,538 INFO L93 Difference]: Finished difference Result 4730 states and 6806 transitions. [2024-11-10 07:05:35,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 07:05:35,540 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 158 [2024-11-10 07:05:35,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:35,556 INFO L225 Difference]: With dead ends: 4730 [2024-11-10 07:05:35,556 INFO L226 Difference]: Without dead ends: 3065 [2024-11-10 07:05:35,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2024-11-10 07:05:35,562 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 552 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:35,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1013 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 07:05:35,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2024-11-10 07:05:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 2566. [2024-11-10 07:05:35,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2301 states have (on average 1.3859191655801826) internal successors, (3189), 2301 states have internal predecessors, (3189), 252 states have call successors, (252), 12 states have call predecessors, (252), 12 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-10 07:05:35,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3693 transitions. [2024-11-10 07:05:35,732 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3693 transitions. Word has length 158 [2024-11-10 07:05:35,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:35,732 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3693 transitions. [2024-11-10 07:05:35,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:35,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3693 transitions. [2024-11-10 07:05:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-10 07:05:35,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:35,737 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:35,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 07:05:35,737 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:35,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:35,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1757036335, now seen corresponding path program 1 times [2024-11-10 07:05:35,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:35,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475210598] [2024-11-10 07:05:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:35,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:35,886 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:35,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:35,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475210598] [2024-11-10 07:05:35,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475210598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:35,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:35,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 07:05:35,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243683948] [2024-11-10 07:05:35,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:35,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 07:05:35,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:35,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 07:05:35,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 07:05:35,889 INFO L87 Difference]: Start difference. First operand 2566 states and 3693 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:36,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:36,161 INFO L93 Difference]: Finished difference Result 6313 states and 9165 transitions. [2024-11-10 07:05:36,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 07:05:36,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 158 [2024-11-10 07:05:36,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:36,179 INFO L225 Difference]: With dead ends: 6313 [2024-11-10 07:05:36,180 INFO L226 Difference]: Without dead ends: 3750 [2024-11-10 07:05:36,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 07:05:36,188 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 134 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:36,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 525 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 07:05:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2024-11-10 07:05:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3005. [2024-11-10 07:05:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 2740 states have (on average 1.404014598540146) internal successors, (3847), 2740 states have internal predecessors, (3847), 252 states have call successors, (252), 12 states have call predecessors, (252), 12 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-10 07:05:36,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 4351 transitions. [2024-11-10 07:05:36,378 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 4351 transitions. Word has length 158 [2024-11-10 07:05:36,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:36,379 INFO L471 AbstractCegarLoop]: Abstraction has 3005 states and 4351 transitions. [2024-11-10 07:05:36,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:36,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 4351 transitions. [2024-11-10 07:05:36,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-10 07:05:36,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:36,383 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:36,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 07:05:36,383 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:36,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:36,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1621682802, now seen corresponding path program 1 times [2024-11-10 07:05:36,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:36,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876590041] [2024-11-10 07:05:36,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:36,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:36,514 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:36,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:36,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876590041] [2024-11-10 07:05:36,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876590041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:36,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:36,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 07:05:36,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299455877] [2024-11-10 07:05:36,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:36,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 07:05:36,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:36,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 07:05:36,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 07:05:36,517 INFO L87 Difference]: Start difference. First operand 3005 states and 4351 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:36,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:36,933 INFO L93 Difference]: Finished difference Result 7057 states and 10189 transitions. [2024-11-10 07:05:36,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 07:05:36,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 159 [2024-11-10 07:05:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:36,955 INFO L225 Difference]: With dead ends: 7057 [2024-11-10 07:05:36,955 INFO L226 Difference]: Without dead ends: 4055 [2024-11-10 07:05:36,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 07:05:36,966 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 118 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:36,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 519 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 07:05:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4055 states. [2024-11-10 07:05:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4055 to 3259. [2024-11-10 07:05:37,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 2994 states have (on average 1.3937875751503006) internal successors, (4173), 2994 states have internal predecessors, (4173), 252 states have call successors, (252), 12 states have call predecessors, (252), 12 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-10 07:05:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 4677 transitions. [2024-11-10 07:05:37,177 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 4677 transitions. Word has length 159 [2024-11-10 07:05:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:37,178 INFO L471 AbstractCegarLoop]: Abstraction has 3259 states and 4677 transitions. [2024-11-10 07:05:37,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 4677 transitions. [2024-11-10 07:05:37,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-10 07:05:37,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:37,183 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:37,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 07:05:37,183 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:37,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:37,184 INFO L85 PathProgramCache]: Analyzing trace with hash -935871146, now seen corresponding path program 1 times [2024-11-10 07:05:37,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:37,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394736915] [2024-11-10 07:05:37,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:37,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:41,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:41,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394736915] [2024-11-10 