./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.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 c469b75cc3acec0afb4777ccbc446a0a894bfe2960322167d3fdb024eb8caf56 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 04:04:02,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 04:04:02,311 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 04:04:02,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 04:04:02,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 04:04:02,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 04:04:02,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 04:04:02,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 04:04:02,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 04:04:02,349 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 04:04:02,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 04:04:02,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 04:04:02,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 04:04:02,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 04:04:02,354 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 04:04:02,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 04:04:02,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 04:04:02,354 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 04:04:02,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 04:04:02,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 04:04:02,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 04:04:02,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 04:04:02,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 04:04:02,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 04:04:02,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 04:04:02,360 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 04:04:02,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 04:04:02,360 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 04:04:02,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 04:04:02,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 04:04:02,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 04:04:02,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 04:04:02,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 04:04:02,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 04:04:02,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 04:04:02,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 04:04:02,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 04:04:02,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 04:04:02,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 04:04:02,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 04:04:02,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 04:04:02,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 04:04:02,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c469b75cc3acec0afb4777ccbc446a0a894bfe2960322167d3fdb024eb8caf56 [2024-10-13 04:04:02,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 04:04:02,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 04:04:02,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 04:04:02,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 04:04:02,657 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 04:04:02,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i [2024-10-13 04:04:04,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 04:04:04,309 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 04:04:04,309 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i [2024-10-13 04:04:04,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d514282/5ee492d0b108471e90cd065427e354ec/FLAGf2c0559dc [2024-10-13 04:04:04,335 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d514282/5ee492d0b108471e90cd065427e354ec [2024-10-13 04:04:04,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 04:04:04,338 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 04:04:04,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 04:04:04,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 04:04:04,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 04:04:04,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1861c5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04, skipping insertion in model container [2024-10-13 04:04:04,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,377 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 04:04:04,568 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i[916,929] [2024-10-13 04:04:04,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 04:04:04,695 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 04:04:04,707 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i[916,929] [2024-10-13 04:04:04,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 04:04:04,770 INFO L204 MainTranslator]: Completed translation [2024-10-13 04:04:04,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04 WrapperNode [2024-10-13 04:04:04,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 04:04:04,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 04:04:04,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 04:04:04,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 04:04:04,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,849 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 310 [2024-10-13 04:04:04,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 04:04:04,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 04:04:04,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 04:04:04,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 04:04:04,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,866 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,899 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 04:04:04,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,964 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 04:04:04,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 04:04:04,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 04:04:04,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 04:04:04,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (1/1) ... [2024-10-13 04:04:04,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 04:04:04,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 04:04:05,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 04:04:05,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 04:04:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 04:04:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 04:04:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 04:04:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 04:04:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 04:04:05,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 04:04:05,159 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 04:04:05,161 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 04:04:05,795 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-10-13 04:04:05,796 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 04:04:05,832 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 04:04:05,833 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 04:04:05,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:04:05 BoogieIcfgContainer [2024-10-13 04:04:05,833 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 04:04:05,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 04:04:05,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 04:04:05,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 04:04:05,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:04:04" (1/3) ... [2024-10-13 04:04:05,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cfc80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:04:05, skipping insertion in model container [2024-10-13 04:04:05,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:04:04" (2/3) ... [2024-10-13 04:04:05,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cfc80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:04:05, skipping insertion in model container [2024-10-13 04:04:05,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:04:05" (3/3) ... [2024-10-13 04:04:05,843 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-92.i [2024-10-13 04:04:05,858 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 04:04:05,858 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 04:04:05,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 04:04:05,935 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;@156c7bdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 04:04:05,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 04:04:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 96 states have (on average 1.53125) internal successors, (147), 97 states have internal predecessors, (147), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-13 04:04:05,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 04:04:05,956 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:04:05,958 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:04:05,959 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:04:05,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:04:05,965 INFO L85 PathProgramCache]: Analyzing trace with hash 853163340, now seen corresponding path program 1 times [2024-10-13 04:04:05,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:04:05,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254836006] [2024-10-13 04:04:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:04:05,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:04:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 04:04:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 04:04:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 