./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_codestructure_normal_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_codestructure_normal_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 a9741d9253f3a1c34b363b1f78a0a60d9588ccafe85a5c037fb56edb8bf20d1f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 07:26:32,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 07:26:32,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 07:26:32,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 07:26:32,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 07:26:32,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 07:26:32,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 07:26:32,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 07:26:32,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 07:26:32,947 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 07:26:32,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 07:26:32,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 07:26:32,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 07:26:32,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 07:26:32,952 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 07:26:32,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 07:26:32,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 07:26:32,953 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 07:26:32,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 07:26:32,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 07:26:32,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 07:26:32,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 07:26:32,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 07:26:32,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 07:26:32,957 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 07:26:32,957 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 07:26:32,957 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 07:26:32,958 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 07:26:32,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 07:26:32,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 07:26:32,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 07:26:32,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 07:26:32,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:26:32,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 07:26:32,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 07:26:32,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 07:26:32,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 07:26:32,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 07:26:32,962 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 07:26:32,962 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 07:26:32,962 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 07:26:32,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 07:26:32,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9741d9253f3a1c34b363b1f78a0a60d9588ccafe85a5c037fb56edb8bf20d1f [2024-10-11 07:26:33,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 07:26:33,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 07:26:33,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 07:26:33,265 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 07:26:33,267 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 07:26:33,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.i [2024-10-11 07:26:34,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 07:26:34,939 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 07:26:34,943 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.i [2024-10-11 07:26:34,952 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1eae4d15b/57114f4b896449ceb9ab07fc4b036c74/FLAGc3c417a8e [2024-10-11 07:26:34,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1eae4d15b/57114f4b896449ceb9ab07fc4b036c74 [2024-10-11 07:26:34,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 07:26:34,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 07:26:34,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 07:26:34,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 07:26:34,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 07:26:34,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:26:34" (1/1) ... [2024-10-11 07:26:34,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2191fe16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:34, skipping insertion in model container [2024-10-11 07:26:34,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:26:34" (1/1) ... [2024-10-11 07:26:35,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 07:26:35,206 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_codestructure_normal_file-86.i[913,926] [2024-10-11 07:26:35,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:26:35,276 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 07:26:35,289 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_codestructure_normal_file-86.i[913,926] [2024-10-11 07:26:35,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:26:35,350 INFO L204 MainTranslator]: Completed translation [2024-10-11 07:26:35,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35 WrapperNode [2024-10-11 07:26:35,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 07:26:35,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 07:26:35,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 07:26:35,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 07:26:35,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,415 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 160 [2024-10-11 07:26:35,416 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 07:26:35,416 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 07:26:35,416 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 07:26:35,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 07:26:35,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,438 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,467 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 07:26:35,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 07:26:35,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 07:26:35,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 07:26:35,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 07:26:35,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (1/1) ... [2024-10-11 07:26:35,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:26:35,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:26:35,549 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 07:26:35,553 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 07:26:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 07:26:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 07:26:35,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 07:26:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 07:26:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 07:26:35,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 07:26:35,699 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 07:26:35,703 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 07:26:36,094 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-11 07:26:36,097 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 07:26:36,203 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 07:26:36,203 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 07:26:36,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:26:36 BoogieIcfgContainer [2024-10-11 07:26:36,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 07:26:36,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 07:26:36,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 07:26:36,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 07:26:36,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:26:34" (1/3) ... [2024-10-11 07:26:36,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbfe62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:26:36, skipping insertion in model container [2024-10-11 07:26:36,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:35" (2/3) ... [2024-10-11 07:26:36,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbfe62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:26:36, skipping insertion in model container [2024-10-11 07:26:36,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:26:36" (3/3) ... [2024-10-11 07:26:36,236 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-86.i [2024-10-11 07:26:36,252 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 07:26:36,253 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 07:26:36,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 07:26:36,334 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;@7b6b0143, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 07:26:36,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 07:26:36,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:26:36,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-11 07:26:36,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:26:36,359 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:26:36,360 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:26:36,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:26:36,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2069232595, now seen corresponding path program 1 times [2024-10-11 07:26:36,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:26:36,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100218269] [2024-10-11 07:26:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:26:36,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:26:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:26:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:26:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:26:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:26:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:26:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:26:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:26:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:26:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:26:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:26:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:26:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:26:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:26:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:26:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 07:26:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:26:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 07:26:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:26:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 07:26:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:26:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 07:26:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:26:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 07:26:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:26:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 07:26:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:26:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 07:26:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 07:26:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 07:26:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 07:26:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 07:26:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:36,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-10-11 07:26:36,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:26:36,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100218269] [2024-10-11 07:26:36,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100218269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:26:36,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:26:36,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 07:26:36,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630940036] [2024-10-11 07:26:36,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:26:37,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 07:26:37,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:26:37,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 07:26:37,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 07:26:37,036 INFO L87 Difference]: Start difference. First operand has 69 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-11 07:26:37,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:26:37,100 INFO L93 Difference]: Finished difference Result 135 states and 253 transitions. [2024-10-11 07:26:37,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 07:26:37,108 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 181 [2024-10-11 07:26:37,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:26:37,118 INFO L225 Difference]: With dead ends: 135 [2024-10-11 07:26:37,119 INFO L226 Difference]: Without dead ends: 67 [2024-10-11 07:26:37,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 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 07:26:37,128 INFO L432 NwaCegarLoop]: 104 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, 104 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 07:26:37,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:26:37,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-10-11 07:26:37,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-10-11 07:26:37,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:26:37,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 107 transitions. [2024-10-11 07:26:37,198 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 107 transitions. Word has length 181 [2024-10-11 07:26:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:26:37,198 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 107 transitions. [2024-10-11 07:26:37,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-11 07:26:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 107 transitions. [2024-10-11 07:26:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-11 07:26:37,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:26:37,207 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:26:37,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 07:26:37,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:26:37,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:26:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash -357961007, now seen corresponding path program 1 times [2024-10-11 07:26:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:26:37,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861294128] [2024-10-11 07:26:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:26:37,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:26:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:26:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:26:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:26:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:26:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:26:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:26:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:26:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:26:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:26:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:26:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:26:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:26:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:26:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:26:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 07:26:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:26:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 07:26:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:50,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:26:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 07:26:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:26:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 07:26:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:26:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 07:26:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:26:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 07:26:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:26:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 07:26:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 07:26:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 07:26:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 07:26:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 07:26:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-10-11 07:26:51,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:26:51,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861294128] [2024-10-11 07:26:51,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861294128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:26:51,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:26:51,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 07:26:51,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801538201] [2024-10-11 07:26:51,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:26:51,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:26:51,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:26:51,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:26:51,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:26:51,048 INFO L87 Difference]: Start difference. First operand 67 states and 107 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:26:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:26:53,880 INFO L93 Difference]: Finished difference Result 170 states and 265 transitions. [2024-10-11 07:26:53,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:26:53,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 181 [2024-10-11 07:26:53,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:26:53,886 INFO L225 Difference]: With dead ends: 170 [2024-10-11 07:26:53,887 INFO L226 Difference]: Without dead ends: 104 [2024-10-11 07:26:53,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:26:53,889 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 80 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:26:53,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 327 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 07:26:53,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-11 07:26:53,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 75. [2024-10-11 07:26:53,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 07:26:53,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 119 transitions. [2024-10-11 07:26:53,901 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 119 transitions. Word has length 181 [2024-10-11 07:26:53,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:26:53,903 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 119 transitions. [2024-10-11 07:26:53,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:26:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 119 transitions. [2024-10-11 07:26:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-11 07:26:53,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:26:53,907 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:26:53,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 07:26:53,907 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:26:53,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:26:53,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1167307633, now seen corresponding path program 1 times [2024-10-11 07:26:53,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:26:53,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98561873] [2024-10-11 07:26:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:26:53,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:26:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:26:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:26:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:26:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:26:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:26:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:26:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:26:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:26:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:26:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:26:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:26:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:26:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:26:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:26:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 07:26:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:26:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 07:26:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:26:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 07:26:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:26:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 07:26:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:26:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 07:26:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:26:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 07:26:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:26:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 07:26:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 07:26:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 07:26:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 07:26:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 07:26:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:26:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-10-11 07:26:54,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:26:54,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98561873] [2024-10-11 07:26:54,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98561873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:26:54,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:26:54,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 07:26:54,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780952402] [2024-10-11 07:26:54,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:26:54,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 07:26:54,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:26:54,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 07:26:54,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 07:26:54,094 INFO L87 Difference]: Start difference. First operand 75 states and 119 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:26:54,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:26:54,140 INFO L93 Difference]: Finished difference Result 175 states and 274 transitions. [2024-10-11 07:26:54,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 07:26:54,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 181 [2024-10-11 07:26:54,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:26:54,143 INFO L225 Difference]: With dead ends: 175 [2024-10-11 07:26:54,143 INFO L226 Difference]: Without dead ends: 101 [2024-10-11 07:26:54,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 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 07:26:54,149 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 42 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:26:54,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 238 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:26:54,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-10-11 07:26:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2024-10-11 07:26:54,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 57 states have internal predecessors, (75), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-11 07:26:54,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 153 transitions. [2024-10-11 07:26:54,174 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 153 transitions. Word has length 181 [2024-10-11 07:26:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:26:54,176 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 153 transitions. [2024-10-11 07:26:54,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:26:54,177 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 153 transitions. [2024-10-11 07:26:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-11 07:26:54,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:26:54,184 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:26:54,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 07:26:54,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:26:54,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:26:54,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1786977719, now seen corresponding path program 1 times [2024-10-11 07:26:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:26:54,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200734989] [2024-10-11 07:26:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:26:54,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:26:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:04,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:27:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:04,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:27:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:04,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:27:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:27:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:27:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:27:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:27:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:27:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:27:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:27:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:27:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:27:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:27:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:27:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 07:27:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:27:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 07:27:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:27:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 07:27:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:27:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 07:27:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:27:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 07:27:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:27:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 07:27:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:27:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 07:27:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 07:27:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 07:27:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 07:27:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 07:27:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:05,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-10-11 07:27:05,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:27:05,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200734989] [2024-10-11 07:27:05,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200734989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:27:05,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:27:05,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 07:27:05,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356895247] [2024-10-11 07:27:05,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:27:05,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:27:05,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:27:05,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:27:05,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:27:05,053 INFO L87 Difference]: Start difference. First operand 98 states and 153 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:06,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:27:06,633 INFO L93 Difference]: Finished difference Result 125 states and 183 transitions. [2024-10-11 07:27:06,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:27:06,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 182 [2024-10-11 07:27:06,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:27:06,639 INFO L225 Difference]: With dead ends: 125 [2024-10-11 07:27:06,641 INFO L226 Difference]: Without dead ends: 123 [2024-10-11 07:27:06,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:27:06,644 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 87 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:27:06,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 337 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 07:27:06,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-10-11 07:27:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 99. [2024-10-11 07:27:06,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 57 states have (on average 1.3508771929824561) internal successors, (77), 58 states have internal predecessors, (77), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-11 07:27:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 155 transitions. [2024-10-11 07:27:06,658 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 155 transitions. Word has length 182 [2024-10-11 07:27:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:27:06,658 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 155 transitions. [2024-10-11 07:27:06,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:06,659 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 155 transitions. [2024-10-11 07:27:06,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-11 07:27:06,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:27:06,661 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:06,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 07:27:06,661 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:27:06,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:27:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1787037301, now seen corresponding path program 1 times [2024-10-11 07:27:06,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:27:06,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920245586] [2024-10-11 07:27:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:27:06,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:27:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:27:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:27:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:27:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:27:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:27:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:27:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:27:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:27:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:27:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:27:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:27:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:27:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:27:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:27:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 07:27:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:27:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 07:27:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:27:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 07:27:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:27:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 07:27:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:27:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 07:27:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:27:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 07:27:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:27:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 07:27:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 07:27:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 07:27:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 07:27:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 07:27:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:15,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-10-11 07:27:15,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:27:15,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920245586] [2024-10-11 07:27:15,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920245586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:27:15,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:27:15,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 07:27:15,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181348173] [2024-10-11 07:27:15,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:27:15,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:27:15,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:27:15,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:27:15,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:27:15,645 INFO L87 Difference]: Start difference. First operand 99 states and 155 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:17,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:27:17,505 INFO L93 Difference]: Finished difference Result 121 states and 179 transitions. [2024-10-11 07:27:17,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:27:17,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 182 [2024-10-11 07:27:17,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:27:17,509 INFO L225 Difference]: With dead ends: 121 [2024-10-11 07:27:17,509 INFO L226 Difference]: Without dead ends: 119 [2024-10-11 07:27:17,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:27:17,511 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 86 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 07:27:17,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 329 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 07:27:17,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-11 07:27:17,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 99. [2024-10-11 07:27:17,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 57 states have (on average 1.3508771929824561) internal successors, (77), 58 states have internal predecessors, (77), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-11 07:27:17,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 155 transitions. [2024-10-11 07:27:17,533 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 155 transitions. Word has length 182 [2024-10-11 07:27:17,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:27:17,535 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 155 transitions. [2024-10-11 07:27:17,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:17,536 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 155 transitions. [2024-10-11 07:27:17,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-11 07:27:17,538 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:27:17,538 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:17,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 07:27:17,539 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:27:17,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:27:17,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1836698898, now seen corresponding path program 1 times [2024-10-11 07:27:17,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:27:17,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199344146] [2024-10-11 07:27:17,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:27:17,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:27:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:27:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:27:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:27:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:27:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:27:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:27:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:27:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:27:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:27:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:27:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:27:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:27:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:27:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:27:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 07:27:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:27:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 07:27:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:27:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 07:27:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:27:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 07:27:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:27:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 07:27:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:27:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 07:27:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:27:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 07:27:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 07:27:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 07:27:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 07:27:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 07:27:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-10-11 07:27:25,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:27:25,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199344146] [2024-10-11 07:27:25,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199344146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:27:25,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:27:25,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 07:27:25,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443893618] [2024-10-11 07:27:25,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:27:25,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:27:25,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:27:25,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:27:25,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:27:25,648 INFO L87 Difference]: Start difference. First operand 99 states and 155 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:26,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:27:26,946 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2024-10-11 07:27:26,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:27:26,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 182 [2024-10-11 07:27:26,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:27:26,948 INFO L225 Difference]: With dead ends: 127 [2024-10-11 07:27:26,948 INFO L226 Difference]: Without dead ends: 125 [2024-10-11 07:27:26,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:27:26,949 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 73 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:27:26,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 445 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 07:27:26,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-10-11 07:27:26,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 101. [2024-10-11 07:27:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 60 states have internal predecessors, (81), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-11 07:27:26,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 159 transitions. [2024-10-11 07:27:26,963 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 159 transitions. Word has length 182 [2024-10-11 07:27:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:27:26,964 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 159 transitions. [2024-10-11 07:27:26,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 159 transitions. [2024-10-11 07:27:26,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-11 07:27:26,966 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:27:26,966 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:26,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 07:27:26,967 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:27:26,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:27:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1838545940, now seen corresponding path program 1 times [2024-10-11 07:27:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:27:26,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034512315] [2024-10-11 07:27:26,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:27:26,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:27:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:27:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:27:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:27:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:27:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:27:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:27:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:27:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:27:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:27:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:27:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:27:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:27:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:27:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:27:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 07:27:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:27:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 07:27:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:27:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 07:27:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:27:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 07:27:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:27:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 07:27:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:27:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 07:27:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:27:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 07:27:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 07:27:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 07:27:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 07:27:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 07:27:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:34,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-10-11 07:27:34,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:27:34,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034512315] [2024-10-11 07:27:34,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034512315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:27:34,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:27:34,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 07:27:34,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838300811] [2024-10-11 07:27:34,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:27:34,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:27:34,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:27:34,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:27:34,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:27:34,919 INFO L87 Difference]: Start difference. First operand 101 states and 159 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:38,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:27:38,184 INFO L93 Difference]: Finished difference Result 126 states and 185 transitions. [2024-10-11 07:27:38,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 07:27:38,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 182 [2024-10-11 07:27:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:27:38,189 INFO L225 Difference]: With dead ends: 126 [2024-10-11 07:27:38,190 INFO L226 Difference]: Without dead ends: 124 [2024-10-11 07:27:38,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:27:38,192 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 66 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:27:38,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 443 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 07:27:38,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-10-11 07:27:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 101. [2024-10-11 07:27:38,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 60 states have internal predecessors, (81), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-11 07:27:38,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 159 transitions. [2024-10-11 07:27:38,213 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 159 transitions. Word has length 182 [2024-10-11 07:27:38,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:27:38,214 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 159 transitions. [2024-10-11 07:27:38,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 159 transitions. [2024-10-11 07:27:38,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-11 07:27:38,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:27:38,215 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:38,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 07:27:38,216 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:27:38,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:27:38,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1310810115, now seen corresponding path program 1 times [2024-10-11 07:27:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:27:38,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963741702] [2024-10-11 07:27:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:27:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:27:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:27:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:27:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:27:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:27:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:27:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:27:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:27:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:27:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:27:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:27:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:27:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:27:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:27:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:27:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 07:27:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:27:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 07:27:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:27:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 07:27:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:27:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 07:27:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:27:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 07:27:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:27:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 07:27:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:27:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 07:27:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 07:27:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 07:27:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 07:27:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 07:27:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-10-11 07:27:42,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:27:42,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963741702] [2024-10-11 07:27:42,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963741702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:27:42,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:27:42,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 07:27:42,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586869683] [2024-10-11 07:27:42,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:27:42,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:27:42,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:27:42,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:27:42,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:27:42,710 INFO L87 Difference]: Start difference. First operand 101 states and 159 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:44,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:27:44,533 INFO L93 Difference]: Finished difference Result 136 states and 200 transitions. [2024-10-11 07:27:44,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:27:44,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 182 [2024-10-11 07:27:44,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:27:44,535 INFO L225 Difference]: With dead ends: 136 [2024-10-11 07:27:44,535 INFO L226 Difference]: Without dead ends: 134 [2024-10-11 07:27:44,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:27:44,536 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 102 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 07:27:44,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 354 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 07:27:44,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-10-11 07:27:44,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 103. [2024-10-11 07:27:44,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 62 states have internal predecessors, (84), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-11 07:27:44,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 162 transitions. [2024-10-11 07:27:44,556 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 162 transitions. Word has length 182 [2024-10-11 07:27:44,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:27:44,556 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 162 transitions. [2024-10-11 07:27:44,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-11 07:27:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 162 transitions. [2024-10-11 07:27:44,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-11 07:27:44,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:27:44,558 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:44,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 07:27:44,559 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:27:44,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:27:44,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1209149819, now seen corresponding path program 1 times [2024-10-11 07:27:44,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:27:44,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699957751] [2024-10-11 07:27:44,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:27:44,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:27:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:27:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:27:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:27:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:27:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:27:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:27:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:27:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:27:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:27:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 07:27:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 07:27:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 07:27:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 07:27:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 07:27:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 07:27:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 07:27:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 07:27:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 07:27:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 07:27:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 07:27:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 07:27:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 07:27:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 07:27:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 07:27:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 07:27:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 07:27:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 07:27:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 07:27:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 07:27:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 07:27:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 07:27:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:27:48,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-10-11 07:27:48,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:27:48,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699957751] [2024-10-11 07:27:48,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699957751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:27:48,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:27:48,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 07:27:48,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805684896] [2024-10-11 07:27:48,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:27:48,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:27:48,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:27:48,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:27:48,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:27:48,879 INFO L87 Difference]: Start difference. First operand 103 states and 162 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)