./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_floatingpointinfluence_no-floats_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec3847cd5673658302b62e6c9d30f5f024379aa30b6673222fdbc3270a2b4500 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 06:01:38,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 06:01:38,967 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 06:01:38,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 06:01:38,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 06:01:39,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 06:01:39,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 06:01:39,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 06:01:39,007 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 06:01:39,008 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 06:01:39,009 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 06:01:39,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 06:01:39,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 06:01:39,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 06:01:39,012 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 06:01:39,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 06:01:39,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 06:01:39,013 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 06:01:39,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 06:01:39,014 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 06:01:39,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 06:01:39,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 06:01:39,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 06:01:39,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 06:01:39,015 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 06:01:39,016 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 06:01:39,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 06:01:39,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 06:01:39,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 06:01:39,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 06:01:39,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 06:01:39,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 06:01:39,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:01:39,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 06:01:39,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 06:01:39,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 06:01:39,019 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 06:01:39,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 06:01:39,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 06:01:39,020 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 06:01:39,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 06:01:39,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 06:01:39,021 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec3847cd5673658302b62e6c9d30f5f024379aa30b6673222fdbc3270a2b4500 [2024-11-20 06:01:39,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 06:01:39,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 06:01:39,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 06:01:39,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 06:01:39,302 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 06:01:39,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i [2024-11-20 06:01:40,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 06:01:40,920 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 06:01:40,921 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i [2024-11-20 06:01:40,930 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9866ea141/0131f3a96fcf492380a602bc1cbbf8fe/FLAG777a267cf [2024-11-20 06:01:40,943 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9866ea141/0131f3a96fcf492380a602bc1cbbf8fe [2024-11-20 06:01:40,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 06:01:40,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 06:01:40,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 06:01:40,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 06:01:40,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 06:01:40,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:01:40" (1/1) ... [2024-11-20 06:01:40,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c8f3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:40, skipping insertion in model container [2024-11-20 06:01:40,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:01:40" (1/1) ... [2024-11-20 06:01:40,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 06:01:41,151 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i[916,929] [2024-11-20 06:01:41,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:01:41,218 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 06:01:41,234 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i[916,929] [2024-11-20 06:01:41,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:01:41,271 INFO L204 MainTranslator]: Completed translation [2024-11-20 06:01:41,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41 WrapperNode [2024-11-20 06:01:41,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 06:01:41,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 06:01:41,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 06:01:41,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 06:01:41,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,330 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-11-20 06:01:41,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 06:01:41,331 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 06:01:41,331 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 06:01:41,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 06:01:41,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,369 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 06:01:41,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 06:01:41,385 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 06:01:41,385 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 06:01:41,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 06:01:41,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (1/1) ... [2024-11-20 06:01:41,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:01:41,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:01:41,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 06:01:41,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 06:01:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 06:01:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 06:01:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 06:01:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 06:01:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 06:01:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 06:01:41,558 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 06:01:41,562 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 06:01:41,900 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-20 06:01:41,900 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 06:01:41,919 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 06:01:41,923 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 06:01:41,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:41 BoogieIcfgContainer [2024-11-20 06:01:41,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 06:01:41,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 06:01:41,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 06:01:41,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 06:01:41,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:01:40" (1/3) ... [2024-11-20 06:01:41,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49029fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:41, skipping insertion in model container [2024-11-20 06:01:41,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:41" (2/3) ... [2024-11-20 06:01:41,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49029fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:41, skipping insertion in model container [2024-11-20 06:01:41,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:41" (3/3) ... [2024-11-20 06:01:41,931 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-32.i [2024-11-20 06:01:41,949 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 06:01:41,950 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 06:01:42,004 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 06:01:42,010 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;@1500cc94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 06:01:42,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 06:01:42,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 06:01:42,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 06:01:42,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:01:42,028 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:01:42,029 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:01:42,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:01:42,034 INFO L85 PathProgramCache]: Analyzing trace with hash 385929245, now seen corresponding path program 1 times [2024-11-20 06:01:42,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:01:42,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521941747] [2024-11-20 06:01:42,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:01:42,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:01:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:01:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:01:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:01:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:01:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:01:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:01:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:01:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:01:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:01:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:01:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:01:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:01:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:01:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:01:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:01:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:01:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:01:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:01:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:01:42,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:01:42,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521941747] [2024-11-20 06:01:42,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521941747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:01:42,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:01:42,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:01:42,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387982869] [2024-11-20 06:01:42,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:01:42,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:01:42,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:01:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:01:42,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:01:42,893 INFO L87 Difference]: Start difference. First operand has 55 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:01:43,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:01:43,099 INFO L93 Difference]: Finished difference Result 162 states and 287 transitions. [2024-11-20 06:01:43,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 06:01:43,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2024-11-20 06:01:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:01:43,114 INFO L225 Difference]: With dead ends: 162 [2024-11-20 06:01:43,114 INFO L226 Difference]: Without dead ends: 110 [2024-11-20 06:01:43,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:01:43,121 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 72 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 06:01:43,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 206 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 06:01:43,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-20 06:01:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2024-11-20 06:01:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 58 states have internal predecessors, (73), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:01:43,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 145 transitions. [2024-11-20 06:01:43,173 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 145 transitions. Word has length 113 [2024-11-20 06:01:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:01:43,174 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 145 transitions. [2024-11-20 06:01:43,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:01:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 145 transitions. [2024-11-20 06:01:43,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 06:01:43,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:01:43,178 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:01:43,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 06:01:43,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:01:43,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:01:43,179 INFO L85 PathProgramCache]: Analyzing trace with hash -294129125, now seen corresponding path program 1 times [2024-11-20 06:01:43,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:01:43,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645425746] [2024-11-20 06:01:43,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:01:43,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:01:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:01:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:01:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:01:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:01:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:01:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:01:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:01:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:01:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:01:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:01:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:01:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:01:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:01:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:01:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:01:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:01:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:01:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:01:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:47,286 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:01:47,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:01:47,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645425746] [2024-11-20 06:01:47,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645425746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:01:47,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:01:47,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 06:01:47,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345764420] [2024-11-20 06:01:47,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:01:47,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 06:01:47,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:01:47,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 06:01:47,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-20 06:01:47,291 INFO L87 Difference]: Start difference. First operand 97 states and 145 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 06:01:48,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:01:48,688 INFO L93 Difference]: Finished difference Result 121 states and 171 transitions. [2024-11-20 06:01:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 06:01:48,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2024-11-20 06:01:48,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:01:48,691 INFO L225 Difference]: With dead ends: 121 [2024-11-20 06:01:48,691 INFO L226 Difference]: Without dead ends: 119 [2024-11-20 06:01:48,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-11-20 06:01:48,694 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 165 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 06:01:48,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 380 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 06:01:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-20 06:01:48,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 102. [2024-11-20 06:01:48,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.253968253968254) internal successors, (79), 63 states have internal predecessors, (79), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:01:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 151 transitions. [2024-11-20 06:01:48,724 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 151 transitions. Word has length 113 [2024-11-20 06:01:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:01:48,725 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 151 transitions. [2024-11-20 06:01:48,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 06:01:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 151 transitions. [2024-11-20 06:01:48,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-20 06:01:48,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:01:48,727 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:01:48,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 06:01:48,728 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:01:48,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:01:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash -933556435, now seen corresponding path program 1 times [2024-11-20 06:01:48,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:01:48,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531909992] [2024-11-20 06:01:48,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:01:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:01:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:01:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:01:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:01:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:01:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:01:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:01:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:01:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:01:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:01:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:01:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:01:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:01:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:01:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:01:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:01:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:01:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:01:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:01:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:01:51,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:01:51,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531909992] [2024-11-20 06:01:51,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531909992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:01:51,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:01:51,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 06:01:51,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820291715] [2024-11-20 06:01:51,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:01:51,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 06:01:51,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:01:51,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 06:01:51,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-20 06:01:51,491 INFO L87 Difference]: Start difference. First operand 102 states and 151 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:01:52,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:01:52,816 INFO L93 Difference]: Finished difference Result 151 states and 208 transitions. [2024-11-20 06:01:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 06:01:52,817 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-20 06:01:52,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:01:52,819 INFO L225 Difference]: With dead ends: 151 [2024-11-20 06:01:52,819 INFO L226 Difference]: Without dead ends: 149 [2024-11-20 06:01:52,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-11-20 06:01:52,821 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 113 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 06:01:52,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 399 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 06:01:52,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-20 06:01:52,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 109. [2024-11-20 06:01:52,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 70 states have internal predecessors, (89), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:01:52,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2024-11-20 06:01:52,837 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 114 [2024-11-20 06:01:52,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:01:52,838 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2024-11-20 06:01:52,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:01:52,838 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2024-11-20 06:01:52,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-20 06:01:52,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:01:52,840 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:01:52,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 06:01:52,841 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:01:52,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:01:52,841 INFO L85 PathProgramCache]: Analyzing trace with hash 36486516, now seen corresponding path program 1 times [2024-11-20 06:01:52,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:01:52,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708340778] [2024-11-20 06:01:52,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:01:52,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:01:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:01:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:01:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:01:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:01:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:01:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:01:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:01:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:01:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:01:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:01:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:01:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:01:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:01:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:01:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:01:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:01:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:01:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:01:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:01:54,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:01:54,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708340778] [2024-11-20 06:01:54,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708340778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:01:54,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:01:54,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 06:01:54,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304377018] [2024-11-20 06:01:54,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:01:54,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 06:01:54,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:01:54,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 06:01:54,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 06:01:54,619 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:01:55,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:01:55,276 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2024-11-20 06:01:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 06:01:55,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-20 06:01:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:01:55,279 INFO L225 Difference]: With dead ends: 139 [2024-11-20 06:01:55,279 INFO L226 Difference]: Without dead ends: 137 [2024-11-20 06:01:55,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-20 06:01:55,284 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 126 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 06:01:55,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 385 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 06:01:55,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-20 06:01:55,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2024-11-20 06:01:55,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 70 states have internal predecessors, (89), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:01:55,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2024-11-20 06:01:55,308 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 114 [2024-11-20 06:01:55,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:01:55,309 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2024-11-20 06:01:55,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:01:55,310 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2024-11-20 06:01:55,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-20 06:01:55,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:01:55,315 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:01:55,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 06:01:55,316 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:01:55,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:01:55,316 INFO L85 PathProgramCache]: Analyzing trace with hash 886190736, now seen corresponding path program 1 times [2024-11-20 06:01:55,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:01:55,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558809604] [2024-11-20 06:01:55,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:01:55,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:01:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:01:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:01:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:01:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:01:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:01:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:01:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:01:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:01:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:01:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:01:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:01:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:01:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:01:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:01:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:01:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:01:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:01:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:01:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:01:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:01:57,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:01:57,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558809604] [2024-11-20 06:01:57,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558809604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:01:57,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:01:57,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 06:01:57,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907637942] [2024-11-20 06:01:57,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:01:57,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 06:01:57,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:01:57,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 06:01:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-20 06:01:57,851 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:01:59,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:01:59,125 INFO L93 Difference]: Finished difference Result 144 states and 201 transitions. [2024-11-20 06:01:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 06:01:59,126 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-20 06:01:59,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:01:59,128 INFO L225 Difference]: With dead ends: 144 [2024-11-20 06:01:59,128 INFO L226 Difference]: Without dead ends: 142 [2024-11-20 06:01:59,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-11-20 06:01:59,130 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 113 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:01:59,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 392 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:01:59,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-20 06:01:59,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 111. [2024-11-20 06:01:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 72 states have internal predecessors, (93), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:01:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 165 transitions. [2024-11-20 06:01:59,157 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 165 transitions. Word has length 115 [2024-11-20 06:01:59,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:01:59,157 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 165 transitions. [2024-11-20 06:01:59,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:01:59,158 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 165 transitions. [2024-11-20 06:01:59,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-20 06:01:59,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:01:59,159 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:01:59,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 06:01:59,160 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:01:59,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:01:59,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2084428143, now seen corresponding path program 1 times [2024-11-20 06:01:59,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:01:59,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472140577] [2024-11-20 06:01:59,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:01:59,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:01:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:02:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:02:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:02:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:02:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:02:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:02:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:02:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:02:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:02:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:02:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:02:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:02:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:02:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:02:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:02:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:02:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:02:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:02:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:00,075 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:02:00,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:02:00,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472140577] [2024-11-20 06:02:00,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472140577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:02:00,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:02:00,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 06:02:00,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815932481] [2024-11-20 06:02:00,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:02:00,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 06:02:00,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:02:00,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 06:02:00,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-20 06:02:00,079 INFO L87 Difference]: Start difference. First operand 111 states and 165 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:00,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:02:00,793 INFO L93 Difference]: Finished difference Result 298 states and 422 transitions. [2024-11-20 06:02:00,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 06:02:00,794 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-20 06:02:00,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:02:00,796 INFO L225 Difference]: With dead ends: 298 [2024-11-20 06:02:00,796 INFO L226 Difference]: Without dead ends: 190 [2024-11-20 06:02:00,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-11-20 06:02:00,799 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 197 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:02:00,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 511 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:02:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-20 06:02:00,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 121. [2024-11-20 06:02:00,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:02:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 180 transitions. [2024-11-20 06:02:00,816 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 180 transitions. Word has length 115 [2024-11-20 06:02:00,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:02:00,816 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 180 transitions. [2024-11-20 06:02:00,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:00,816 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 180 transitions. [2024-11-20 06:02:00,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-20 06:02:00,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:02:00,821 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:02:00,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 06:02:00,821 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:02:00,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:02:00,822 INFO L85 PathProgramCache]: Analyzing trace with hash -309420781, now seen corresponding path program 1 times [2024-11-20 06:02:00,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:02:00,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390942294] [2024-11-20 06:02:00,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:02:00,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:02:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:02:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:02:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:02:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:02:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:02:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:02:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:02:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:02:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:02:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:02:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:02:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:02:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:02:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:02:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:02:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:02:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:02:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:02:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:02,803 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:02:02,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:02:02,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390942294] [2024-11-20 06:02:02,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390942294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:02:02,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:02:02,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 06:02:02,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111960485] [2024-11-20 06:02:02,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:02:02,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 06:02:02,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:02:02,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 06:02:02,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-20 06:02:02,806 INFO L87 Difference]: Start difference. First operand 121 states and 180 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:03,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:02:03,718 INFO L93 Difference]: Finished difference Result 167 states and 227 transitions. [2024-11-20 06:02:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 06:02:03,718 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-20 06:02:03,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:02:03,720 INFO L225 Difference]: With dead ends: 167 [2024-11-20 06:02:03,720 INFO L226 Difference]: Without dead ends: 165 [2024-11-20 06:02:03,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-20 06:02:03,721 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 97 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:02:03,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 375 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:02:03,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-20 06:02:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 121. [2024-11-20 06:02:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:02:03,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 180 transitions. [2024-11-20 06:02:03,733 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 180 transitions. Word has length 115 [2024-11-20 06:02:03,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:02:03,733 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 180 transitions. [2024-11-20 06:02:03,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 180 transitions. [2024-11-20 06:02:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-20 06:02:03,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:02:03,735 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:02:03,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 06:02:03,735 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:02:03,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:02:03,736 INFO L85 PathProgramCache]: Analyzing trace with hash -598251145, now seen corresponding path program 1 times [2024-11-20 06:02:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:02:03,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946236574] [2024-11-20 06:02:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:02:03,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:02:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:02:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:02:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:02:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:02:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:02:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:02:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:02:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:02:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:02:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:02:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:02:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:02:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:02:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:02:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:02:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:02:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:02:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:02:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:04,854 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:02:04,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:02:04,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946236574] [2024-11-20 06:02:04,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946236574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:02:04,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:02:04,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 06:02:04,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572007093] [2024-11-20 06:02:04,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:02:04,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 06:02:04,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:02:04,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 06:02:04,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-20 06:02:04,856 INFO L87 Difference]: Start difference. First operand 121 states and 180 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:05,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:02:05,785 INFO L93 Difference]: Finished difference Result 198 states and 263 transitions. [2024-11-20 06:02:05,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 06:02:05,786 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2024-11-20 06:02:05,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:02:05,787 INFO L225 Difference]: With dead ends: 198 [2024-11-20 06:02:05,787 INFO L226 Difference]: Without dead ends: 196 [2024-11-20 06:02:05,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-20 06:02:05,788 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 179 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 06:02:05,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 534 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 06:02:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-20 06:02:05,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 122. [2024-11-20 06:02:05,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:02:05,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 182 transitions. [2024-11-20 06:02:05,802 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 182 transitions. Word has length 116 [2024-11-20 06:02:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:02:05,802 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 182 transitions. [2024-11-20 06:02:05,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:05,802 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 182 transitions. [2024-11-20 06:02:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-20 06:02:05,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:02:05,803 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:02:05,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 06:02:05,804 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:02:05,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:02:05,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1407597771, now seen corresponding path program 1 times [2024-11-20 06:02:05,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:02:05,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638934523] [2024-11-20 06:02:05,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:02:05,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:02:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:02:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:02:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:02:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:02:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:02:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:02:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:02:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:02:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:02:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:02:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:02:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:02:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:02:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:02:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:02:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:02:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:02:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:02:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:02:07,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:02:07,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638934523] [2024-11-20 06:02:07,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638934523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:02:07,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:02:07,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 06:02:07,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151688652] [2024-11-20 06:02:07,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:02:07,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 06:02:07,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:02:07,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 06:02:07,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-20 06:02:07,391 INFO L87 Difference]: Start difference. First operand 122 states and 182 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:02:08,736 INFO L93 Difference]: Finished difference Result 193 states and 258 transitions. [2024-11-20 06:02:08,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-20 06:02:08,736 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2024-11-20 06:02:08,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:02:08,738 INFO L225 Difference]: With dead ends: 193 [2024-11-20 06:02:08,738 INFO L226 Difference]: Without dead ends: 191 [2024-11-20 06:02:08,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=255, Invalid=801, Unknown=0, NotChecked=0, Total=1056 [2024-11-20 06:02:08,739 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 191 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 06:02:08,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 502 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 06:02:08,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-20 06:02:08,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 124. [2024-11-20 06:02:08,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 85 states have (on average 1.3294117647058823) internal successors, (113), 85 states have internal predecessors, (113), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:02:08,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 185 transitions. [2024-11-20 06:02:08,750 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 185 transitions. Word has length 116 [2024-11-20 06:02:08,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:02:08,750 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 185 transitions. [2024-11-20 06:02:08,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 185 transitions. [2024-11-20 06:02:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-20 06:02:08,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:02:08,752 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:02:08,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 06:02:08,752 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:02:08,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:02:08,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1602400120, now seen corresponding path program 1 times [2024-11-20 06:02:08,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:02:08,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013475398] [2024-11-20 06:02:08,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:02:08,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:02:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:02:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:02:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:02:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:02:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:02:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:02:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:02:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:02:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:02:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:02:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:02:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:02:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:02:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:02:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:02:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:02:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:02:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:02:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 06:02:10,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:02:10,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013475398] [2024-11-20 06:02:10,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013475398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:02:10,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:02:10,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 06:02:10,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454742324] [2024-11-20 06:02:10,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:02:10,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 06:02:10,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:02:10,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 06:02:10,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 06:02:10,580 INFO L87 Difference]: Start difference. First operand 124 states and 185 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:11,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:02:11,568 INFO L93 Difference]: Finished difference Result 167 states and 230 transitions. [2024-11-20 06:02:11,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 06:02:11,568 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 117 [2024-11-20 06:02:11,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:02:11,570 INFO L225 Difference]: With dead ends: 167 [2024-11-20 06:02:11,570 INFO L226 Difference]: Without dead ends: 165 [2024-11-20 06:02:11,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2024-11-20 06:02:11,571 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 101 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 06:02:11,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 415 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 06:02:11,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-20 06:02:11,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 125. [2024-11-20 06:02:11,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 86 states have internal predecessors, (115), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:02:11,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 187 transitions. [2024-11-20 06:02:11,581 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 187 transitions. Word has length 117 [2024-11-20 06:02:11,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:02:11,589 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 187 transitions. [2024-11-20 06:02:11,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 06:02:11,590 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 187 transitions. [2024-11-20 06:02:11,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-20 06:02:11,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:02:11,594 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:02:11,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 06:02:11,594 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:02:11,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:02:11,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1723789679, now seen corresponding path program 1 times [2024-11-20 06:02:11,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:02:11,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725018581] [2024-11-20 06:02:11,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:02:11,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:02:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:02:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:02:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:02:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:02:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:02:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:02:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:02:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:02:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:02:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:02:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:02:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:02:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:02:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:02:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:02:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:02:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:02:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:02:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:02:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 06:02:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:02:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 06:02:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-20 06:02:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 06:02:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-20 06:02:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 06:02:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-20 06:02:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-20 06:02:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-20 06:02:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-20 06:02:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-20 06:02:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-20 06:02:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-20 06:02:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-20 06:02:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-20 06:02:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-20 06:02:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-20 06:02:11,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:02:11,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725018581] [2024-11-20 06:02:11,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725018581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:02:11,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:02:11,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:02:11,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196169714] [2024-11-20 06:02:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:02:11,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:02:11,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:02:11,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:02:11,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:02:11,737 INFO L87 Difference]: Start difference. First operand 125 states and 187 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-20 06:02:11,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:02:11,805 INFO L93 Difference]: Finished difference Result 182 states and 271 transitions. [2024-11-20 06:02:11,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 06:02:11,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 224 [2024-11-20 06:02:11,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:02:11,807 INFO L225 Difference]: With dead ends: 182 [2024-11-20 06:02:11,807 INFO L226 Difference]: Without dead ends: 118 [2024-11-20 06:02:11,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:02:11,808 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 06:02:11,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 70 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 06:02:11,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-20 06:02:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-20 06:02:11,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 79 states have (on average 1.2911392405063291) internal successors, (102), 79 states have internal predecessors, (102), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 06:02:11,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 174 transitions. [2024-11-20 06:02:11,817 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 174 transitions. Word has length 224 [2024-11-20 06:02:11,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:02:11,818 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 174 transitions. [2024-11-20 06:02:11,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-20 06:02:11,819 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 174 transitions. [2024-11-20 06:02:11,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-20 06:02:11,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:02:11,821 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:02:11,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 06:02:11,821 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:02:11,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:02:11,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1891119247, now seen corresponding path program 1 times [2024-11-20 06:02:11,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:02:11,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874784652] [2024-11-20 06:02:11,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:02:11,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:02:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:02:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:02:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:02:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:02:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:02:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:02:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:02:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:02:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:02:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:02:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:02:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:02:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:02:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:02:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:02:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:02:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:02:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:02:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 06:02:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 06:02:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 06:02:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 06:02:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-20 06:02:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 06:02:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-20 06:02:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 06:02:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-20 06:02:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-20 06:02:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-20 06:02:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-20 06:02:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-20 06:02:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-20 06:02:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-20 06:02:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-20 06:02:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-20 06:02:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-20 06:02:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2024-11-20 06:02:13,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:02:13,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874784652] [2024-11-20 06:02:13,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874784652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 06:02:13,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240016975] [2024-11-20 06:02:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:02:13,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 06:02:13,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:02:13,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 06:02:13,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 06:02:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:02:13,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 06:02:13,975 INFO L278 TraceCheckSpWp]: Computing forward predicates...