04:04:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 04:04:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 04:04:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 04:04:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 04:04:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 04:04:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 04:04:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 04:04:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 04:04:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 04:04:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 04:04:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 04:04:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 04:04:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 04:04:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 04:04:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 04:04:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 04:04:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 04:04:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 04:04:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 04:04:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-13 04:04:06,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 04:04:06,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254836006] [2024-10-13 04:04:06,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254836006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 04:04:06,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 04:04:06,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 04:04:06,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075542846] [2024-10-13 04:04:06,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 04:04:06,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 04:04:06,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 04:04:06,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 04:04:06,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 04:04:06,558 INFO L87 Difference]: Start difference. First operand has 121 states, 96 states have (on average 1.53125) internal successors, (147), 97 states have internal predecessors, (147), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) 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, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 04:04:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 04:04:06,612 INFO L93 Difference]: Finished difference Result 239 states and 402 transitions. [2024-10-13 04:04:06,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 04:04:06,616 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, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 155 [2024-10-13 04:04:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 04:04:06,625 INFO L225 Difference]: With dead ends: 239 [2024-10-13 04:04:06,625 INFO L226 Difference]: Without dead ends: 119 [2024-10-13 04:04:06,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 04:04:06,635 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 04:04:06,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 04:04:06,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-13 04:04:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-10-13 04:04:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 95 states have (on average 1.4947368421052631) internal successors, (142), 95 states have internal predecessors, (142), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-13 04:04:06,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 186 transitions. [2024-10-13 04:04:06,677 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 186 transitions. Word has length 155 [2024-10-13 04:04:06,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 04:04:06,678 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 186 transitions. [2024-10-13 04:04:06,678 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, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 04:04:06,678 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 186 transitions. [2024-10-13 04:04:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 04:04:06,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:04:06,682 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:04:06,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 04:04:06,683 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:04:06,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:04:06,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1242582584, now seen corresponding path program 1 times [2024-10-13 04:04:06,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:04:06,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118994210] [2024-10-13 04:04:06,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:04:06,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:04:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 04:04:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 04:04:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 04:04:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 04:04:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 04:04:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 04:04:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 04:04:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 04:04:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 04:04:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 04:04:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 04:04:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 04:04:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 04:04:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 04:04:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 04:04:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 04:04:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 04:04:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 04:04:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 04:04:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 04:04:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 04:04:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 04:04:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-13 04:04:07,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 04:04:07,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118994210] [2024-10-13 04:04:07,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118994210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 04:04:07,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 04:04:07,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 04:04:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815761803] [2024-10-13 04:04:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 04:04:07,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 04:04:07,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 04:04:07,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 04:04:07,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 04:04:07,361 INFO L87 Difference]: Start difference. First operand 119 states and 186 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, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:07,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 04:04:07,488 INFO L93 Difference]: Finished difference Result 355 states and 556 transitions. [2024-10-13 04:04:07,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 04:04:07,490 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, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155 [2024-10-13 04:04:07,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 04:04:07,496 INFO L225 Difference]: With dead ends: 355 [2024-10-13 04:04:07,496 INFO L226 Difference]: Without dead ends: 237 [2024-10-13 04:04:07,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 04:04:07,498 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 134 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 04:04:07,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 416 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 04:04:07,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-10-13 04:04:07,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2024-10-13 04:04:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 188 states have internal predecessors, (280), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-13 04:04:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 368 transitions. [2024-10-13 04:04:07,545 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 368 transitions. Word has length 155 [2024-10-13 04:04:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 04:04:07,546 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 368 transitions. [2024-10-13 04:04:07,546 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, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 368 transitions. [2024-10-13 04:04:07,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-13 04:04:07,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:04:07,553 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:04:07,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 04:04:07,553 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:04:07,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:04:07,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1165276112, now seen corresponding path program 1 times [2024-10-13 04:04:07,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:04:07,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558989538] [2024-10-13 04:04:07,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:04:07,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:04:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 04:04:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 04:04:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 04:04:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 04:04:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 04:04:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 04:04:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 04:04:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 04:04:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 04:04:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 04:04:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 04:04:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 04:04:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 04:04:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 04:04:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 04:04:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 04:04:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 04:04:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 04:04:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 04:04:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 04:04:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 04:04:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 04:04:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:08,145 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-13 04:04:08,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 04:04:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558989538] [2024-10-13 04:04:08,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558989538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 04:04:08,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 04:04:08,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 04:04:08,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630264271] [2024-10-13 04:04:08,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 04:04:08,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 04:04:08,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 04:04:08,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 04:04:08,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 04:04:08,148 INFO L87 Difference]: Start difference. First operand 235 states and 368 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:08,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 04:04:08,639 INFO L93 Difference]: Finished difference Result 1105 states and 1715 transitions. [2024-10-13 04:04:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 04:04:08,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-13 04:04:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 04:04:08,648 INFO L225 Difference]: With dead ends: 1105 [2024-10-13 04:04:08,649 INFO L226 Difference]: Without dead ends: 871 [2024-10-13 04:04:08,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 04:04:08,653 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 562 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 04:04:08,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 800 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 04:04:08,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-10-13 04:04:08,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 821. [2024-10-13 04:04:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 686 states have (on average 1.4868804664723032) internal successors, (1020), 688 states have internal predecessors, (1020), 128 states have call successors, (128), 6 states have call predecessors, (128), 6 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-13 04:04:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1276 transitions. [2024-10-13 04:04:08,746 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1276 transitions. Word has length 156 [2024-10-13 04:04:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 04:04:08,746 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1276 transitions. [2024-10-13 04:04:08,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:08,747 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1276 transitions. [2024-10-13 04:04:08,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-13 04:04:08,750 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:04:08,750 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:04:08,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 04:04:08,750 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:04:08,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:04:08,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1324252850, now seen corresponding path program 1 times [2024-10-13 04:04:08,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:04:08,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562935078] [2024-10-13 04:04:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:04:08,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:04:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 04:04:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 04:04:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 04:04:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 04:04:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 04:04:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 04:04:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 04:04:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 04:04:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 04:04:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 04:04:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 04:04:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 04:04:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 04:04:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 04:04:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 04:04:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 04:04:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 04:04:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 04:04:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 04:04:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 04:04:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 04:04:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 04:04:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-13 04:04:09,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 04:04:09,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562935078] [2024-10-13 04:04:09,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562935078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 04:04:09,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 04:04:09,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 04:04:09,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281597371] [2024-10-13 04:04:09,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 04:04:09,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 04:04:09,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 04:04:09,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 04:04:09,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 04:04:09,389 INFO L87 Difference]: Start difference. First operand 821 states and 1276 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:10,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 04:04:10,335 INFO L93 Difference]: Finished difference Result 1858 states and 2873 transitions. [2024-10-13 04:04:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 04:04:10,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-13 04:04:10,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 04:04:10,346 INFO L225 Difference]: With dead ends: 1858 [2024-10-13 04:04:10,346 INFO L226 Difference]: Without dead ends: 1447 [2024-10-13 04:04:10,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-13 04:04:10,348 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 1301 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 04:04:10,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 983 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 04:04:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-10-13 04:04:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 927. [2024-10-13 04:04:10,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 792 states have (on average 1.5025252525252526) internal successors, (1190), 794 states have internal predecessors, (1190), 128 states have call successors, (128), 6 states have call predecessors, (128), 6 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-13 04:04:10,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1446 transitions. [2024-10-13 04:04:10,439 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1446 transitions. Word has length 156 [2024-10-13 04:04:10,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 04:04:10,440 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1446 transitions. [2024-10-13 04:04:10,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:10,440 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1446 transitions. [2024-10-13 04:04:10,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-13 04:04:10,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:04:10,442 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:04:10,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 04:04:10,443 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:04:10,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:04:10,443 INFO L85 PathProgramCache]: Analyzing trace with hash -505961346, now seen corresponding path program 1 times [2024-10-13 04:04:10,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:04:10,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570375110] [2024-10-13 04:04:10,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:04:10,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:04:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 04:04:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 04:04:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 04:04:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 04:04:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 04:04:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 04:04:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 04:04:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 04:04:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 04:04:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 04:04:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 04:04:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 04:04:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 04:04:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 04:04:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 04:04:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 04:04:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 04:04:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 04:04:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 04:04:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 04:04:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 04:04:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 04:04:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-13 04:04:33,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 04:04:33,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570375110] [2024-10-13 04:04:33,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570375110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 04:04:33,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 04:04:33,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 04:04:33,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767379381] [2024-10-13 04:04:33,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 04:04:33,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 04:04:33,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 04:04:33,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 04:04:33,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-13 04:04:33,900 INFO L87 Difference]: Start difference. First operand 927 states and 1446 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 04:04:39,620 INFO L93 Difference]: Finished difference Result 3710 states and 5729 transitions. [2024-10-13 04:04:39,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 04:04:39,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-13 04:04:39,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 04:04:39,635 INFO L225 Difference]: With dead ends: 3710 [2024-10-13 04:04:39,635 INFO L226 Difference]: Without dead ends: 2784 [2024-10-13 04:04:39,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-10-13 04:04:39,641 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 656 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-10-13 04:04:39,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 554 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-10-13 04:04:39,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2024-10-13 04:04:39,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1274. [2024-10-13 04:04:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1139 states have (on average 1.5320456540825285) internal successors, (1745), 1141 states have internal predecessors, (1745), 128 states have call successors, (128), 6 states have call predecessors, (128), 6 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-13 04:04:39,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 2001 transitions. [2024-10-13 04:04:39,719 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 2001 transitions. Word has length 156 [2024-10-13 04:04:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 04:04:39,720 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 2001 transitions. [2024-10-13 04:04:39,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 2001 transitions. [2024-10-13 04:04:39,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-13 04:04:39,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:04:39,724 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:04:39,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 04:04:39,725 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:04:39,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:04:39,726 INFO L85 PathProgramCache]: Analyzing trace with hash -83259520, now seen corresponding path program 1 times [2024-10-13 04:04:39,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:04:39,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439880170] [2024-10-13 04:04:39,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:04:39,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:04:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 04:04:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 04:04:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 04:04:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 04:04:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 04:04:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 04:04:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 04:04:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 04:04:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 04:04:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 04:04:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 04:04:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 04:04:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 04:04:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 04:04:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 04:04:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 04:04:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 04:04:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 04:04:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 04:04:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 04:04:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 04:04:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 04:04:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:04:43,491 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-13 04:04:43,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 04:04:43,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439880170] [2024-10-13 04:04:43,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439880170] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 04:04:43,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 04:04:43,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 04:04:43,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668767109] [2024-10-13 04:04:43,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 04:04:43,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 04:04:43,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 04:04:43,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 04:04:43,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-13 04:04:43,495 INFO L87 Difference]: Start difference. First operand 1274 states and 2001 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 04:04:48,195 INFO L93 Difference]: Finished difference Result 3731 states and 5802 transitions. [2024-10-13 04:04:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 04:04:48,197 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-13 04:04:48,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 04:04:48,208 INFO L225 Difference]: With dead ends: 3731 [2024-10-13 04:04:48,208 INFO L226 Difference]: Without dead ends: 2458 [2024-10-13 04:04:48,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-13 04:04:48,215 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 390 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-13 04:04:48,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 770 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-13 04:04:48,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2024-10-13 04:04:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 1274. [2024-10-13 04:04:48,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1139 states have (on average 1.5320456540825285) internal successors, (1745), 1141 states have internal predecessors, (1745), 128 states have call successors, (128), 6 states have call predecessors, (128), 6 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-13 04:04:48,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 2001 transitions. [2024-10-13 04:04:48,295 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 2001 transitions. Word has length 156 [2024-10-13 04:04:48,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 04:04:48,295 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 2001 transitions. [2024-10-13 04:04:48,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:04:48,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 2001 transitions. [2024-10-13 04:04:48,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-13 04:04:48,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:04:48,298 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:04:48,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 04:04:48,298 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:04:48,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:04:48,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2060264830, now seen corresponding path program 1 times [2024-10-13 04:04:48,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:04:48,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903995873] [2024-10-13 04:04:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:04:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:04:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 04:05:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 04:05:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 04:05:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 04:05:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 04:05:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 04:05:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 04:05:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 04:05:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 04:05:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 04:05:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 04:05:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 04:05:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 04:05:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 04:05:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 04:05:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 04:05:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 04:05:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 04:05:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 04:05:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 04:05:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 04:05:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 04:05:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-13 04:05:13,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 04:05:13,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903995873] [2024-10-13 04:05:13,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903995873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 04:05:13,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 04:05:13,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 04:05:13,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771340134] [2024-10-13 04:05:13,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 04:05:13,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 04:05:13,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 04:05:13,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 04:05:13,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-13 04:05:13,166 INFO L87 Difference]: Start difference. First operand 1274 states and 2001 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:05:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 04:05:16,291 INFO L93 Difference]: Finished difference Result 3731 states and 5802 transitions. [2024-10-13 04:05:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 04:05:16,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-13 04:05:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 04:05:16,302 INFO L225 Difference]: With dead ends: 3731 [2024-10-13 04:05:16,302 INFO L226 Difference]: Without dead ends: 2458 [2024-10-13 04:05:16,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-13 04:05:16,306 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 406 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-13 04:05:16,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 711 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-13 04:05:16,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2024-10-13 04:05:16,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 1281. [2024-10-13 04:05:16,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1146 states have (on average 1.5349040139616057) internal successors, (1759), 1148 states have internal predecessors, (1759), 128 states have call successors, (128), 6 states have call predecessors, (128), 6 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-13 04:05:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2015 transitions. [2024-10-13 04:05:16,375 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2015 transitions. Word has length 156 [2024-10-13 04:05:16,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 04:05:16,376 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 2015 transitions. [2024-10-13 04:05:16,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:05:16,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2015 transitions. [2024-10-13 04:05:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-13 04:05:16,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:05:16,378 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:05:16,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 04:05:16,379 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:05:16,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:05:16,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1812000640, now seen corresponding path program 1 times [2024-10-13 04:05:16,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:05:16,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001632434] [2024-10-13 04:05:16,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:05:16,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:05:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 04:05:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 04:05:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 04:05:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 04:05:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 04:05:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 04:05:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 04:05:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 04:05:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 04:05:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 04:05:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 04:05:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 04:05:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 04:05:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 04:05:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 04:05:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 04:05:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 04:05:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 04:05:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 04:05:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 04:05:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 04:05:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 04:05:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 04:05:16,622 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-13 04:05:16,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 04:05:16,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001632434] [2024-10-13 04:05:16,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001632434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 04:05:16,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 04:05:16,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 04:05:16,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010231563] [2024-10-13 04:05:16,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 04:05:16,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 04:05:16,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 04:05:16,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 04:05:16,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 04:05:16,624 INFO L87 Difference]: Start difference. First operand 1281 states and 2015 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:05:16,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 04:05:16,917 INFO L93 Difference]: Finished difference Result 5477 states and 8617 transitions. [2024-10-13 04:05:16,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 04:05:16,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-13 04:05:16,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 04:05:16,940 INFO L225 Difference]: With dead ends: 5477 [2024-10-13 04:05:16,941 INFO L226 Difference]: Without dead ends: 4197 [2024-10-13 04:05:16,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-13 04:05:16,947 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 461 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 04:05:16,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 918 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 04:05:16,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2024-10-13 04:05:17,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 3687. [2024-10-13 04:05:17,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 3370 states have (on average 1.5391691394658753) internal successors, (5187), 3380 states have internal predecessors, (5187), 298 states have call successors, (298), 18 states have call predecessors, (298), 18 states have return successors, (298), 288 states have call predecessors, (298), 298 states have call successors, (298) [2024-10-13 04:05:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5783 transitions. [2024-10-13 04:05:17,102 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5783 transitions. Word has length 156 [2024-10-13 04:05:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 04:05:17,103 INFO L471 AbstractCegarLoop]: Abstraction has 3687 states and 5783 transitions. [2024-10-13 04:05:17,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-13 04:05:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5783 transitions. [2024-10-13 04:05:17,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 04:05:17,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 04:05:17,107 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 04:05:17,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 04:05:17,107 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 04:05:17,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 04:05:17,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1523181090, now seen corresponding path program 1 times [2024-10-13 04:05:17,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 04:05:17,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360762654] [2024-10-13 04:05:17,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 04:05:17,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 04:05:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat