./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_fillercode_fillercodestructure_filler-pr-co_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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_fillercode_fillercodestructure_filler-pr-co_file-33.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 5c234e2fefe11c7ac0093946cc9cf5ef419837c81c25df397f2c3f9610af0164 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 09:57:45,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 09:57:46,059 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 09:57:46,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 09:57:46,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 09:57:46,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 09:57:46,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 09:57:46,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 09:57:46,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 09:57:46,102 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 09:57:46,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 09:57:46,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 09:57:46,104 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 09:57:46,104 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 09:57:46,104 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 09:57:46,105 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 09:57:46,105 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 09:57:46,106 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 09:57:46,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 09:57:46,106 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 09:57:46,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 09:57:46,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 09:57:46,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 09:57:46,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 09:57:46,108 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 09:57:46,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 09:57:46,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 09:57:46,109 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 09:57:46,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 09:57:46,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 09:57:46,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 09:57:46,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 09:57:46,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:57:46,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 09:57:46,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 09:57:46,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 09:57:46,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 09:57:46,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 09:57:46,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 09:57:46,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 09:57:46,121 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 09:57:46,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 09:57:46,122 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c234e2fefe11c7ac0093946cc9cf5ef419837c81c25df397f2c3f9610af0164 [2024-10-14 09:57:46,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 09:57:46,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 09:57:46,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 09:57:46,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 09:57:46,397 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 09:57:46,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i [2024-10-14 09:57:47,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 09:57:48,161 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 09:57:48,162 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i [2024-10-14 09:57:48,173 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63d86ddb9/7442d4bbcbbb44a08a6fa2f1ed3a5d5f/FLAG05534a953 [2024-10-14 09:57:48,523 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63d86ddb9/7442d4bbcbbb44a08a6fa2f1ed3a5d5f [2024-10-14 09:57:48,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 09:57:48,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 09:57:48,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 09:57:48,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 09:57:48,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 09:57:48,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:48,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d0ba08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48, skipping insertion in model container [2024-10-14 09:57:48,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:48,563 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 09:57:48,737 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_fillercode_fillercodestructure_filler-pr-co_file-33.i[919,932] [2024-10-14 09:57:48,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:57:48,866 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 09:57:48,884 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_fillercode_fillercodestructure_filler-pr-co_file-33.i[919,932] [2024-10-14 09:57:48,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:57:48,955 INFO L204 MainTranslator]: Completed translation [2024-10-14 09:57:48,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48 WrapperNode [2024-10-14 09:57:48,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 09:57:48,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 09:57:48,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 09:57:48,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 09:57:48,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:48,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,027 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 226 [2024-10-14 09:57:49,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 09:57:49,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 09:57:49,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 09:57:49,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 09:57:49,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,042 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,062 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]. [2024-10-14 09:57:49,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 09:57:49,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 09:57:49,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 09:57:49,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 09:57:49,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (1/1) ... [2024-10-14 09:57:49,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:57:49,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:57:49,145 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) [2024-10-14 09:57:49,152 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 [2024-10-14 09:57:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 09:57:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 09:57:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 09:57:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 09:57:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 09:57:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 09:57:49,303 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 09:57:49,305 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 09:57:49,779 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-14 09:57:49,780 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 09:57:49,825 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 09:57:49,826 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 09:57:49,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:57:49 BoogieIcfgContainer [2024-10-14 09:57:49,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 09:57:49,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 09:57:49,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 09:57:49,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 09:57:49,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:57:48" (1/3) ... [2024-10-14 09:57:49,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b79bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:57:49, skipping insertion in model container [2024-10-14 09:57:49,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48" (2/3) ... [2024-10-14 09:57:49,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b79bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:57:49, skipping insertion in model container [2024-10-14 09:57:49,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:57:49" (3/3) ... [2024-10-14 09:57:49,839 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i [2024-10-14 09:57:49,859 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 09:57:49,860 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 09:57:49,917 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 09:57:49,923 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;@50357e11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 09:57:49,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 09:57:49,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 58 states have (on average 1.4655172413793103) internal successors, (85), 59 states have internal predecessors, (85), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 09:57:49,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-14 09:57:49,945 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:57:49,946 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:57:49,947 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:57:49,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:57:49,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1000147417, now seen corresponding path program 1 times [2024-10-14 09:57:49,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:57:49,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607536757] [2024-10-14 09:57:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:57:49,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:57:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:57:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 09:57:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 09:57:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:57:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:57:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 09:57:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 09:57:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 09:57:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 09:57:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 09:57:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 09:57:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 09:57:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 09:57:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:57:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:57:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 09:57:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:57:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:57:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:57:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:57:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:57:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 09:57:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:57:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 09:57:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:57:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 09:57:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:57:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:57:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:57:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:57:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:57:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:57:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:57:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:57:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:50,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:57:50,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:57:50,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607536757] [2024-10-14 09:57:50,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607536757] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:57:50,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:57:50,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 09:57:50,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046944335] [2024-10-14 09:57:50,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:57:50,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 09:57:50,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:57:50,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 09:57:50,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:57:50,683 INFO L87 Difference]: Start difference. First operand has 95 states, 58 states have (on average 1.4655172413793103) internal successors, (85), 59 states have internal predecessors, (85), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-14 09:57:50,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:57:50,748 INFO L93 Difference]: Finished difference Result 185 states and 334 transitions. [2024-10-14 09:57:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 09:57:50,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 210 [2024-10-14 09:57:50,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:57:50,763 INFO L225 Difference]: With dead ends: 185 [2024-10-14 09:57:50,764 INFO L226 Difference]: Without dead ends: 91 [2024-10-14 09:57:50,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:57:50,773 INFO L432 NwaCegarLoop]: 137 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, 137 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 [2024-10-14 09:57:50,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:57:50,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-14 09:57:50,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-10-14 09:57:50,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 55 states have (on average 1.309090909090909) internal successors, (72), 55 states have internal predecessors, (72), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 09:57:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 140 transitions. [2024-10-14 09:57:50,836 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 140 transitions. Word has length 210 [2024-10-14 09:57:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:57:50,836 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 140 transitions. [2024-10-14 09:57:50,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-14 09:57:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 140 transitions. [2024-10-14 09:57:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-14 09:57:50,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:57:50,842 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:57:50,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 09:57:50,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:57:50,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:57:50,844 INFO L85 PathProgramCache]: Analyzing trace with hash -673442861, now seen corresponding path program 1 times [2024-10-14 09:57:50,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:57:50,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309336825] [2024-10-14 09:57:50,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:57:50,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:57:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:57:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 09:57:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 09:57:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:57:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:57:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 09:57:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 09:57:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 09:57:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 09:57:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 09:57:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 09:57:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 09:57:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 09:57:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:57:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:57:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 09:57:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:57:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:57:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:57:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:57:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:57:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 09:57:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:57:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 09:57:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:57:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 09:57:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:57:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:57:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:57:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:57:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:57:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:57:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:57:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:57:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:57:51,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:57:51,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309336825] [2024-10-14 09:57:51,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309336825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:57:51,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:57:51,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:57:51,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025754390] [2024-10-14 09:57:51,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:57:51,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:57:51,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:57:51,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:57:51,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:57:51,497 INFO L87 Difference]: Start difference. First operand 91 states and 140 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-14 09:57:51,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:57:51,615 INFO L93 Difference]: Finished difference Result 260 states and 404 transitions. [2024-10-14 09:57:51,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:57:51,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 210 [2024-10-14 09:57:51,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:57:51,623 INFO L225 Difference]: With dead ends: 260 [2024-10-14 09:57:51,623 INFO L226 Difference]: Without dead ends: 170 [2024-10-14 09:57:51,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:57:51,626 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 88 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 09:57:51,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 386 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 09:57:51,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-10-14 09:57:51,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2024-10-14 09:57:51,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 96 states have internal predecessors, (124), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-14 09:57:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 260 transitions. [2024-10-14 09:57:51,666 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 260 transitions. Word has length 210 [2024-10-14 09:57:51,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:57:51,669 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 260 transitions. [2024-10-14 09:57:51,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-14 09:57:51,670 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 260 transitions. [2024-10-14 09:57:51,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-10-14 09:57:51,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:57:51,674 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:57:51,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 09:57:51,674 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:57:51,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:57:51,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1752845607, now seen corresponding path program 1 times [2024-10-14 09:57:51,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:57:51,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88718778] [2024-10-14 09:57:51,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:57:51,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:57:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:57:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 09:57:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 09:57:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:57:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:57:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 09:57:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 09:57:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 09:57:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 09:57:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 09:57:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 09:57:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 09:57:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 09:57:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:57:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:57:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 09:57:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:57:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:57:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:57:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:57:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:57:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 09:57:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:57:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 09:57:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:57:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 09:57:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:57:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:57:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:57:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:57:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:57:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:57:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:57:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:57:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:57:52,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:57:52,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88718778] [2024-10-14 09:57:52,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88718778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:57:52,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:57:52,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:57:52,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975147071] [2024-10-14 09:57:52,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:57:52,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:57:52,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:57:52,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:57:52,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:57:52,676 INFO L87 Difference]: Start difference. First operand 167 states and 260 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:57:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:57:53,020 INFO L93 Difference]: Finished difference Result 294 states and 452 transitions. [2024-10-14 09:57:53,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:57:53,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 211 [2024-10-14 09:57:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:57:53,024 INFO L225 Difference]: With dead ends: 294 [2024-10-14 09:57:53,024 INFO L226 Difference]: Without dead ends: 187 [2024-10-14 09:57:53,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:57:53,027 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 89 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 09:57:53,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 351 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 09:57:53,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-14 09:57:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 173. [2024-10-14 09:57:53,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 102 states have internal predecessors, (131), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-14 09:57:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 267 transitions. [2024-10-14 09:57:53,074 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 267 transitions. Word has length 211 [2024-10-14 09:57:53,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:57:53,076 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 267 transitions. [2024-10-14 09:57:53,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:57:53,077 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 267 transitions. [2024-10-14 09:57:53,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-14 09:57:53,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:57:53,080 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:57:53,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 09:57:53,080 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:57:53,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:57:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash 237671372, now seen corresponding path program 1 times [2024-10-14 09:57:53,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:57:53,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443445378] [2024-10-14 09:57:53,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:57:53,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:57:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:57:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 09:57:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 09:57:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:57:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:57:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 09:57:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 09:57:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 09:57:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 09:57:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 09:57:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 09:57:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 09:57:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 09:57:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:57:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:57:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 09:57:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:57:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:57:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:57:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:57:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:57:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 09:57:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:57:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 09:57:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:57:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 09:57:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:57:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:57:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:57:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:57:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:57:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:57:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:57:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:57:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:53,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:57:53,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:57:53,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443445378] [2024-10-14 09:57:53,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443445378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:57:53,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:57:53,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:57:53,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611885280] [2024-10-14 09:57:53,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:57:53,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:57:53,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:57:53,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:57:53,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:57:53,535 INFO L87 Difference]: Start difference. First operand 173 states and 267 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:57:53,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:57:53,796 INFO L93 Difference]: Finished difference Result 295 states and 450 transitions. [2024-10-14 09:57:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:57:53,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 212 [2024-10-14 09:57:53,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:57:53,800 INFO L225 Difference]: With dead ends: 295 [2024-10-14 09:57:53,801 INFO L226 Difference]: Without dead ends: 182 [2024-10-14 09:57:53,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:57:53,802 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 86 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:57:53,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 361 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 09:57:53,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-10-14 09:57:53,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 174. [2024-10-14 09:57:53,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 103 states have internal predecessors, (131), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-14 09:57:53,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 267 transitions. [2024-10-14 09:57:53,857 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 267 transitions. Word has length 212 [2024-10-14 09:57:53,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:57:53,859 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 267 transitions. [2024-10-14 09:57:53,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:57:53,860 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 267 transitions. [2024-10-14 09:57:53,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-14 09:57:53,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:57:53,864 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:57:53,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 09:57:53,864 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:57:53,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:57:53,865 INFO L85 PathProgramCache]: Analyzing trace with hash -5045994, now seen corresponding path program 1 times [2024-10-14 09:57:53,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:57:53,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049932994] [2024-10-14 09:57:53,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:57:53,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:57:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:57:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 09:57:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 09:57:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:57:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:57:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 09:57:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 09:57:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 09:57:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 09:57:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 09:57:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 09:57:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 09:57:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 09:57:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:57:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:57:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 09:57:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:57:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:57:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:57:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:57:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:57:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 09:57:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:57:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 09:57:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:57:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 09:57:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:57:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:57:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:57:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:57:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:57:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:57:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:57:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:57:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:57:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:57:54,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:57:54,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049932994] [2024-10-14 09:57:54,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049932994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:57:54,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:57:54,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 09:57:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877723791] [2024-10-14 09:57:54,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:57:54,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 09:57:54,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:57:54,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 09:57:54,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:57:54,770 INFO L87 Difference]: Start difference. First operand 174 states and 267 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:57:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:57:55,134 INFO L93 Difference]: Finished difference Result 292 states and 447 transitions. [2024-10-14 09:57:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:57:55,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213 [2024-10-14 09:57:55,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:57:55,137 INFO L225 Difference]: With dead ends: 292 [2024-10-14 09:57:55,138 INFO L226 Difference]: Without dead ends: 183 [2024-10-14 09:57:55,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 09:57:55,139 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 80 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 09:57:55,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 403 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 09:57:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-10-14 09:57:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2024-10-14 09:57:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 103 states have internal predecessors, (130), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-14 09:57:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 266 transitions. [2024-10-14 09:57:55,169 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 266 transitions. Word has length 213 [2024-10-14 09:57:55,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:57:55,170 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 266 transitions. [2024-10-14 09:57:55,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:57:55,170 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 266 transitions. [2024-10-14 09:57:55,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-14 09:57:55,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:57:55,173 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:57:55,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 09:57:55,173 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:57:55,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:57:55,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1999190700, now seen corresponding path program 1 times [2024-10-14 09:57:55,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:57:55,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417513968] [2024-10-14 09:57:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:57:55,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:57:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:58:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 09:58:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 09:58:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:58:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:58:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 09:58:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 09:58:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 09:58:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 09:58:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 09:58:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 09:58:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 09:58:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 09:58:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:58:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:58:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 09:58:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:58:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:58:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:58:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:58:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:58:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 09:58:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:58:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 09:58:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:58:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 09:58:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:58:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:58:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:58:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:58:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:58:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:58:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:58:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:58:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:58:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:58:00,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:58:00,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417513968] [2024-10-14 09:58:00,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417513968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:58:00,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:58:00,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 09:58:00,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364772328] [2024-10-14 09:58:00,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:58:00,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 09:58:00,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:58:00,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 09:58:00,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 09:58:00,944 INFO L87 Difference]: Start difference. First operand 174 states and 266 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:58:03,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:58:03,171 INFO L93 Difference]: Finished difference Result 521 states and 774 transitions. [2024-10-14 09:58:03,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 09:58:03,172 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213 [2024-10-14 09:58:03,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:58:03,176 INFO L225 Difference]: With dead ends: 521 [2024-10-14 09:58:03,177 INFO L226 Difference]: Without dead ends: 421 [2024-10-14 09:58:03,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-10-14 09:58:03,179 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 585 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 09:58:03,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 961 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 09:58:03,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-10-14 09:58:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 301. [2024-10-14 09:58:03,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 194 states have (on average 1.2989690721649485) internal successors, (252), 194 states have internal predecessors, (252), 102 states have call successors, (102), 4 states have call predecessors, (102), 4 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-14 09:58:03,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 456 transitions. [2024-10-14 09:58:03,256 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 456 transitions. Word has length 213 [2024-10-14 09:58:03,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:58:03,257 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 456 transitions. [2024-10-14 09:58:03,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:58:03,258 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 456 transitions. [2024-10-14 09:58:03,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-14 09:58:03,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:58:03,265 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:58:03,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 09:58:03,266 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:58:03,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:58:03,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1298126122, now seen corresponding path program 1 times [2024-10-14 09:58:03,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:58:03,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298515685] [2024-10-14 09:58:03,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:58:03,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:58:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat