./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-86.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 544492f8740cf75ba131482d8a9d3b25cda3fc17f885878b4449b23aaac08107 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 09:33:57,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 09:33:57,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 09:33:57,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 09:33:57,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 09:33:57,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 09:33:57,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 09:33:57,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 09:33:57,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 09:33:57,183 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 09:33:57,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 09:33:57,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 09:33:57,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 09:33:57,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 09:33:57,185 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 09:33:57,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 09:33:57,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 09:33:57,187 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 09:33:57,188 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 09:33:57,188 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 09:33:57,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 09:33:57,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 09:33:57,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 09:33:57,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 09:33:57,192 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 09:33:57,192 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 09:33:57,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 09:33:57,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 09:33:57,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 09:33:57,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 09:33:57,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 09:33:57,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 09:33:57,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 09:33:57,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 09:33:57,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 09:33:57,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 09:33:57,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 09:33:57,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 09:33:57,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 09:33:57,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 09:33:57,196 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 09:33:57,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 09:33:57,197 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 544492f8740cf75ba131482d8a9d3b25cda3fc17f885878b4449b23aaac08107 [2024-10-11 09:33:57,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 09:33:57,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 09:33:57,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 09:33:57,458 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 09:33:57,458 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 09:33:57,460 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-86.i [2024-10-11 09:33:58,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 09:33:59,192 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 09:33:59,193 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-86.i [2024-10-11 09:33:59,207 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c734531e6/6347069cfaa94ab7be35bbf1e63cb117/FLAG688202a28 [2024-10-11 09:33:59,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c734531e6/6347069cfaa94ab7be35bbf1e63cb117 [2024-10-11 09:33:59,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 09:33:59,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 09:33:59,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 09:33:59,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 09:33:59,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 09:33:59,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421f3a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59, skipping insertion in model container [2024-10-11 09:33:59,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,269 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 09:33:59,426 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-86.i[919,932] [2024-10-11 09:33:59,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 09:33:59,511 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 09:33:59,523 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-86.i[919,932] [2024-10-11 09:33:59,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 09:33:59,580 INFO L204 MainTranslator]: Completed translation [2024-10-11 09:33:59,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59 WrapperNode [2024-10-11 09:33:59,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 09:33:59,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 09:33:59,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 09:33:59,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 09:33:59,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,645 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-10-11 09:33:59,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 09:33:59,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 09:33:59,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 09:33:59,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 09:33:59,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,665 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,693 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 09:33:59,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,705 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 09:33:59,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 09:33:59,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 09:33:59,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 09:33:59,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (1/1) ... [2024-10-11 09:33:59,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 09:33:59,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 09:33:59,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 09:33:59,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 09:33:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 09:33:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 09:33:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 09:33:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 09:33:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 09:33:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 09:33:59,918 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 09:33:59,923 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 09:34:00,387 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-10-11 09:34:00,387 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 09:34:00,427 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 09:34:00,429 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 09:34:00,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:34:00 BoogieIcfgContainer [2024-10-11 09:34:00,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 09:34:00,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 09:34:00,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 09:34:00,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 09:34:00,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 09:33:59" (1/3) ... [2024-10-11 09:34:00,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c07a282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:34:00, skipping insertion in model container [2024-10-11 09:34:00,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:33:59" (2/3) ... [2024-10-11 09:34:00,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c07a282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:34:00, skipping insertion in model container [2024-10-11 09:34:00,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:34:00" (3/3) ... [2024-10-11 09:34:00,441 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-86.i [2024-10-11 09:34:00,454 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 09:34:00,454 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 09:34:00,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 09:34:00,552 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;@62104218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 09:34:00,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 09:34:00,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 61 states have (on average 1.540983606557377) internal successors, (94), 62 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 09:34:00,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-11 09:34:00,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:00,597 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:00,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:00,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:00,603 INFO L85 PathProgramCache]: Analyzing trace with hash -743867225, now seen corresponding path program 1 times [2024-10-11 09:34:00,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:00,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50048945] [2024-10-11 09:34:00,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:00,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:00,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:01,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:01,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50048945] [2024-10-11 09:34:01,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50048945] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:01,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:01,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 09:34:01,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868368126] [2024-10-11 09:34:01,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:01,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 09:34:01,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:01,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 09:34:01,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 09:34:01,163 INFO L87 Difference]: Start difference. First operand has 91 states, 61 states have (on average 1.540983606557377) internal successors, (94), 62 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 09:34:01,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:01,205 INFO L93 Difference]: Finished difference Result 179 states and 321 transitions. [2024-10-11 09:34:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 09:34:01,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 170 [2024-10-11 09:34:01,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:01,219 INFO L225 Difference]: With dead ends: 179 [2024-10-11 09:34:01,219 INFO L226 Difference]: Without dead ends: 89 [2024-10-11 09:34:01,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 09:34:01,230 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:01,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 09:34:01,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-11 09:34:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-10-11 09:34:01,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 60 states have internal predecessors, (88), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 09:34:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 142 transitions. [2024-10-11 09:34:01,274 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 142 transitions. Word has length 170 [2024-10-11 09:34:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:01,274 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 142 transitions. [2024-10-11 09:34:01,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 09:34:01,275 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 142 transitions. [2024-10-11 09:34:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-11 09:34:01,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:01,280 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:01,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 09:34:01,281 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:01,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:01,282 INFO L85 PathProgramCache]: Analyzing trace with hash -446301591, now seen corresponding path program 1 times [2024-10-11 09:34:01,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:01,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895122429] [2024-10-11 09:34:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:01,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:01,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:01,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:01,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895122429] [2024-10-11 09:34:01,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895122429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:01,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:01,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 09:34:01,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970426511] [2024-10-11 09:34:01,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:01,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 09:34:01,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:01,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 09:34:01,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:34:01,720 INFO L87 Difference]: Start difference. First operand 89 states and 142 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:01,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:01,790 INFO L93 Difference]: Finished difference Result 178 states and 285 transitions. [2024-10-11 09:34:01,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 09:34:01,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-11 09:34:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:01,793 INFO L225 Difference]: With dead ends: 178 [2024-10-11 09:34:01,793 INFO L226 Difference]: Without dead ends: 90 [2024-10-11 09:34:01,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:34:01,795 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:01,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 271 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 09:34:01,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-11 09:34:01,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-11 09:34:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.459016393442623) internal successors, (89), 61 states have internal predecessors, (89), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 09:34:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 143 transitions. [2024-10-11 09:34:01,815 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 143 transitions. Word has length 170 [2024-10-11 09:34:01,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:01,817 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 143 transitions. [2024-10-11 09:34:01,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:01,818 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2024-10-11 09:34:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-11 09:34:01,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:01,823 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:01,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 09:34:01,823 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:01,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:01,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1457418841, now seen corresponding path program 1 times [2024-10-11 09:34:01,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:01,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723027093] [2024-10-11 09:34:01,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:01,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:02,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:02,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723027093] [2024-10-11 09:34:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723027093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:02,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:02,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 09:34:02,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457770290] [2024-10-11 09:34:02,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:02,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 09:34:02,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:02,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 09:34:02,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 09:34:02,212 INFO L87 Difference]: Start difference. First operand 90 states and 143 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:02,498 INFO L93 Difference]: Finished difference Result 269 states and 428 transitions. [2024-10-11 09:34:02,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 09:34:02,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-11 09:34:02,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:02,502 INFO L225 Difference]: With dead ends: 269 [2024-10-11 09:34:02,502 INFO L226 Difference]: Without dead ends: 180 [2024-10-11 09:34:02,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 09:34:02,504 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 147 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:02,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 487 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 09:34:02,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-10-11 09:34:02,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 136. [2024-10-11 09:34:02,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 79 states have internal predecessors, (107), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-11 09:34:02,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 215 transitions. [2024-10-11 09:34:02,527 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 215 transitions. Word has length 170 [2024-10-11 09:34:02,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:02,528 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 215 transitions. [2024-10-11 09:34:02,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:02,528 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 215 transitions. [2024-10-11 09:34:02,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-11 09:34:02,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:02,533 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:02,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 09:34:02,534 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:02,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:02,534 INFO L85 PathProgramCache]: Analyzing trace with hash 2019900005, now seen corresponding path program 1 times [2024-10-11 09:34:02,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:02,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509874468] [2024-10-11 09:34:02,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:02,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:02,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:02,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509874468] [2024-10-11 09:34:02,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509874468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:02,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:02,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 09:34:02,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635245949] [2024-10-11 09:34:02,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:02,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 09:34:02,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:02,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 09:34:02,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:34:02,919 INFO L87 Difference]: Start difference. First operand 136 states and 215 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:02,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:02,990 INFO L93 Difference]: Finished difference Result 314 states and 499 transitions. [2024-10-11 09:34:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 09:34:02,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-11 09:34:02,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:02,994 INFO L225 Difference]: With dead ends: 314 [2024-10-11 09:34:02,994 INFO L226 Difference]: Without dead ends: 225 [2024-10-11 09:34:02,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:34:03,001 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 93 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:03,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 320 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 09:34:03,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-11 09:34:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2024-10-11 09:34:03,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 138 states have (on average 1.3768115942028984) internal successors, (190), 138 states have internal predecessors, (190), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 09:34:03,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 352 transitions. [2024-10-11 09:34:03,035 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 352 transitions. Word has length 170 [2024-10-11 09:34:03,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:03,035 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 352 transitions. [2024-10-11 09:34:03,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:03,036 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 352 transitions. [2024-10-11 09:34:03,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-11 09:34:03,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:03,038 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:03,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 09:34:03,038 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:03,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:03,039 INFO L85 PathProgramCache]: Analyzing trace with hash 330956263, now seen corresponding path program 1 times [2024-10-11 09:34:03,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:03,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930035387] [2024-10-11 09:34:03,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:03,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:10,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:10,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930035387] [2024-10-11 09:34:10,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930035387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:10,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:10,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 09:34:10,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056888817] [2024-10-11 09:34:10,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:10,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 09:34:10,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:10,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 09:34:10,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-11 09:34:10,392 INFO L87 Difference]: Start difference. First operand 223 states and 352 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:13,541 INFO L93 Difference]: Finished difference Result 436 states and 682 transitions. [2024-10-11 09:34:13,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 09:34:13,543 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-11 09:34:13,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:13,546 INFO L225 Difference]: With dead ends: 436 [2024-10-11 09:34:13,546 INFO L226 Difference]: Without dead ends: 347 [2024-10-11 09:34:13,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2024-10-11 09:34:13,548 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 683 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:13,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 767 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 09:34:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-10-11 09:34:13,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 264. [2024-10-11 09:34:13,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 179 states have (on average 1.4134078212290502) internal successors, (253), 179 states have internal predecessors, (253), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 09:34:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 415 transitions. [2024-10-11 09:34:13,590 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 415 transitions. Word has length 170 [2024-10-11 09:34:13,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:13,591 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 415 transitions. [2024-10-11 09:34:13,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:13,592 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 415 transitions. [2024-10-11 09:34:13,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-11 09:34:13,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:13,594 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:13,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 09:34:13,595 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:13,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash -255849751, now seen corresponding path program 1 times [2024-10-11 09:34:13,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:13,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499580811] [2024-10-11 09:34:13,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:13,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:13,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:13,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499580811] [2024-10-11 09:34:13,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499580811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:13,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:13,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 09:34:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813419933] [2024-10-11 09:34:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:13,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 09:34:13,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:13,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 09:34:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:34:13,722 INFO L87 Difference]: Start difference. First operand 264 states and 415 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:13,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:13,780 INFO L93 Difference]: Finished difference Result 441 states and 697 transitions. [2024-10-11 09:34:13,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 09:34:13,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-11 09:34:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:13,784 INFO L225 Difference]: With dead ends: 441 [2024-10-11 09:34:13,784 INFO L226 Difference]: Without dead ends: 352 [2024-10-11 09:34:13,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:34:13,786 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 133 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:13,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 315 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 09:34:13,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-10-11 09:34:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 263. [2024-10-11 09:34:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 178 states have (on average 1.4101123595505618) internal successors, (251), 178 states have internal predecessors, (251), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 09:34:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 413 transitions. [2024-10-11 09:34:13,813 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 413 transitions. Word has length 170 [2024-10-11 09:34:13,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:13,814 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 413 transitions. [2024-10-11 09:34:13,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 413 transitions. [2024-10-11 09:34:13,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-11 09:34:13,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:13,816 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:13,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 09:34:13,817 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:13,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:13,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1711552634, now seen corresponding path program 1 times [2024-10-11 09:34:13,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:13,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229238029] [2024-10-11 09:34:13,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:13,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:19,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:19,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:19,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229238029] [2024-10-11 09:34:19,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229238029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:19,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:19,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-11 09:34:19,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510142894] [2024-10-11 09:34:19,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:19,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 09:34:19,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 09:34:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-11 09:34:19,711 INFO L87 Difference]: Start difference. First operand 263 states and 413 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:23,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:23,119 INFO L93 Difference]: Finished difference Result 346 states and 531 transitions. [2024-10-11 09:34:23,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 09:34:23,120 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-11 09:34:23,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:23,122 INFO L225 Difference]: With dead ends: 346 [2024-10-11 09:34:23,122 INFO L226 Difference]: Without dead ends: 344 [2024-10-11 09:34:23,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2024-10-11 09:34:23,126 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 484 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:23,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1041 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 09:34:23,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-11 09:34:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 264. [2024-10-11 09:34:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 179 states have (on average 1.4078212290502794) internal successors, (252), 179 states have internal predecessors, (252), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 09:34:23,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 414 transitions. [2024-10-11 09:34:23,154 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 414 transitions. Word has length 171 [2024-10-11 09:34:23,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:23,154 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 414 transitions. [2024-10-11 09:34:23,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:23,155 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 414 transitions. [2024-10-11 09:34:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-11 09:34:23,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:23,156 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:23,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 09:34:23,157 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:23,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:23,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1499395220, now seen corresponding path program 1 times [2024-10-11 09:34:23,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:23,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103970843] [2024-10-11 09:34:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:23,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:23,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:23,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:23,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103970843] [2024-10-11 09:34:23,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103970843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:23,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:23,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 09:34:23,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106042222] [2024-10-11 09:34:23,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:23,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 09:34:23,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:23,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 09:34:23,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 09:34:23,465 INFO L87 Difference]: Start difference. First operand 264 states and 414 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:23,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:23,533 INFO L93 Difference]: Finished difference Result 462 states and 720 transitions. [2024-10-11 09:34:23,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 09:34:23,533 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-11 09:34:23,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:23,537 INFO L225 Difference]: With dead ends: 462 [2024-10-11 09:34:23,537 INFO L226 Difference]: Without dead ends: 284 [2024-10-11 09:34:23,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 09:34:23,541 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 54 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:23,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 388 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 09:34:23,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-10-11 09:34:23,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 272. [2024-10-11 09:34:23,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 185 states have internal predecessors, (255), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 09:34:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 417 transitions. [2024-10-11 09:34:23,568 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 417 transitions. Word has length 171 [2024-10-11 09:34:23,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:23,569 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 417 transitions. [2024-10-11 09:34:23,569 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 417 transitions. [2024-10-11 09:34:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-11 09:34:23,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:23,572 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:23,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 09:34:23,573 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:23,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:23,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1020564714, now seen corresponding path program 1 times [2024-10-11 09:34:23,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:23,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548882073] [2024-10-11 09:34:23,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:23,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:28,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:28,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548882073] [2024-10-11 09:34:28,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548882073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:28,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:28,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-11 09:34:28,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336137626] [2024-10-11 09:34:28,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:28,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 09:34:28,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:28,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 09:34:28,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-11 09:34:28,382 INFO L87 Difference]: Start difference. First operand 272 states and 417 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:31,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:31,918 INFO L93 Difference]: Finished difference Result 360 states and 540 transitions. [2024-10-11 09:34:31,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 09:34:31,918 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-11 09:34:31,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:31,921 INFO L225 Difference]: With dead ends: 360 [2024-10-11 09:34:31,921 INFO L226 Difference]: Without dead ends: 358 [2024-10-11 09:34:31,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=274, Invalid=718, Unknown=0, NotChecked=0, Total=992 [2024-10-11 09:34:31,922 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 517 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:31,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 932 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 09:34:31,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-10-11 09:34:31,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 272. [2024-10-11 09:34:31,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 185 states have internal predecessors, (255), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 09:34:31,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 417 transitions. [2024-10-11 09:34:31,947 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 417 transitions. Word has length 171 [2024-10-11 09:34:31,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:31,948 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 417 transitions. [2024-10-11 09:34:31,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:31,948 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 417 transitions. [2024-10-11 09:34:31,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-11 09:34:31,950 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:31,950 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:31,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 09:34:31,950 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:31,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:31,951 INFO L85 PathProgramCache]: Analyzing trace with hash -778578052, now seen corresponding path program 1 times [2024-10-11 09:34:31,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:31,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367135179] [2024-10-11 09:34:31,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:31,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:36,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:36,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:36,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367135179] [2024-10-11 09:34:36,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367135179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:36,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:36,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-11 09:34:36,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622322543] [2024-10-11 09:34:36,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:36,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 09:34:36,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:36,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 09:34:36,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-10-11 09:34:36,437 INFO L87 Difference]: Start difference. First operand 272 states and 417 transitions. Second operand has 17 states, 16 states have (on average 2.4375) internal successors, (39), 17 states have internal predecessors, (39), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 09:34:39,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:39,473 INFO L93 Difference]: Finished difference Result 384 states and 574 transitions. [2024-10-11 09:34:39,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 09:34:39,475 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.4375) internal successors, (39), 17 states have internal predecessors, (39), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 171 [2024-10-11 09:34:39,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:39,478 INFO L225 Difference]: With dead ends: 384 [2024-10-11 09:34:39,478 INFO L226 Difference]: Without dead ends: 382 [2024-10-11 09:34:39,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=322, Invalid=800, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 09:34:39,480 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 537 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:39,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1017 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 09:34:39,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-10-11 09:34:39,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 290. [2024-10-11 09:34:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 203 states have (on average 1.3940886699507389) internal successors, (283), 203 states have internal predecessors, (283), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 09:34:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 445 transitions. [2024-10-11 09:34:39,505 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 445 transitions. Word has length 171 [2024-10-11 09:34:39,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:39,505 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 445 transitions. [2024-10-11 09:34:39,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.4375) internal successors, (39), 17 states have internal predecessors, (39), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 09:34:39,506 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 445 transitions. [2024-10-11 09:34:39,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-11 09:34:39,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:39,508 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:39,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 09:34:39,508 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:39,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:39,509 INFO L85 PathProgramCache]: Analyzing trace with hash -77513474, now seen corresponding path program 1 times [2024-10-11 09:34:39,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:39,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587296015] [2024-10-11 09:34:39,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:39,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:34:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:34:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:34:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:34:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:34:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:34:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:34:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:34:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:34:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:34:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:34:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:34:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:34:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:34:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:34:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:34:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:34:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:34:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:34:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:34:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:34:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:34:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:34:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:34:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:34:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:34:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:34:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:34:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:34:47,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:34:47,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587296015] [2024-10-11 09:34:47,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587296015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:34:47,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:34:47,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-11 09:34:47,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862612011] [2024-10-11 09:34:47,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:34:47,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 09:34:47,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:34:47,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 09:34:47,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-10-11 09:34:47,552 INFO L87 Difference]: Start difference. First operand 290 states and 445 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:56,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:34:56,267 INFO L93 Difference]: Finished difference Result 378 states and 568 transitions. [2024-10-11 09:34:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 09:34:56,267 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-11 09:34:56,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:34:56,270 INFO L225 Difference]: With dead ends: 378 [2024-10-11 09:34:56,270 INFO L226 Difference]: Without dead ends: 376 [2024-10-11 09:34:56,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=302, Invalid=690, Unknown=0, NotChecked=0, Total=992 [2024-10-11 09:34:56,271 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 460 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 09:34:56,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 923 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 09:34:56,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-10-11 09:34:56,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 290. [2024-10-11 09:34:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 203 states have (on average 1.3940886699507389) internal successors, (283), 203 states have internal predecessors, (283), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 09:34:56,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 445 transitions. [2024-10-11 09:34:56,298 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 445 transitions. Word has length 171 [2024-10-11 09:34:56,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:34:56,299 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 445 transitions. [2024-10-11 09:34:56,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:34:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 445 transitions. [2024-10-11 09:34:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-11 09:34:56,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:34:56,301 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:34:56,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 09:34:56,302 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:34:56,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:34:56,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1530891989, now seen corresponding path program 1 times [2024-10-11 09:34:56,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:34:56,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051671070] [2024-10-11 09:34:56,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:34:56,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:34:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:35:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:35:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:35:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:35:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:35:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:35:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:35:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:35:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:35:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:35:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:35:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:35:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 09:35:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:35:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 09:35:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:35:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 09:35:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:35:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 09:35:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 09:35:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 09:35:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 09:35:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 09:35:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 09:35:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 09:35:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 09:35:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 09:35:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:35:04,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-11 09:35:04,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:35:04,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051671070] [2024-10-11 09:35:04,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051671070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:35:04,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:35:04,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-11 09:35:04,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232167945] [2024-10-11 09:35:04,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:35:04,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 09:35:04,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:35:04,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 09:35:04,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-11 09:35:04,825 INFO L87 Difference]: Start difference. First operand 290 states and 445 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:35:12,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:35:12,330 INFO L93 Difference]: Finished difference Result 364 states and 547 transitions. [2024-10-11 09:35:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 09:35:12,331 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-10-11 09:35:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:35:12,333 INFO L225 Difference]: With dead ends: 364 [2024-10-11 09:35:12,333 INFO L226 Difference]: Without dead ends: 362 [2024-10-11 09:35:12,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=395, Invalid=1087, Unknown=0, NotChecked=0, Total=1482 [2024-10-11 09:35:12,334 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 609 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-11 09:35:12,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 872 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-11 09:35:12,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-11 09:35:12,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 287. [2024-10-11 09:35:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 200 states have (on average 1.395) internal successors, (279), 200 states have internal predecessors, (279), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 09:35:12,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 441 transitions. [2024-10-11 09:35:12,370 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 441 transitions. Word has length 172 [2024-10-11 09:35:12,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:35:12,370 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 441 transitions. [2024-10-11 09:35:12,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 09:35:12,371 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 441 transitions. [2024-10-11 09:35:12,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-11 09:35:12,373 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:35:12,373 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:35:12,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 09:35:12,373 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:35:12,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:35:12,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1677574279, now seen corresponding path program 1 times [2024-10-11 09:35:12,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:35:12,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11167180] [2024-10-11 09:35:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:35:12,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:35:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat