./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-pe-ci_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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-pe-ci_file-59.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d60c41fdcdaad38dc038867a7c9992a8ab8f45b7eb867ab47c18062a0edd8d7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 04:04:34,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 04:04:34,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 04:04:34,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 04:04:34,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 04:04:34,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 04:04:34,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 04:04:34,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 04:04:34,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 04:04:34,336 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 04:04:34,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 04:04:34,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 04:04:34,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 04:04:34,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 04:04:34,339 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 04:04:34,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 04:04:34,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 04:04:34,343 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 04:04:34,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 04:04:34,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 04:04:34,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 04:04:34,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 04:04:34,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 04:04:34,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 04:04:34,348 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 04:04:34,349 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 04:04:34,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 04:04:34,349 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 04:04:34,349 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 04:04:34,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 04:04:34,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 04:04:34,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 04:04:34,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 04:04:34,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 04:04:34,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 04:04:34,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 04:04:34,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 04:04:34,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 04:04:34,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 04:04:34,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 04:04:34,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 04:04:34,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 04:04:34,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d60c41fdcdaad38dc038867a7c9992a8ab8f45b7eb867ab47c18062a0edd8d7 [2024-11-20 04:04:34,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 04:04:34,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 04:04:34,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 04:04:34,668 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 04:04:34,668 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 04:04:34,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i [2024-11-20 04:04:36,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 04:04:36,445 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 04:04:36,446 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i [2024-11-20 04:04:36,459 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b39271ee/66c2dc7b0dd84d9a966ad084aad0083b/FLAG12f319e35 [2024-11-20 04:04:36,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b39271ee/66c2dc7b0dd84d9a966ad084aad0083b [2024-11-20 04:04:36,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 04:04:36,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 04:04:36,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 04:04:36,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 04:04:36,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 04:04:36,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:04:36" (1/1) ... [2024-11-20 04:04:36,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2b9c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:36, skipping insertion in model container [2024-11-20 04:04:36,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:04:36" (1/1) ... [2024-11-20 04:04:36,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 04:04:37,047 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i[919,932] [2024-11-20 04:04:37,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 04:04:37,150 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 04:04:37,163 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i[919,932] [2024-11-20 04:04:37,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 04:04:37,253 INFO L204 MainTranslator]: Completed translation [2024-11-20 04:04:37,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37 WrapperNode [2024-11-20 04:04:37,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 04:04:37,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 04:04:37,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 04:04:37,255 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 04:04:37,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,327 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 195 [2024-11-20 04:04:37,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 04:04:37,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 04:04:37,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 04:04:37,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 04:04:37,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,355 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,389 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 04:04:37,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 04:04:37,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 04:04:37,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 04:04:37,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 04:04:37,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (1/1) ... [2024-11-20 04:04:37,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 04:04:37,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:04:37,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 04:04:37,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 04:04:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 04:04:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 04:04:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 04:04:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 04:04:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 04:04:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 04:04:37,623 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 04:04:37,627 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 04:04:38,108 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-20 04:04:38,108 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 04:04:38,127 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 04:04:38,127 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 04:04:38,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:04:38 BoogieIcfgContainer [2024-11-20 04:04:38,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 04:04:38,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 04:04:38,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 04:04:38,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 04:04:38,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:04:36" (1/3) ... [2024-11-20 04:04:38,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dbe8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:04:38, skipping insertion in model container [2024-11-20 04:04:38,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:04:37" (2/3) ... [2024-11-20 04:04:38,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dbe8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:04:38, skipping insertion in model container [2024-11-20 04:04:38,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:04:38" (3/3) ... [2024-11-20 04:04:38,142 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i [2024-11-20 04:04:38,160 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 04:04:38,161 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 04:04:38,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 04:04:38,244 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;@3117d068, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 04:04:38,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 04:04:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 58 states have (on average 1.5344827586206897) internal successors, (89), 59 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 04:04:38,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-20 04:04:38,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:38,268 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:38,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:38,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1794805451, now seen corresponding path program 1 times [2024-11-20 04:04:38,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813448218] [2024-11-20 04:04:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:38,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:04:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:04:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 04:04:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:04:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 04:04:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:04:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 04:04:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:04:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:04:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:04:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:04:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:04:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:04:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:04:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 04:04:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:04:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 04:04:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 04:04:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 04:04:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 04:04:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:38,835 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 04:04:38,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:04:38,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813448218] [2024-11-20 04:04:38,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813448218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:04:38,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:04:38,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 04:04:38,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350498459] [2024-11-20 04:04:38,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:04:38,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 04:04:38,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:04:38,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 04:04:38,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 04:04:38,871 INFO L87 Difference]: Start difference. First operand has 81 states, 58 states have (on average 1.5344827586206897) internal successors, (89), 59 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 04:04:38,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:04:38,905 INFO L93 Difference]: Finished difference Result 152 states and 266 transitions. [2024-11-20 04:04:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 04:04:38,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 136 [2024-11-20 04:04:38,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:04:38,918 INFO L225 Difference]: With dead ends: 152 [2024-11-20 04:04:38,919 INFO L226 Difference]: Without dead ends: 74 [2024-11-20 04:04:38,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 04:04:38,926 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:04:38,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:04:38,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-20 04:04:38,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-20 04:04:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 04:04:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 113 transitions. [2024-11-20 04:04:38,968 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 113 transitions. Word has length 136 [2024-11-20 04:04:38,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:04:38,968 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 113 transitions. [2024-11-20 04:04:38,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 04:04:38,969 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 113 transitions. [2024-11-20 04:04:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-20 04:04:38,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:38,974 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:38,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 04:04:38,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:38,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:38,975 INFO L85 PathProgramCache]: Analyzing trace with hash 800608829, now seen corresponding path program 1 times [2024-11-20 04:04:38,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:38,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333657702] [2024-11-20 04:04:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:38,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:04:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:04:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 04:04:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:04:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 04:04:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:04:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 04:04:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:04:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:04:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:04:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:04:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:04:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:04:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:04:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 04:04:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:04:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 04:04:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 04:04:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 04:04:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 04:04:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 04:04:39,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:04:39,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333657702] [2024-11-20 04:04:39,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333657702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:04:39,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:04:39,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 04:04:39,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977758608] [2024-11-20 04:04:39,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:04:39,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 04:04:39,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:04:39,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 04:04:39,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 04:04:39,406 INFO L87 Difference]: Start difference. First operand 74 states and 113 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 04:04:39,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:04:39,466 INFO L93 Difference]: Finished difference Result 145 states and 223 transitions. [2024-11-20 04:04:39,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 04:04:39,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2024-11-20 04:04:39,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:04:39,475 INFO L225 Difference]: With dead ends: 145 [2024-11-20 04:04:39,477 INFO L226 Difference]: Without dead ends: 74 [2024-11-20 04:04:39,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 04:04:39,479 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:04:39,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:04:39,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-20 04:04:39,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-20 04:04:39,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 52 states have internal predecessors, (72), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 04:04:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 112 transitions. [2024-11-20 04:04:39,505 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 112 transitions. Word has length 136 [2024-11-20 04:04:39,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:04:39,507 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 112 transitions. [2024-11-20 04:04:39,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 04:04:39,507 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 112 transitions. [2024-11-20 04:04:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-20 04:04:39,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:39,512 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:39,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 04:04:39,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:39,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:39,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1719351105, now seen corresponding path program 1 times [2024-11-20 04:04:39,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:39,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168309803] [2024-11-20 04:04:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:39,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:04:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:04:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 04:04:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:04:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 04:04:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:04:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 04:04:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:39,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:04:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:04:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:04:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:04:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:04:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:04:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:04:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 04:04:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:04:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 04:04:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 04:04:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 04:04:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 04:04:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,077 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 04:04:40,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:04:40,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168309803] [2024-11-20 04:04:40,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168309803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:04:40,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:04:40,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 04:04:40,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235285747] [2024-11-20 04:04:40,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:04:40,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 04:04:40,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:04:40,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 04:04:40,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 04:04:40,081 INFO L87 Difference]: Start difference. First operand 74 states and 112 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 04:04:40,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:04:40,274 INFO L93 Difference]: Finished difference Result 217 states and 331 transitions. [2024-11-20 04:04:40,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 04:04:40,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2024-11-20 04:04:40,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:04:40,279 INFO L225 Difference]: With dead ends: 217 [2024-11-20 04:04:40,280 INFO L226 Difference]: Without dead ends: 146 [2024-11-20 04:04:40,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 04:04:40,281 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 78 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 04:04:40,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 320 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 04:04:40,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-20 04:04:40,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 112. [2024-11-20 04:04:40,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 04:04:40,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2024-11-20 04:04:40,308 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 136 [2024-11-20 04:04:40,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:04:40,310 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2024-11-20 04:04:40,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 04:04:40,310 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2024-11-20 04:04:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 04:04:40,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:40,313 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:40,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 04:04:40,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:40,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:40,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1153210380, now seen corresponding path program 1 times [2024-11-20 04:04:40,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:40,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821523515] [2024-11-20 04:04:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:40,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:04:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:04:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 04:04:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:04:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 04:04:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:04:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 04:04:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:04:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:04:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:04:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:04:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:04:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:04:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:04:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 04:04:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:04:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 04:04:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 04:04:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 04:04:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 04:04:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 04:04:40,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:04:40,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821523515] [2024-11-20 04:04:40,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821523515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:04:40,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:04:40,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 04:04:40,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747050000] [2024-11-20 04:04:40,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:04:40,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 04:04:40,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:04:40,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 04:04:40,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 04:04:40,904 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 04:04:41,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:04:41,222 INFO L93 Difference]: Finished difference Result 249 states and 377 transitions. [2024-11-20 04:04:41,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 04:04:41,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2024-11-20 04:04:41,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:04:41,226 INFO L225 Difference]: With dead ends: 249 [2024-11-20 04:04:41,226 INFO L226 Difference]: Without dead ends: 178 [2024-11-20 04:04:41,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 04:04:41,227 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 141 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 04:04:41,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 394 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 04:04:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-20 04:04:41,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 151. [2024-11-20 04:04:41,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 107 states have (on average 1.4299065420560748) internal successors, (153), 107 states have internal predecessors, (153), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 04:04:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 233 transitions. [2024-11-20 04:04:41,247 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 233 transitions. Word has length 137 [2024-11-20 04:04:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:04:41,247 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 233 transitions. [2024-11-20 04:04:41,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 04:04:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 233 transitions. [2024-11-20 04:04:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 04:04:41,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:41,250 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:41,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 04:04:41,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:41,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:41,251 INFO L85 PathProgramCache]: Analyzing trace with hash 335561930, now seen corresponding path program 1 times [2024-11-20 04:04:41,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:41,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815902220] [2024-11-20 04:04:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:41,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:04:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:04:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 04:04:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:04:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 04:04:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:04:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 04:04:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:04:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:04:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:04:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:04:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:04:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:04:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:04:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 04:04:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:04:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 04:04:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 04:04:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 04:04:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 04:04:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:41,551 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 04:04:41,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:04:41,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815902220] [2024-11-20 04:04:41,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815902220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:04:41,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:04:41,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 04:04:41,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051918962] [2024-11-20 04:04:41,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:04:41,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 04:04:41,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:04:41,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 04:04:41,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 04:04:41,554 INFO L87 Difference]: Start difference. First operand 151 states and 233 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 04:04:41,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:04:41,693 INFO L93 Difference]: Finished difference Result 354 states and 549 transitions. [2024-11-20 04:04:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 04:04:41,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2024-11-20 04:04:41,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:04:41,696 INFO L225 Difference]: With dead ends: 354 [2024-11-20 04:04:41,697 INFO L226 Difference]: Without dead ends: 265 [2024-11-20 04:04:41,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 04:04:41,699 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 117 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 04:04:41,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 342 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 04:04:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-20 04:04:41,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 238. [2024-11-20 04:04:41,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 173 states have (on average 1.4219653179190752) internal successors, (246), 173 states have internal predecessors, (246), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 04:04:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 366 transitions. [2024-11-20 04:04:41,756 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 366 transitions. Word has length 137 [2024-11-20 04:04:41,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:04:41,756 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 366 transitions. [2024-11-20 04:04:41,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 04:04:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 366 transitions. [2024-11-20 04:04:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-20 04:04:41,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:41,759 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:41,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 04:04:41,761 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:41,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:41,761 INFO L85 PathProgramCache]: Analyzing trace with hash 559253906, now seen corresponding path program 1 times [2024-11-20 04:04:41,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:41,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879242482] [2024-11-20 04:04:41,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:41,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:04:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:04:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 04:04:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:04:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 04:04:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:04:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 04:04:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:04:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:04:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:04:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:04:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:04:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:04:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:04:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 04:04:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:04:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 04:04:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 04:04:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 04:04:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 04:04:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 04:04:42,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:04:42,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879242482] [2024-11-20 04:04:42,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879242482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 04:04:42,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020630234] [2024-11-20 04:04:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:42,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 04:04:42,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:04:42,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 04:04:42,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 04:04:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:42,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 04:04:42,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 04:04:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-20 04:04:42,507 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 04:04:42,746 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 04:04:42,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020630234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 04:04:42,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 04:04:42,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-20 04:04:42,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993539278] [2024-11-20 04:04:42,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 04:04:42,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 04:04:42,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:04:42,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 04:04:42,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 04:04:42,749 INFO L87 Difference]: Start difference. First operand 238 states and 366 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 3 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2024-11-20 04:04:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:04:42,959 INFO L93 Difference]: Finished difference Result 398 states and 598 transitions. [2024-11-20 04:04:42,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 04:04:42,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 3 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 138 [2024-11-20 04:04:42,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:04:42,962 INFO L225 Difference]: With dead ends: 398 [2024-11-20 04:04:42,962 INFO L226 Difference]: Without dead ends: 258 [2024-11-20 04:04:42,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-20 04:04:42,964 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 86 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 04:04:42,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 173 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 04:04:42,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-20 04:04:42,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 197. [2024-11-20 04:04:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 129 states have (on average 1.2635658914728682) internal successors, (163), 129 states have internal predecessors, (163), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 04:04:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 283 transitions. [2024-11-20 04:04:43,000 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 283 transitions. Word has length 138 [2024-11-20 04:04:43,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:04:43,001 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 283 transitions. [2024-11-20 04:04:43,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 3 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2024-11-20 04:04:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 283 transitions. [2024-11-20 04:04:43,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 04:04:43,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:43,004 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:43,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 04:04:43,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-20 04:04:43,205 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:43,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1737007609, now seen corresponding path program 1 times [2024-11-20 04:04:43,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:43,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210857328] [2024-11-20 04:04:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:43,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:04:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:04:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 04:04:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:04:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 04:04:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:04:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 04:04:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:04:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:04:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:04:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:04:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:04:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:04:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:04:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 04:04:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:04:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 04:04:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 04:04:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 04:04:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 04:04:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,579 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 04:04:43,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:04:43,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210857328] [2024-11-20 04:04:43,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210857328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 04:04:43,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670882760] [2024-11-20 04:04:43,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:43,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 04:04:43,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:04:43,582 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 04:04:43,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 04:04:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:43,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 04:04:43,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 04:04:43,836 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 379 proven. 21 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-20 04:04:43,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 04:04:44,017 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 04:04:44,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670882760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 04:04:44,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 04:04:44,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-11-20 04:04:44,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431773015] [2024-11-20 04:04:44,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 04:04:44,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 04:04:44,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:04:44,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 04:04:44,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-20 04:04:44,020 INFO L87 Difference]: Start difference. First operand 197 states and 283 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-20 04:04:44,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:04:44,635 INFO L93 Difference]: Finished difference Result 573 states and 803 transitions. [2024-11-20 04:04:44,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 04:04:44,637 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 141 [2024-11-20 04:04:44,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:04:44,640 INFO L225 Difference]: With dead ends: 573 [2024-11-20 04:04:44,640 INFO L226 Difference]: Without dead ends: 425 [2024-11-20 04:04:44,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 320 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2024-11-20 04:04:44,642 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 406 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 04:04:44,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 322 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 04:04:44,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-20 04:04:44,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 333. [2024-11-20 04:04:44,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 233 states have (on average 1.2446351931330473) internal successors, (290), 235 states have internal predecessors, (290), 84 states have call successors, (84), 15 states have call predecessors, (84), 15 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-20 04:04:44,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 458 transitions. [2024-11-20 04:04:44,707 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 458 transitions. Word has length 141 [2024-11-20 04:04:44,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:04:44,707 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 458 transitions. [2024-11-20 04:04:44,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-20 04:04:44,708 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 458 transitions. [2024-11-20 04:04:44,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 04:04:44,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:44,709 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:44,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 04:04:44,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-20 04:04:44,910 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:44,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:44,911 INFO L85 PathProgramCache]: Analyzing trace with hash -257137097, now seen corresponding path program 1 times [2024-11-20 04:04:44,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:44,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894582229] [2024-11-20 04:04:44,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:44,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:04:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:04:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 04:04:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:04:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 04:04:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:04:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 04:04:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:04:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:04:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:04:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:04:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:04:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:04:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:04:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 04:04:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:04:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 04:04:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 04:04:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 04:04:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 04:04:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 04:04:45,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:04:45,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894582229] [2024-11-20 04:04:45,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894582229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 04:04:45,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389882378] [2024-11-20 04:04:45,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:45,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 04:04:45,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:04:45,520 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 04:04:45,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 04:04:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:45,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 04:04:45,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 04:04:46,363 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 178 proven. 96 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-20 04:04:46,363 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 04:04:46,679 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 04:04:46,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389882378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 04:04:46,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 04:04:46,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 6] total 17 [2024-11-20 04:04:46,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499281084] [2024-11-20 04:04:46,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 04:04:46,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 04:04:46,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:04:46,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 04:04:46,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-20 04:04:46,683 INFO L87 Difference]: Start difference. First operand 333 states and 458 transitions. Second operand has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 17 states have internal predecessors, (123), 6 states have call successors, (57), 3 states have call predecessors, (57), 5 states have return successors, (58), 6 states have call predecessors, (58), 6 states have call successors, (58) [2024-11-20 04:04:47,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:04:47,819 INFO L93 Difference]: Finished difference Result 737 states and 1002 transitions. [2024-11-20 04:04:47,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-20 04:04:47,820 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 17 states have internal predecessors, (123), 6 states have call successors, (57), 3 states have call predecessors, (57), 5 states have return successors, (58), 6 states have call predecessors, (58), 6 states have call successors, (58) Word has length 141 [2024-11-20 04:04:47,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:04:47,827 INFO L225 Difference]: With dead ends: 737 [2024-11-20 04:04:47,827 INFO L226 Difference]: Without dead ends: 461 [2024-11-20 04:04:47,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2024-11-20 04:04:47,830 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 286 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 04:04:47,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 412 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 04:04:47,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-20 04:04:47,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 349. [2024-11-20 04:04:47,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 245 states have (on average 1.2163265306122448) internal successors, (298), 247 states have internal predecessors, (298), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-20 04:04:47,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 466 transitions. [2024-11-20 04:04:47,882 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 466 transitions. Word has length 141 [2024-11-20 04:04:47,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:04:47,883 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 466 transitions. [2024-11-20 04:04:47,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 17 states have internal predecessors, (123), 6 states have call successors, (57), 3 states have call predecessors, (57), 5 states have return successors, (58), 6 states have call predecessors, (58), 6 states have call successors, (58) [2024-11-20 04:04:47,883 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 466 transitions. [2024-11-20 04:04:47,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 04:04:47,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:47,885 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:47,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 04:04:48,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 04:04:48,086 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:48,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:48,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1305064142, now seen corresponding path program 1 times [2024-11-20 04:04:48,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:48,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392770373] [2024-11-20 04:04:48,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:48,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 04:04:48,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220550063] [2024-11-20 04:04:48,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:48,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 04:04:48,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:04:48,193 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 04:04:48,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 04:04:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:48,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 04:04:48,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 04:04:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-20 04:04:48,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 04:04:49,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:04:49,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392770373] [2024-11-20 04:04:49,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 04:04:49,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220550063] [2024-11-20 04:04:49,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220550063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 04:04:49,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 04:04:49,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-20 04:04:49,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816427028] [2024-11-20 04:04:49,047 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 04:04:49,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 04:04:49,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:04:49,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 04:04:49,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 04:04:49,049 INFO L87 Difference]: Start difference. First operand 349 states and 466 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 04:04:49,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:04:49,774 INFO L93 Difference]: Finished difference Result 663 states and 882 transitions. [2024-11-20 04:04:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 04:04:49,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2024-11-20 04:04:49,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:04:49,782 INFO L225 Difference]: With dead ends: 663 [2024-11-20 04:04:49,782 INFO L226 Difference]: Without dead ends: 371 [2024-11-20 04:04:49,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-20 04:04:49,783 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 43 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 04:04:49,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 219 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 04:04:49,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-20 04:04:49,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2024-11-20 04:04:49,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 245 states have (on average 1.2) internal successors, (294), 247 states have internal predecessors, (294), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-20 04:04:49,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 462 transitions. [2024-11-20 04:04:49,833 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 462 transitions. Word has length 142 [2024-11-20 04:04:49,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:04:49,833 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 462 transitions. [2024-11-20 04:04:49,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 04:04:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 462 transitions. [2024-11-20 04:04:49,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 04:04:49,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:04:49,835 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:04:49,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 04:04:50,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 04:04:50,036 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:04:50,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:04:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash 837621144, now seen corresponding path program 1 times [2024-11-20 04:04:50,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:04:50,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143312403] [2024-11-20 04:04:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:50,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:04:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 04:04:50,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145399884] [2024-11-20 04:04:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:04:50,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 04:04:50,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:04:50,127 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 04:04:50,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 04:04:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:04:50,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-20 04:04:50,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 04:04:51,407 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 199 proven. 135 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-20 04:04:51,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 04:05:06,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:05:06,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143312403] [2024-11-20 04:05:06,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 04:05:06,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145399884] [2024-11-20 04:05:06,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145399884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 04:05:06,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 04:05:06,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-20 04:05:06,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311710164] [2024-11-20 04:05:06,630 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 04:05:06,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 04:05:06,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:05:06,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 04:05:06,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2024-11-20 04:05:06,634 INFO L87 Difference]: Start difference. First operand 349 states and 462 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 12 states have internal predecessors, (58), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-20 04:05:07,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:05:07,133 INFO L93 Difference]: Finished difference Result 669 states and 876 transitions. [2024-11-20 04:05:07,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 04:05:07,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 12 states have internal predecessors, (58), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 143 [2024-11-20 04:05:07,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:05:07,137 INFO L225 Difference]: With dead ends: 669 [2024-11-20 04:05:07,137 INFO L226 Difference]: Without dead ends: 377 [2024-11-20 04:05:07,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2024-11-20 04:05:07,139 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 147 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 04:05:07,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 457 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 04:05:07,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-20 04:05:07,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 361. [2024-11-20 04:05:07,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 254 states have (on average 1.18503937007874) internal successors, (301), 256 states have internal predecessors, (301), 84 states have call successors, (84), 22 states have call predecessors, (84), 22 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-20 04:05:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 469 transitions. [2024-11-20 04:05:07,173 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 469 transitions. Word has length 143 [2024-11-20 04:05:07,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:05:07,173 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 469 transitions. [2024-11-20 04:05:07,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 12 states have internal predecessors, (58), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-20 04:05:07,174 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 469 transitions. [2024-11-20 04:05:07,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 04:05:07,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:05:07,175 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:05:07,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 04:05:07,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-20 04:05:07,379 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:05:07,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:05:07,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1514720984, now seen corresponding path program 1 times [2024-11-20 04:05:07,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:05:07,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773935598] [2024-11-20 04:05:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:05:07,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:05:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 04:05:07,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493867599] [2024-11-20 04:05:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:05:07,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 04:05:07,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:05:07,515 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 04:05:07,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 04:05:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:07,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-20 04:05:07,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 04:05:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 247 proven. 195 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-20 04:05:09,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 04:05:21,694 WARN L286 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)