./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-34.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 c28c916d59e15fbb84eacdc574b21cac712312e1644083eaa396f6071a295218 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 13:48:52,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 13:48:52,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 13:48:52,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 13:48:52,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 13:48:52,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 13:48:52,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 13:48:52,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 13:48:52,958 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 13:48:52,958 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 13:48:52,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 13:48:52,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 13:48:52,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 13:48:52,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 13:48:52,962 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 13:48:52,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 13:48:52,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 13:48:52,963 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 13:48:52,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 13:48:52,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 13:48:52,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 13:48:52,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 13:48:52,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 13:48:52,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 13:48:52,968 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 13:48:52,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 13:48:52,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 13:48:52,969 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 13:48:52,969 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 13:48:52,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 13:48:52,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 13:48:52,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 13:48:52,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 13:48:52,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 13:48:52,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 13:48:52,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 13:48:52,971 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 13:48:52,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 13:48:52,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 13:48:52,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 13:48:52,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 13:48:52,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 13:48:52,973 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c28c916d59e15fbb84eacdc574b21cac712312e1644083eaa396f6071a295218 [2024-11-16 13:48:53,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 13:48:53,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 13:48:53,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 13:48:53,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 13:48:53,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 13:48:53,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-34.i [2024-11-16 13:48:54,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 13:48:54,931 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 13:48:54,933 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-34.i [2024-11-16 13:48:54,945 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93999f695/6e14a142c85644eb85911a4536339ec9/FLAG0015ca334 [2024-11-16 13:48:54,957 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93999f695/6e14a142c85644eb85911a4536339ec9 [2024-11-16 13:48:54,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 13:48:54,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 13:48:54,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 13:48:54,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 13:48:54,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 13:48:54,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:48:54" (1/1) ... [2024-11-16 13:48:54,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d2cccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:54, skipping insertion in model container [2024-11-16 13:48:54,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:48:54" (1/1) ... [2024-11-16 13:48:54,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 13:48:55,213 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-34.i[919,932] [2024-11-16 13:48:55,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 13:48:55,308 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 13:48:55,319 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-34.i[919,932] [2024-11-16 13:48:55,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 13:48:55,390 INFO L204 MainTranslator]: Completed translation [2024-11-16 13:48:55,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55 WrapperNode [2024-11-16 13:48:55,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 13:48:55,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 13:48:55,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 13:48:55,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 13:48:55,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,448 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 228 [2024-11-16 13:48:55,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 13:48:55,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 13:48:55,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 13:48:55,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 13:48:55,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,473 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,494 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]. [2024-11-16 13:48:55,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,506 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 13:48:55,524 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 13:48:55,524 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 13:48:55,524 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 13:48:55,525 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (1/1) ... [2024-11-16 13:48:55,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 13:48:55,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 13:48:55,558 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) [2024-11-16 13:48:55,565 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 [2024-11-16 13:48:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 13:48:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 13:48:55,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 13:48:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 13:48:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 13:48:55,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 13:48:55,684 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 13:48:55,686 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 13:48:56,092 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L180: havoc property_#t~bitwise18#1;havoc property_#t~ite20#1;havoc property_#t~bitwise19#1;havoc property_#t~short21#1; [2024-11-16 13:48:56,144 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-16 13:48:56,145 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 13:48:56,168 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 13:48:56,169 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 13:48:56,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 01:48:56 BoogieIcfgContainer [2024-11-16 13:48:56,169 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 13:48:56,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 13:48:56,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 13:48:56,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 13:48:56,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 01:48:54" (1/3) ... [2024-11-16 13:48:56,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fac5faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:48:56, skipping insertion in model container [2024-11-16 13:48:56,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:48:55" (2/3) ... [2024-11-16 13:48:56,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fac5faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:48:56, skipping insertion in model container [2024-11-16 13:48:56,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 01:48:56" (3/3) ... [2024-11-16 13:48:56,181 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-34.i [2024-11-16 13:48:56,200 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 13:48:56,201 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 13:48:56,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 13:48:56,286 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;@2a87511, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 13:48:56,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 13:48:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 74 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 13:48:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 13:48:56,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:48:56,307 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:48:56,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:48:56,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:48:56,312 INFO L85 PathProgramCache]: Analyzing trace with hash 850749427, now seen corresponding path program 1 times [2024-11-16 13:48:56,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:48:56,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254518683] [2024-11-16 13:48:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:48:56,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:48:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:48:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:48:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:48:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:48:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:48:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:48:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:48:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:48:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:48:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:48:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:48:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:48:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:48:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:48:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:48:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:48:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:48:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:48:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:48:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:48:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:48:56,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:48:56,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254518683] [2024-11-16 13:48:56,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254518683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:48:56,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:48:56,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 13:48:56,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178789202] [2024-11-16 13:48:56,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:48:56,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 13:48:56,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:48:56,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 13:48:56,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 13:48:56,878 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 74 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 13:48:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:48:56,920 INFO L93 Difference]: Finished difference Result 184 states and 311 transitions. [2024-11-16 13:48:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 13:48:56,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 143 [2024-11-16 13:48:56,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:48:56,931 INFO L225 Difference]: With dead ends: 184 [2024-11-16 13:48:56,932 INFO L226 Difference]: Without dead ends: 91 [2024-11-16 13:48:56,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 13:48:56,939 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 13:48:56,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 13:48:56,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-16 13:48:56,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-16 13:48:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 69 states have (on average 1.463768115942029) internal successors, (101), 69 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 13:48:56,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 141 transitions. [2024-11-16 13:48:56,983 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 141 transitions. Word has length 143 [2024-11-16 13:48:56,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:48:56,984 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 141 transitions. [2024-11-16 13:48:56,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 13:48:56,984 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 141 transitions. [2024-11-16 13:48:56,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 13:48:56,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:48:56,991 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:48:56,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 13:48:56,991 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:48:56,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:48:56,992 INFO L85 PathProgramCache]: Analyzing trace with hash 567072913, now seen corresponding path program 1 times [2024-11-16 13:48:56,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:48:56,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715576735] [2024-11-16 13:48:56,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:48:56,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:48:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:48:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:48:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:48:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:48:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:48:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:48:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:48:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:48:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:48:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:48:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:48:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:48:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:48:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:48:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:48:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:48:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:48:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:48:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:48:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:48:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:57,753 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:48:57,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:48:57,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715576735] [2024-11-16 13:48:57,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715576735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:48:57,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:48:57,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 13:48:57,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73973848] [2024-11-16 13:48:57,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:48:57,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 13:48:57,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:48:57,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 13:48:57,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 13:48:57,762 INFO L87 Difference]: Start difference. First operand 91 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:48:57,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:48:57,985 INFO L93 Difference]: Finished difference Result 309 states and 483 transitions. [2024-11-16 13:48:57,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 13:48:57,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-16 13:48:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:48:57,990 INFO L225 Difference]: With dead ends: 309 [2024-11-16 13:48:57,990 INFO L226 Difference]: Without dead ends: 221 [2024-11-16 13:48:57,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:48:57,995 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 176 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 13:48:57,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 447 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 13:48:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-16 13:48:58,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 178. [2024-11-16 13:48:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 135 states have (on average 1.4666666666666666) internal successors, (198), 135 states have internal predecessors, (198), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-16 13:48:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 278 transitions. [2024-11-16 13:48:58,048 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 278 transitions. Word has length 143 [2024-11-16 13:48:58,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:48:58,049 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 278 transitions. [2024-11-16 13:48:58,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:48:58,050 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 278 transitions. [2024-11-16 13:48:58,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-16 13:48:58,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:48:58,055 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:48:58,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 13:48:58,055 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:48:58,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:48:58,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1284235500, now seen corresponding path program 1 times [2024-11-16 13:48:58,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:48:58,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783005842] [2024-11-16 13:48:58,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:48:58,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:48:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:48:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:48:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:48:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:48:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:48:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:48:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:48:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:48:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:48:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:48:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:48:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:48:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:48:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:48:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:48:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:48:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:48:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:48:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:48:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:48:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:48:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:48:58,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:48:58,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783005842] [2024-11-16 