07:05:41,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394736915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:41,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:41,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 07:05:41,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529627265] [2024-11-10 07:05:41,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:41,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 07:05:41,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:41,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 07:05:41,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-10 07:05:41,252 INFO L87 Difference]: Start difference. First operand 3259 states and 4677 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:42,276 INFO L93 Difference]: Finished difference Result 6353 states and 9087 transitions. [2024-11-10 07:05:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 07:05:42,277 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 159 [2024-11-10 07:05:42,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:42,295 INFO L225 Difference]: With dead ends: 6353 [2024-11-10 07:05:42,295 INFO L226 Difference]: Without dead ends: 4211 [2024-11-10 07:05:42,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-10 07:05:42,302 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 263 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:42,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 546 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 07:05:42,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2024-11-10 07:05:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 4069. [2024-11-10 07:05:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4069 states, 3796 states have (on average 1.3975237091675448) internal successors, (5305), 3796 states have internal predecessors, (5305), 252 states have call successors, (252), 20 states have call predecessors, (252), 20 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-10 07:05:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5809 transitions. [2024-11-10 07:05:42,520 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5809 transitions. Word has length 159 [2024-11-10 07:05:42,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:42,521 INFO L471 AbstractCegarLoop]: Abstraction has 4069 states and 5809 transitions. [2024-11-10 07:05:42,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:42,522 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5809 transitions. [2024-11-10 07:05:42,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-10 07:05:42,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:42,526 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:42,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 07:05:42,526 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:42,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:42,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1405076288, now seen corresponding path program 1 times [2024-11-10 07:05:42,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:42,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107141996] [2024-11-10 07:05:42,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:42,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:44,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:44,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107141996] [2024-11-10 07:05:44,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107141996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:44,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:44,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-10 07:05:44,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799160735] [2024-11-10 07:05:44,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:44,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 07:05:44,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:44,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 07:05:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-10 07:05:44,181 INFO L87 Difference]: Start difference. First operand 4069 states and 5809 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:45,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:45,964 INFO L93 Difference]: Finished difference Result 6624 states and 9411 transitions. [2024-11-10 07:05:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 07:05:45,966 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 159 [2024-11-10 07:05:45,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:45,984 INFO L225 Difference]: With dead ends: 6624 [2024-11-10 07:05:45,985 INFO L226 Difference]: Without dead ends: 4634 [2024-11-10 07:05:45,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2024-11-10 07:05:45,990 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 609 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:45,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 825 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 07:05:45,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4634 states. [2024-11-10 07:05:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4634 to 4011. [2024-11-10 07:05:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4011 states, 3738 states have (on average 1.3986088817549491) internal successors, (5228), 3738 states have internal predecessors, (5228), 252 states have call successors, (252), 20 states have call predecessors, (252), 20 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-10 07:05:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4011 states to 4011 states and 5732 transitions. [2024-11-10 07:05:46,181 INFO L78 Accepts]: Start accepts. Automaton has 4011 states and 5732 transitions. Word has length 159 [2024-11-10 07:05:46,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:46,182 INFO L471 AbstractCegarLoop]: Abstraction has 4011 states and 5732 transitions. [2024-11-10 07:05:46,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:46,182 INFO L276 IsEmpty]: Start isEmpty. Operand 4011 states and 5732 transitions. [2024-11-10 07:05:46,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-10 07:05:46,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:46,187 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:46,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 07:05:46,187 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:46,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:46,188 INFO L85 PathProgramCache]: Analyzing trace with hash 401745236, now seen corresponding path program 1 times [2024-11-10 07:05:46,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:46,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127445985] [2024-11-10 07:05:46,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:46,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:05:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:05:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:05:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:05:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:05:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:05:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:05:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:05:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:05:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:05:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:05:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:05:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:05:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:05:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:05:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:05:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:05:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:05:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:05:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:05:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:05:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:05:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:05:48,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:05:48,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127445985] [2024-11-10 07:05:48,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127445985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:05:48,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:05:48,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 07:05:48,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134189799] [2024-11-10 07:05:48,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:05:48,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 07:05:48,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:05:48,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 07:05:48,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-10 07:05:48,146 INFO L87 Difference]: Start difference. First operand 4011 states and 5732 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:48,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:05:48,973 INFO L93 Difference]: Finished difference Result 7247 states and 10365 transitions. [2024-11-10 07:05:48,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 07:05:48,973 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 160 [2024-11-10 07:05:48,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:05:48,985 INFO L225 Difference]: With dead ends: 7247 [2024-11-10 07:05:48,985 INFO L226 Difference]: Without dead ends: 4549 [2024-11-10 07:05:48,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-10 07:05:48,993 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 326 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 07:05:48,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 706 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 07:05:48,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4549 states. [2024-11-10 07:05:49,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4549 to 2061. [2024-11-10 07:05:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2061 states, 1924 states have (on average 1.3970893970893972) internal successors, (2688), 1924 states have internal predecessors, (2688), 126 states have call successors, (126), 10 states have call predecessors, (126), 10 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-10 07:05:49,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 2940 transitions. [2024-11-10 07:05:49,117 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 2940 transitions. Word has length 160 [2024-11-10 07:05:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:05:49,118 INFO L471 AbstractCegarLoop]: Abstraction has 2061 states and 2940 transitions. [2024-11-10 07:05:49,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:05:49,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 2940 transitions. [2024-11-10 07:05:49,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-10 07:05:49,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:05:49,121 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:05:49,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 07:05:49,121 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:05:49,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:05:49,123 INFO L85 PathProgramCache]: Analyzing trace with hash -971551418, now seen corresponding path program 1 times [2024-11-10 07:05:49,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:05:49,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009145420] [2024-11-10 07:05:49,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:05:49,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:05:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:06:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:06:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:06:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:06:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:06:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:06:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:06:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:06:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:06:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:06:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:06:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:06:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:06:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:06:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:06:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:06:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:06:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:06:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:06:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:06:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:06:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:06:12,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:06:12,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009145420] [2024-11-10 07:06:12,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009145420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:06:12,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:06:12,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-10 07:06:12,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182502585] [2024-11-10 07:06:12,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:06:12,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 07:06:12,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:06:12,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 07:06:12,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-10 07:06:12,417 INFO L87 Difference]: Start difference. First operand 2061 states and 2940 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:06:14,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:06:14,191 INFO L93 Difference]: Finished difference Result 4769 states and 6753 transitions. [2024-11-10 07:06:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 07:06:14,192 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 160 [2024-11-10 07:06:14,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:06:14,215 INFO L225 Difference]: With dead ends: 4769 [2024-11-10 07:06:14,216 INFO L226 Difference]: Without dead ends: 4766 [2024-11-10 07:06:14,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-11-10 07:06:14,220 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 428 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-10 07:06:14,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1122 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-10 07:06:14,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4766 states. [2024-11-10 07:06:14,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4766 to 4726. [2024-11-10 07:06:14,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4726 states, 4455 states have (on average 1.3946127946127946) internal successors, (6213), 4463 states have internal predecessors, (6213), 248 states have call successors, (248), 22 states have call predecessors, (248), 22 states have return successors, (248), 240 states have call predecessors, (248), 248 states have call successors, (248) [2024-11-10 07:06:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4726 states to 4726 states and 6709 transitions. [2024-11-10 07:06:14,416 INFO L78 Accepts]: Start accepts. Automaton has 4726 states and 6709 transitions. Word has length 160 [2024-11-10 07:06:14,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:06:14,417 INFO L471 AbstractCegarLoop]: Abstraction has 4726 states and 6709 transitions. [2024-11-10 07:06:14,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:06:14,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4726 states and 6709 transitions. [2024-11-10 07:06:14,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-10 07:06:14,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:06:14,421 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:06:14,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 07:06:14,422 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:06:14,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:06:14,422 INFO L85 PathProgramCache]: Analyzing trace with hash 515877018, now seen corresponding path program 1 times [2024-11-10 07:06:14,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:06:14,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491355119] [2024-11-10 07:06:14,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:06:14,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:06:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:06:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:06:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:06:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:06:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:06:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:06:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:06:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:06:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:06:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:06:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:06:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:06:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:06:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:06:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:06:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:06:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:06:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:06:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:06:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:06:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:06:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:06:14,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:06:14,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491355119] [2024-11-10 07:06:14,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491355119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:06:14,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:06:14,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 07:06:14,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979673304] [2024-11-10 07:06:14,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:06:14,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 07:06:14,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:06:14,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 07:06:14,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 07:06:14,660 INFO L87 Difference]: Start difference. First operand 4726 states and 6709 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:06:15,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:06:15,375 INFO L93 Difference]: Finished difference Result 10425 states and 14811 transitions. [2024-11-10 07:06:15,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 07:06:15,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 160 [2024-11-10 07:06:15,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:06:15,403 INFO L225 Difference]: With dead ends: 10425 [2024-11-10 07:06:15,403 INFO L226 Difference]: Without dead ends: 5682 [2024-11-10 07:06:15,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-10 07:06:15,415 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 229 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 07:06:15,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 637 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 07:06:15,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5682 states. [2024-11-10 07:06:15,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5682 to 3811. [2024-11-10 07:06:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3811 states, 3540 states have (on average 1.3548022598870058) internal successors, (4796), 3548 states have internal predecessors, (4796), 248 states have call successors, (248), 22 states have call predecessors, (248), 22 states have return successors, (248), 240 states have call predecessors, (248), 248 states have call successors, (248) [2024-11-10 07:06:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 5292 transitions. [2024-11-10 07:06:15,659 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 5292 transitions. Word has length 160 [2024-11-10 07:06:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:06:15,659 INFO L471 AbstractCegarLoop]: Abstraction has 3811 states and 5292 transitions. [2024-11-10 07:06:15,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:06:15,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 5292 transitions. [2024-11-10 07:06:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-10 07:06:15,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:06:15,663 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:06:15,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 07:06:15,663 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:06:15,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:06:15,664 INFO L85 PathProgramCache]: Analyzing trace with hash -514376109, now seen corresponding path program 1 times [2024-11-10 07:06:15,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:06:15,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928535371] [2024-11-10 07:06:15,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:06:15,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:06:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:06:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:06:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:06:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:06:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:06:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:06:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:06:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:06:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:06:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:06:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:06:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:06:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:06:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:06:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:06:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:06:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:06:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:06:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:06:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:06:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:06:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:06:18,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:06:18,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928535371] [2024-11-10 07:06:18,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928535371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:06:18,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:06:18,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 07:06:18,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745739544] [2024-11-10 07:06:18,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:06:18,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 07:06:18,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:06:18,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 07:06:18,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-10 07:06:18,770 INFO L87 Difference]: Start difference. First operand 3811 states and 5292 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:06:19,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:06:19,988 INFO L93 Difference]: Finished difference Result 7110 states and 9889 transitions. [2024-11-10 07:06:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 07:06:19,989 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 161 [2024-11-10 07:06:19,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:06:20,001 INFO L225 Difference]: With dead ends: 7110 [2024-11-10 07:06:20,001 INFO L226 Difference]: Without dead ends: 4433 [2024-11-10 07:06:20,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-10 07:06:20,008 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 157 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 07:06:20,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 649 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 07:06:20,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2024-11-10 07:06:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4143. [2024-11-10 07:06:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 3872 states have (on average 1.350206611570248) internal successors, (5228), 3880 states have internal predecessors, (5228), 248 states have call successors, (248), 22 states have call predecessors, (248), 22 states have return successors, (248), 240 states have call predecessors, (248), 248 states have call successors, (248) [2024-11-10 07:06:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5724 transitions. [2024-11-10 07:06:20,245 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5724 transitions. Word has length 161 [2024-11-10 07:06:20,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:06:20,246 INFO L471 AbstractCegarLoop]: Abstraction has 4143 states and 5724 transitions. [2024-11-10 07:06:20,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-10 07:06:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5724 transitions. [2024-11-10 07:06:20,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-10 07:06:20,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:06:20,249 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:06:20,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 07:06:20,250 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:06:20,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:06:20,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1770487346, now seen corresponding path program 1 times [2024-11-10 07:06:20,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:06:20,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101344796] [2024-11-10 07:06:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:06:20,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:06:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:06:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:06:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:06:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 07:06:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 07:06:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 07:06:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 07:06:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 07:06:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 07:06:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 07:06:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 07:06:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 07:06:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 07:06:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 07:06:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 07:06:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 07:06:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 07:06:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 07:06:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 07:06:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 07:06:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 07:06:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:06:24,139 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-10 07:06:24,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:06:24,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101344796] [2024-11-10 07:06:24,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101344796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:06:24,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:06:24,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 07:06:24,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12942209] [2024-11-10 07:06:24,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:06:24,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 07:06:24,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:06:24,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 07:06:24,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-10 07:06:24,143 INFO L87 Difference]: Start difference. First operand 4143 states and 5724 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)