13:48:58,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783005842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:48:58,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:48:58,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 13:48:58,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411043513] [2024-11-16 13:48:58,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:48:58,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 13:48:58,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:48:58,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 13:48:58,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:48:58,486 INFO L87 Difference]: Start difference. First operand 178 states and 278 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:48:58,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:48:58,778 INFO L93 Difference]: Finished difference Result 524 states and 818 transitions. [2024-11-16 13:48:58,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 13:48:58,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-16 13:48:58,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:48:58,784 INFO L225 Difference]: With dead ends: 524 [2024-11-16 13:48:58,785 INFO L226 Difference]: Without dead ends: 349 [2024-11-16 13:48:58,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 13:48:58,788 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 225 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 13:48:58,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 477 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 13:48:58,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-16 13:48:58,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 182. [2024-11-16 13:48:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 139 states have (on average 1.4532374100719425) internal successors, (202), 139 states have internal predecessors, (202), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-16 13:48:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 282 transitions. [2024-11-16 13:48:58,836 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 282 transitions. Word has length 144 [2024-11-16 13:48:58,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:48:58,836 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 282 transitions. [2024-11-16 13:48:58,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:48:58,837 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 282 transitions. [2024-11-16 13:48:58,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 13:48:58,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:48:58,842 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:48:58,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 13:48:58,842 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:48:58,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:48:58,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1151871218, now seen corresponding path program 1 times [2024-11-16 13:48:58,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:48:58,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595150524] [2024-11-16 13:48:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:48:58,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:48:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:49:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:49:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:49:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:49:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:49:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:49:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:49:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:49:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:49:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:49:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:49:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:49:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:49:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:49:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:49:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:49:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:49:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:49:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:49:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:49:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:49:00,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:49:00,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595150524] [2024-11-16 13:49:00,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595150524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:49:00,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:49:00,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 13:49:00,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570343085] [2024-11-16 13:49:00,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:49:00,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 13:49:00,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:49:00,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 13:49:00,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 13:49:00,873 INFO L87 Difference]: Start difference. First operand 182 states and 282 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:01,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:49:01,304 INFO L93 Difference]: Finished difference Result 601 states and 938 transitions. [2024-11-16 13:49:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 13:49:01,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 13:49:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:49:01,310 INFO L225 Difference]: With dead ends: 601 [2024-11-16 13:49:01,311 INFO L226 Difference]: Without dead ends: 422 [2024-11-16 13:49:01,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 13:49:01,313 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 288 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 13:49:01,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 493 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 13:49:01,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-16 13:49:01,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 242. [2024-11-16 13:49:01,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 178 states have (on average 1.4213483146067416) internal successors, (253), 178 states have internal predecessors, (253), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 13:49:01,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 373 transitions. [2024-11-16 13:49:01,347 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 373 transitions. Word has length 145 [2024-11-16 13:49:01,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:49:01,348 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 373 transitions. [2024-11-16 13:49:01,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:01,349 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 373 transitions. [2024-11-16 13:49:01,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 13:49:01,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:49:01,350 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:49:01,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 13:49:01,351 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:49:01,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:49:01,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1093064215, now seen corresponding path program 1 times [2024-11-16 13:49:01,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:49:01,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441856022] [2024-11-16 13:49:01,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:49:01,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:49:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:49:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:49:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:49:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:49:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:49:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:49:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:49:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:49:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:49:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:49:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:49:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:49:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:49:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:49:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:49:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:49:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:49:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:49:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:49:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:49:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:21,422 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:49:21,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:49:21,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441856022] [2024-11-16 13:49:21,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441856022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:49:21,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:49:21,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 13:49:21,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673403773] [2024-11-16 13:49:21,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:49:21,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 13:49:21,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:49:21,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 13:49:21,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-16 13:49:21,425 INFO L87 Difference]: Start difference. First operand 242 states and 373 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:22,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:49:22,953 INFO L93 Difference]: Finished difference Result 787 states and 1210 transitions. [2024-11-16 13:49:22,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 13:49:22,954 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 13:49:22,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:49:22,960 INFO L225 Difference]: With dead ends: 787 [2024-11-16 13:49:22,961 INFO L226 Difference]: Without dead ends: 608 [2024-11-16 13:49:22,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-16 13:49:22,962 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 504 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 13:49:22,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 882 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 13:49:22,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-16 13:49:22,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 373. [2024-11-16 13:49:22,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 297 states have (on average 1.4579124579124578) internal successors, (433), 299 states have internal predecessors, (433), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 13:49:22,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 573 transitions. [2024-11-16 13:49:22,998 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 573 transitions. Word has length 145 [2024-11-16 13:49:22,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:49:22,999 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 573 transitions. [2024-11-16 13:49:23,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:23,000 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 573 transitions. [2024-11-16 13:49:23,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 13:49:23,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:49:23,002 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:49:23,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 13:49:23,002 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:49:23,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:49:23,003 INFO L85 PathProgramCache]: Analyzing trace with hash 414487594, now seen corresponding path program 1 times [2024-11-16 13:49:23,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:49:23,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801028324] [2024-11-16 13:49:23,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:49:23,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:49:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:49:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:49:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:49:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:49:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:49:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:49:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:49:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:49:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:49:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:49:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:49:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:49:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:49:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:49:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:49:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:49:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:49:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:49:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:49:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:49:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:49:25,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:49:25,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801028324] [2024-11-16 13:49:25,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801028324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:49:25,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:49:25,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 13:49:25,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993912611] [2024-11-16 13:49:25,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:49:25,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 13:49:25,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:49:25,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 13:49:25,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 13:49:25,676 INFO L87 Difference]: Start difference. First operand 373 states and 573 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:49:26,807 INFO L93 Difference]: Finished difference Result 1185 states and 1831 transitions. [2024-11-16 13:49:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 13:49:26,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 13:49:26,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:49:26,813 INFO L225 Difference]: With dead ends: 1185 [2024-11-16 13:49:26,813 INFO L226 Difference]: Without dead ends: 879 [2024-11-16 13:49:26,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-16 13:49:26,814 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 558 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 13:49:26,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 509 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 13:49:26,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-11-16 13:49:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 442. [2024-11-16 13:49:26,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 366 states have (on average 1.4316939890710383) internal successors, (524), 368 states have internal predecessors, (524), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 13:49:26,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 664 transitions. [2024-11-16 13:49:26,859 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 664 transitions. Word has length 145 [2024-11-16 13:49:26,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:49:26,860 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 664 transitions. [2024-11-16 13:49:26,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:26,861 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 664 transitions. [2024-11-16 13:49:26,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 13:49:26,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:49:26,862 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:49:26,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 13:49:26,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:49:26,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:49:26,863 INFO L85 PathProgramCache]: Analyzing trace with hash 260245482, now seen corresponding path program 1 times [2024-11-16 13:49:26,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:49:26,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853301472] [2024-11-16 13:49:26,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:49:26,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:49:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:49:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:49:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:49:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:49:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:49:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:49:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:49:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:49:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:49:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:49:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:49:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:49:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:49:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:49:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:49:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:49:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:49:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:49:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:49:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:49:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:49:29,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:49:29,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853301472] [2024-11-16 13:49:29,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853301472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:49:29,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:49:29,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 13:49:29,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902780377] [2024-11-16 13:49:29,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:49:29,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 13:49:29,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:49:29,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 13:49:29,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 13:49:29,835 INFO L87 Difference]: Start difference. First operand 442 states and 664 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:30,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:49:30,842 INFO L93 Difference]: Finished difference Result 1285 states and 1944 transitions. [2024-11-16 13:49:30,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 13:49:30,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 13:49:30,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:49:30,848 INFO L225 Difference]: With dead ends: 1285 [2024-11-16 13:49:30,848 INFO L226 Difference]: Without dead ends: 912 [2024-11-16 13:49:30,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 13:49:30,850 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 444 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 13:49:30,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 528 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 13:49:30,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-16 13:49:30,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 727. [2024-11-16 13:49:30,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 651 states have (on average 1.5007680491551458) internal successors, (977), 653 states have internal predecessors, (977), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 13:49:30,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1117 transitions. [2024-11-16 13:49:30,889 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1117 transitions. Word has length 145 [2024-11-16 13:49:30,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:49:30,890 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1117 transitions. [2024-11-16 13:49:30,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1117 transitions. [2024-11-16 13:49:30,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 13:49:30,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:49:30,892 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:49:30,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 13:49:30,892 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:49:30,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:49:30,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1105039789, now seen corresponding path program 1 times [2024-11-16 13:49:30,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:49:30,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095464346] [2024-11-16 13:49:30,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:49:30,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:49:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:49:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:49:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:49:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:49:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:49:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:49:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:49:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:49:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:49:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:49:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:49:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:49:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:49:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:49:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:49:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:49:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:49:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:49:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:49:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:49:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:49:31,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:49:31,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095464346] [2024-11-16 13:49:31,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095464346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:49:31,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:49:31,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 13:49:31,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111514262] [2024-11-16 13:49:31,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:49:31,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 13:49:31,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:49:31,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 13:49:31,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 13:49:31,242 INFO L87 Difference]: Start difference. First operand 727 states and 1117 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:31,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:49:31,461 INFO L93 Difference]: Finished difference Result 1192 states and 1840 transitions. [2024-11-16 13:49:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 13:49:31,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 13:49:31,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:49:31,465 INFO L225 Difference]: With dead ends: 1192 [2024-11-16 13:49:31,466 INFO L226 Difference]: Without dead ends: 710 [2024-11-16 13:49:31,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:49:31,468 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 108 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 13:49:31,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 344 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 13:49:31,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-16 13:49:31,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 651. [2024-11-16 13:49:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 575 states have (on average 1.471304347826087) internal successors, (846), 577 states have internal predecessors, (846), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 13:49:31,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 986 transitions. [2024-11-16 13:49:31,509 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 986 transitions. Word has length 145 [2024-11-16 13:49:31,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:49:31,511 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 986 transitions. [2024-11-16 13:49:31,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:31,512 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 986 transitions. [2024-11-16 13:49:31,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 13:49:31,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:49:31,514 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:49:31,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 13:49:31,514 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:49:31,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:49:31,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1160070968, now seen corresponding path program 1 times [2024-11-16 13:49:31,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:49:31,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325978403] [2024-11-16 13:49:31,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:49:31,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:49:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:49:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:49:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:49:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:49:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:49:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:49:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:49:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:49:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:49:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:49:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:49:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:49:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:49:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:49:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:49:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:49:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:49:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:49:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:49:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:49:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:45,867 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:49:45,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:49:45,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325978403] [2024-11-16 13:49:45,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325978403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:49:45,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:49:45,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 13:49:45,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871587189] [2024-11-16 13:49:45,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:49:45,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 13:49:45,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:49:45,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 13:49:45,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-16 13:49:45,870 INFO L87 Difference]: Start difference. First operand 651 states and 986 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:47,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:49:47,331 INFO L93 Difference]: Finished difference Result 1140 states and 1749 transitions. [2024-11-16 13:49:47,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 13:49:47,332 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 13:49:47,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:49:47,338 INFO L225 Difference]: With dead ends: 1140 [2024-11-16 13:49:47,338 INFO L226 Difference]: Without dead ends: 959 [2024-11-16 13:49:47,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-16 13:49:47,340 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 458 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 13:49:47,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1394 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 13:49:47,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-11-16 13:49:47,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 806. [2024-11-16 13:49:47,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 709 states have (on average 1.473906911142454) internal successors, (1045), 711 states have internal predecessors, (1045), 90 states have call successors, (90), 6 states have call predecessors, (90), 6 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-16 13:49:47,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1225 transitions. [2024-11-16 13:49:47,384 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1225 transitions. Word has length 145 [2024-11-16 13:49:47,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:49:47,384 INFO L471 AbstractCegarLoop]: Abstraction has 806 states and 1225 transitions. [2024-11-16 13:49:47,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:47,385 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1225 transitions. [2024-11-16 13:49:47,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 13:49:47,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:49:47,387 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:49:47,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 13:49:47,388 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:49:47,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:49:47,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1509527144, now seen corresponding path program 1 times [2024-11-16 13:49:47,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:49:47,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899469520] [2024-11-16 13:49:47,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:49:47,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:49:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:49:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:49:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:49:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:49:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:49:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:49:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:49:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:49:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:49:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:49:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:49:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:49:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:49:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:49:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:49:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:49:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:49:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:49:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:49:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:49:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:49:48,914 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:49:48,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:49:48,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899469520] [2024-11-16 13:49:48,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899469520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:49:48,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:49:48,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 13:49:48,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134336246] [2024-11-16 13:49:48,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:49:48,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 13:49:48,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:49:48,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 13:49:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 13:49:48,916 INFO L87 Difference]: Start difference. First operand 806 states and 1225 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:49,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:49:49,647 INFO L93 Difference]: Finished difference Result 1785 states and 2762 transitions. [2024-11-16 13:49:49,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 13:49:49,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 13:49:49,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:49:49,653 INFO L225 Difference]: With dead ends: 1785 [2024-11-16 13:49:49,654 INFO L226 Difference]: Without dead ends: 1333 [2024-11-16 13:49:49,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-16 13:49:49,656 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 343 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 13:49:49,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 863 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 13:49:49,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-11-16 13:49:49,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 787. [2024-11-16 13:49:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 695 states have (on average 1.4719424460431654) internal successors, (1023), 696 states have internal predecessors, (1023), 85 states have call successors, (85), 6 states have call predecessors, (85), 6 states have return successors, (85), 84 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-16 13:49:49,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1193 transitions. [2024-11-16 13:49:49,705 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1193 transitions. Word has length 146 [2024-11-16 13:49:49,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:49:49,706 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 1193 transitions. [2024-11-16 13:49:49,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:49:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1193 transitions. [2024-11-16 13:49:49,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 13:49:49,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:49:49,709 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:49:49,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 13:49:49,709 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:49:49,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:49:49,710 INFO L85 PathProgramCache]: Analyzing trace with hash -567682199, now seen corresponding path program 1 times [2024-11-16 13:49:49,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:49:49,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652707857] [2024-11-16 13:49:49,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:49:49,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:49:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:50:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:50:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 13:50:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:50:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 13:50:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:50:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 13:50:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:50:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 13:50:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:50:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 13:50:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:50:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 13:50:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:50:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:50:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 13:50:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 13:50:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:50:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:50:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 13:50:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 13:50:03,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:50:03,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652707857] [2024-11-16 13:50:03,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652707857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:50:03,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:50:03,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 13:50:03,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530691566] [2024-11-16 13:50:03,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:50:03,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 13:50:03,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:50:03,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 13:50:03,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-16 13:50:03,459 INFO L87 Difference]: Start difference. First operand 787 states and 1193 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:50:04,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:50:04,301 INFO L93 Difference]: Finished difference Result 1366 states and 2097 transitions. [2024-11-16 13:50:04,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 13:50:04,301 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 13:50:04,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:50:04,306 INFO L225 Difference]: With dead ends: 1366 [2024-11-16 13:50:04,306 INFO L226 Difference]: Without dead ends: 1081 [2024-11-16 13:50:04,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-16 13:50:04,308 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 401 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 13:50:04,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1513 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 13:50:04,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-16 13:50:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 731. [2024-11-16 13:50:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 644 states have (on average 1.4627329192546583) internal successors, (942), 644 states have internal predecessors, (942), 80 states have call successors, (80), 6 states have call predecessors, (80), 6 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-16 13:50:04,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1102 transitions. [2024-11-16 13:50:04,353 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1102 transitions. Word has length 146 [2024-11-16 13:50:04,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:50:04,353 INFO L471 AbstractCegarLoop]: Abstraction has 731 states and 1102 transitions. [2024-11-16 13:50:04,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 13:50:04,354 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1102 transitions. [2024-11-16 13:50:04,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 13:50:04,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:50:04,356 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 13:50:04,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 13:50:04,356 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:50:04,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:50:04,357 INFO L85 PathProgramCache]: Analyzing trace with hash 313028867, now seen corresponding path program 1 times [2024-11-16 13:50:04,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:50:04,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413558582] [2024-11-16 13:50:04,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:50:04,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:50:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat