./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_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 f39f68f55c90deb8496cdc58f18787083a238252dfdfe92f73d39acb627ae3ba --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 06:37:32,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 06:37:32,403 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 06:37:32,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 06:37:32,406 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 06:37:32,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 06:37:32,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 06:37:32,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 06:37:32,438 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 06:37:32,438 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 06:37:32,439 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 06:37:32,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 06:37:32,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 06:37:32,441 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 06:37:32,441 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 06:37:32,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 06:37:32,441 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 06:37:32,442 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 06:37:32,442 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 06:37:32,442 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 06:37:32,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 06:37:32,443 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 06:37:32,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 06:37:32,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 06:37:32,443 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 06:37:32,444 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 06:37:32,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 06:37:32,444 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 06:37:32,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 06:37:32,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 06:37:32,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 06:37:32,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 06:37:32,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 06:37:32,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 06:37:32,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 06:37:32,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 06:37:32,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 06:37:32,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 06:37:32,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 06:37:32,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 06:37:32,447 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 06:37:32,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 06:37:32,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f39f68f55c90deb8496cdc58f18787083a238252dfdfe92f73d39acb627ae3ba [2024-11-22 06:37:32,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 06:37:32,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 06:37:32,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 06:37:32,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 06:37:32,701 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 06:37:32,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i [2024-11-22 06:37:34,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 06:37:34,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 06:37:34,326 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i [2024-11-22 06:37:34,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4905d8343/09b7f1c12d064133b96ddf5efcc4a334/FLAG4906af0bd [2024-11-22 06:37:34,349 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4905d8343/09b7f1c12d064133b96ddf5efcc4a334 [2024-11-22 06:37:34,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 06:37:34,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 06:37:34,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 06:37:34,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 06:37:34,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 06:37:34,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6926f54c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34, skipping insertion in model container [2024-11-22 06:37:34,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 06:37:34,504 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_codestructure_steplocals_file-34.i[917,930] [2024-11-22 06:37:34,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 06:37:34,552 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 06:37:34,563 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_codestructure_steplocals_file-34.i[917,930] [2024-11-22 06:37:34,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 06:37:34,603 INFO L204 MainTranslator]: Completed translation [2024-11-22 06:37:34,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34 WrapperNode [2024-11-22 06:37:34,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 06:37:34,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 06:37:34,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 06:37:34,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 06:37:34,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,662 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 202 [2024-11-22 06:37:34,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 06:37:34,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 06:37:34,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 06:37:34,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 06:37:34,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,690 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]. [2024-11-22 06:37:34,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 06:37:34,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 06:37:34,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 06:37:34,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 06:37:34,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (1/1) ... [2024-11-22 06:37:34,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 06:37:34,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:37:34,740 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) [2024-11-22 06:37:34,742 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 [2024-11-22 06:37:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 06:37:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 06:37:34,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 06:37:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 06:37:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 06:37:34,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 06:37:34,832 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 06:37:34,834 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 06:37:35,218 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-22 06:37:35,219 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 06:37:35,236 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 06:37:35,237 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 06:37:35,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:37:35 BoogieIcfgContainer [2024-11-22 06:37:35,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 06:37:35,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 06:37:35,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 06:37:35,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 06:37:35,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:37:34" (1/3) ... [2024-11-22 06:37:35,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2466a696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:37:35, skipping insertion in model container [2024-11-22 06:37:35,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:37:34" (2/3) ... [2024-11-22 06:37:35,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2466a696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:37:35, skipping insertion in model container [2024-11-22 06:37:35,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:37:35" (3/3) ... [2024-11-22 06:37:35,247 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-34.i [2024-11-22 06:37:35,262 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 06:37:35,262 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 06:37:35,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 06:37:35,336 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;@7b091109, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 06:37:35,340 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 06:37:35,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:37:35,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-22 06:37:35,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:35,365 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:35,366 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:35,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:35,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2122244211, now seen corresponding path program 1 times [2024-11-22 06:37:35,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:35,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394980287] [2024-11-22 06:37:35,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:35,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:35,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:35,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394980287] [2024-11-22 06:37:35,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394980287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:35,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:35,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 06:37:35,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767872477] [2024-11-22 06:37:35,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:35,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 06:37:35,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:35,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 06:37:35,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 06:37:35,974 INFO L87 Difference]: Start difference. First operand has 94 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:36,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:36,041 INFO L93 Difference]: Finished difference Result 222 states and 375 transitions. [2024-11-22 06:37:36,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 06:37:36,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-22 06:37:36,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:36,052 INFO L225 Difference]: With dead ends: 222 [2024-11-22 06:37:36,052 INFO L226 Difference]: Without dead ends: 131 [2024-11-22 06:37:36,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 06:37:36,059 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 55 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:36,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 268 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:37:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-22 06:37:36,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 96. [2024-11-22 06:37:36,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 67 states have internal predecessors, (93), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:37:36,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 147 transitions. [2024-11-22 06:37:36,107 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 147 transitions. Word has length 173 [2024-11-22 06:37:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:36,110 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 147 transitions. [2024-11-22 06:37:36,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 147 transitions. [2024-11-22 06:37:36,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-22 06:37:36,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:36,116 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:36,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 06:37:36,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:36,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:36,118 INFO L85 PathProgramCache]: Analyzing trace with hash 842380533, now seen corresponding path program 1 times [2024-11-22 06:37:36,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:36,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279447588] [2024-11-22 06:37:36,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:36,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:37,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:37,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279447588] [2024-11-22 06:37:37,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279447588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:37,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:37,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:37:37,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182574309] [2024-11-22 06:37:37,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:37,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:37:37,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:37,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:37:37,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:37:37,659 INFO L87 Difference]: Start difference. First operand 96 states and 147 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:37,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:37,952 INFO L93 Difference]: Finished difference Result 298 states and 449 transitions. [2024-11-22 06:37:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:37:37,953 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-22 06:37:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:37,955 INFO L225 Difference]: With dead ends: 298 [2024-11-22 06:37:37,955 INFO L226 Difference]: Without dead ends: 205 [2024-11-22 06:37:37,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:37:37,957 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 243 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:37,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 487 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 06:37:37,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-22 06:37:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 117. [2024-11-22 06:37:37,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 88 states have (on average 1.4204545454545454) internal successors, (125), 88 states have internal predecessors, (125), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:37:37,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 179 transitions. [2024-11-22 06:37:37,968 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 179 transitions. Word has length 173 [2024-11-22 06:37:37,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:37,969 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 179 transitions. [2024-11-22 06:37:37,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:37,969 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 179 transitions. [2024-11-22 06:37:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-22 06:37:37,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:37,971 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:37,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 06:37:37,972 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:37,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:37,972 INFO L85 PathProgramCache]: Analyzing trace with hash -178687821, now seen corresponding path program 1 times [2024-11-22 06:37:37,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:37,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551974304] [2024-11-22 06:37:37,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:37,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:40,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:40,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551974304] [2024-11-22 06:37:40,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551974304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:40,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:40,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 06:37:40,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634620505] [2024-11-22 06:37:40,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:40,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 06:37:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:40,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 06:37:40,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:37:40,713 INFO L87 Difference]: Start difference. First operand 117 states and 179 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:43,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:43,243 INFO L93 Difference]: Finished difference Result 433 states and 656 transitions. [2024-11-22 06:37:43,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 06:37:43,243 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-22 06:37:43,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:43,246 INFO L225 Difference]: With dead ends: 433 [2024-11-22 06:37:43,246 INFO L226 Difference]: Without dead ends: 319 [2024-11-22 06:37:43,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-11-22 06:37:43,248 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 288 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:43,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 776 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 06:37:43,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-22 06:37:43,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 252. [2024-11-22 06:37:43,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 195 states have (on average 1.4256410256410257) internal successors, (278), 195 states have internal predecessors, (278), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-22 06:37:43,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 386 transitions. [2024-11-22 06:37:43,291 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 386 transitions. Word has length 173 [2024-11-22 06:37:43,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:43,296 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 386 transitions. [2024-11-22 06:37:43,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 386 transitions. [2024-11-22 06:37:43,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-22 06:37:43,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:43,298 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:43,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 06:37:43,299 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:43,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:43,304 INFO L85 PathProgramCache]: Analyzing trace with hash -988034447, now seen corresponding path program 1 times [2024-11-22 06:37:43,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:43,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504185192] [2024-11-22 06:37:43,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:43,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:44,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:44,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:44,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504185192] [2024-11-22 06:37:44,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504185192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:44,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:44,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 06:37:44,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072013064] [2024-11-22 06:37:44,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:44,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 06:37:44,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 06:37:44,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:37:44,627 INFO L87 Difference]: Start difference. First operand 252 states and 386 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:45,515 INFO L93 Difference]: Finished difference Result 614 states and 932 transitions. [2024-11-22 06:37:45,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 06:37:45,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-22 06:37:45,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:45,519 INFO L225 Difference]: With dead ends: 614 [2024-11-22 06:37:45,519 INFO L226 Difference]: Without dead ends: 365 [2024-11-22 06:37:45,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:37:45,522 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 169 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:45,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 641 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 06:37:45,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-22 06:37:45,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 142. [2024-11-22 06:37:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 113 states have (on average 1.424778761061947) internal successors, (161), 113 states have internal predecessors, (161), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:37:45,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 215 transitions. [2024-11-22 06:37:45,534 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 215 transitions. Word has length 173 [2024-11-22 06:37:45,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:45,534 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 215 transitions. [2024-11-22 06:37:45,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 215 transitions. [2024-11-22 06:37:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:37:45,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:45,540 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:45,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 06:37:45,541 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:45,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:45,541 INFO L85 PathProgramCache]: Analyzing trace with hash 921830182, now seen corresponding path program 1 times [2024-11-22 06:37:45,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:45,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763525069] [2024-11-22 06:37:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:45,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:47,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:47,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763525069] [2024-11-22 06:37:47,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763525069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:47,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:47,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 06:37:47,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134367807] [2024-11-22 06:37:47,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:47,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 06:37:47,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:47,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 06:37:47,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:37:47,553 INFO L87 Difference]: Start difference. First operand 142 states and 215 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:48,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:48,450 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2024-11-22 06:37:48,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 06:37:48,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:37:48,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:48,453 INFO L225 Difference]: With dead ends: 411 [2024-11-22 06:37:48,453 INFO L226 Difference]: Without dead ends: 272 [2024-11-22 06:37:48,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:37:48,454 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 262 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:48,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 687 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 06:37:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-22 06:37:48,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 158. [2024-11-22 06:37:48,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 129 states have (on average 1.441860465116279) internal successors, (186), 129 states have internal predecessors, (186), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:37:48,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 240 transitions. [2024-11-22 06:37:48,463 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 240 transitions. Word has length 174 [2024-11-22 06:37:48,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:48,463 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 240 transitions. [2024-11-22 06:37:48,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:48,464 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 240 transitions. [2024-11-22 06:37:48,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:37:48,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:48,465 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:48,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 06:37:48,466 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:48,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:48,466 INFO L85 PathProgramCache]: Analyzing trace with hash 112483556, now seen corresponding path program 1 times [2024-11-22 06:37:48,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:48,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029004664] [2024-11-22 06:37:48,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:48,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:50,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:50,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:50,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029004664] [2024-11-22 06:37:50,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029004664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:50,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:50,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 06:37:50,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238635465] [2024-11-22 06:37:50,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:50,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 06:37:50,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:50,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 06:37:50,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:37:50,209 INFO L87 Difference]: Start difference. First operand 158 states and 240 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:51,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:51,588 INFO L93 Difference]: Finished difference Result 469 states and 697 transitions. [2024-11-22 06:37:51,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 06:37:51,592 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:37:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:51,593 INFO L225 Difference]: With dead ends: 469 [2024-11-22 06:37:51,594 INFO L226 Difference]: Without dead ends: 314 [2024-11-22 06:37:51,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-22 06:37:51,595 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 392 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:51,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 604 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 06:37:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-22 06:37:51,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 144. [2024-11-22 06:37:51,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 115 states have (on average 1.4260869565217391) internal successors, (164), 115 states have internal predecessors, (164), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:37:51,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 218 transitions. [2024-11-22 06:37:51,610 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 218 transitions. Word has length 174 [2024-11-22 06:37:51,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:51,611 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 218 transitions. [2024-11-22 06:37:51,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:51,611 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 218 transitions. [2024-11-22 06:37:51,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:37:51,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:51,615 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:51,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 06:37:51,616 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:51,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:51,616 INFO L85 PathProgramCache]: Analyzing trace with hash -99238172, now seen corresponding path program 1 times [2024-11-22 06:37:51,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:51,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555358517] [2024-11-22 06:37:51,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:51,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:53,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:53,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555358517] [2024-11-22 06:37:53,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555358517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:53,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:53,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 06:37:53,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637905866] [2024-11-22 06:37:53,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:53,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 06:37:53,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:53,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 06:37:53,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:37:53,240 INFO L87 Difference]: Start difference. First operand 144 states and 218 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:53,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:53,890 INFO L93 Difference]: Finished difference Result 400 states and 598 transitions. [2024-11-22 06:37:53,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 06:37:53,891 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:37:53,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:53,895 INFO L225 Difference]: With dead ends: 400 [2024-11-22 06:37:53,896 INFO L226 Difference]: Without dead ends: 259 [2024-11-22 06:37:53,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:37:53,897 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 389 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:53,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 665 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 06:37:53,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-22 06:37:53,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 158. [2024-11-22 06:37:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 129 states have (on average 1.441860465116279) internal successors, (186), 129 states have internal predecessors, (186), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:37:53,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 240 transitions. [2024-11-22 06:37:53,910 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 240 transitions. Word has length 174 [2024-11-22 06:37:53,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:53,910 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 240 transitions. [2024-11-22 06:37:53,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:53,911 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 240 transitions. [2024-11-22 06:37:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:37:53,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:53,912 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:53,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 06:37:53,913 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:53,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:53,913 INFO L85 PathProgramCache]: Analyzing trace with hash -908584798, now seen corresponding path program 1 times [2024-11-22 06:37:53,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:53,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694917343] [2024-11-22 06:37:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:53,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:56,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:56,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:56,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694917343] [2024-11-22 06:37:56,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694917343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:56,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:56,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 06:37:56,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156043395] [2024-11-22 06:37:56,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:56,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 06:37:56,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:56,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 06:37:56,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:37:56,883 INFO L87 Difference]: Start difference. First operand 158 states and 240 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:58,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:58,597 INFO L93 Difference]: Finished difference Result 565 states and 843 transitions. [2024-11-22 06:37:58,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 06:37:58,599 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:37:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:58,601 INFO L225 Difference]: With dead ends: 565 [2024-11-22 06:37:58,601 INFO L226 Difference]: Without dead ends: 410 [2024-11-22 06:37:58,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-22 06:37:58,607 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 380 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:58,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 726 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 06:37:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-22 06:37:58,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 156. [2024-11-22 06:37:58,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 127 states have (on average 1.4488188976377954) internal successors, (184), 127 states have internal predecessors, (184), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:37:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 238 transitions. [2024-11-22 06:37:58,626 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 238 transitions. Word has length 174 [2024-11-22 06:37:58,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:58,626 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 238 transitions. [2024-11-22 06:37:58,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 238 transitions. [2024-11-22 06:37:58,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:37:58,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:58,628 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:58,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 06:37:58,628 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:58,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:58,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1072314524, now seen corresponding path program 1 times [2024-11-22 06:37:58,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:58,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491439602] [2024-11-22 06:37:58,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:58,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:58,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:58,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491439602] [2024-11-22 06:37:58,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491439602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:58,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:58,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:37:58,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748842525] [2024-11-22 06:37:58,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:58,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:37:58,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:58,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:37:58,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:37:58,850 INFO L87 Difference]: Start difference. First operand 156 states and 238 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:59,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:59,089 INFO L93 Difference]: Finished difference Result 360 states and 547 transitions. [2024-11-22 06:37:59,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:37:59,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:37:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:59,090 INFO L225 Difference]: With dead ends: 360 [2024-11-22 06:37:59,090 INFO L226 Difference]: Without dead ends: 207 [2024-11-22 06:37:59,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:37:59,091 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 71 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:59,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 629 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 06:37:59,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-22 06:37:59,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2024-11-22 06:37:59,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 170 states have (on average 1.4529411764705882) internal successors, (247), 171 states have internal predecessors, (247), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:37:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 309 transitions. [2024-11-22 06:37:59,108 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 309 transitions. Word has length 174 [2024-11-22 06:37:59,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:59,109 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 309 transitions. [2024-11-22 06:37:59,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:59,109 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 309 transitions. [2024-11-22 06:37:59,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:37:59,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:59,111 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:59,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 06:37:59,112 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:59,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:59,112 INFO L85 PathProgramCache]: Analyzing trace with hash -371249946, now seen corresponding path program 1 times [2024-11-22 06:37:59,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:59,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522844979] [2024-11-22 06:37:59,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:59,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:59,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:59,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522844979] [2024-11-22 06:37:59,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522844979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:59,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:59,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:37:59,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200913511] [2024-11-22 06:37:59,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:59,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:37:59,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:59,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:37:59,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:37:59,268 INFO L87 Difference]: Start difference. First operand 204 states and 309 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:59,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:37:59,410 INFO L93 Difference]: Finished difference Result 406 states and 615 transitions. [2024-11-22 06:37:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:37:59,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:37:59,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:37:59,412 INFO L225 Difference]: With dead ends: 406 [2024-11-22 06:37:59,412 INFO L226 Difference]: Without dead ends: 205 [2024-11-22 06:37:59,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:37:59,413 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 68 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:37:59,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 373 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 06:37:59,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-22 06:37:59,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 202. [2024-11-22 06:37:59,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 168 states have (on average 1.4523809523809523) internal successors, (244), 169 states have internal predecessors, (244), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:37:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 306 transitions. [2024-11-22 06:37:59,423 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 306 transitions. Word has length 174 [2024-11-22 06:37:59,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:37:59,424 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 306 transitions. [2024-11-22 06:37:59,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:37:59,424 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 306 transitions. [2024-11-22 06:37:59,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:37:59,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:37:59,426 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:37:59,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 06:37:59,426 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:37:59,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:37:59,426 INFO L85 PathProgramCache]: Analyzing trace with hash 103061529, now seen corresponding path program 1 times [2024-11-22 06:37:59,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:37:59,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182224522] [2024-11-22 06:37:59,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:37:59,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:37:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:37:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:37:59,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:37:59,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182224522] [2024-11-22 06:37:59,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182224522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:37:59,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:37:59,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:37:59,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055608147] [2024-11-22 06:37:59,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:37:59,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:37:59,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:37:59,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:37:59,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:37:59,888 INFO L87 Difference]: Start difference. First operand 202 states and 306 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:00,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:00,170 INFO L93 Difference]: Finished difference Result 604 states and 909 transitions. [2024-11-22 06:38:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:38:00,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:38:00,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:00,174 INFO L225 Difference]: With dead ends: 604 [2024-11-22 06:38:00,174 INFO L226 Difference]: Without dead ends: 405 [2024-11-22 06:38:00,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:38:00,175 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 199 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:00,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 654 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 06:38:00,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-22 06:38:00,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 230. [2024-11-22 06:38:00,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 196 states have (on average 1.4489795918367347) internal successors, (284), 197 states have internal predecessors, (284), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:38:00,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 346 transitions. [2024-11-22 06:38:00,185 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 346 transitions. Word has length 174 [2024-11-22 06:38:00,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:00,187 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 346 transitions. [2024-11-22 06:38:00,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:00,188 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 346 transitions. [2024-11-22 06:38:00,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:38:00,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:00,189 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:00,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 06:38:00,189 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:00,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:00,190 INFO L85 PathProgramCache]: Analyzing trace with hash -918006825, now seen corresponding path program 1 times [2024-11-22 06:38:00,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:00,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409895630] [2024-11-22 06:38:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:00,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:00,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409895630] [2024-11-22 06:38:00,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409895630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:00,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:00,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:38:00,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812362312] [2024-11-22 06:38:00,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:00,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:38:00,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:00,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:38:00,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:38:00,739 INFO L87 Difference]: Start difference. First operand 230 states and 346 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:01,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:01,052 INFO L93 Difference]: Finished difference Result 602 states and 900 transitions. [2024-11-22 06:38:01,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:38:01,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:38:01,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:01,055 INFO L225 Difference]: With dead ends: 602 [2024-11-22 06:38:01,055 INFO L226 Difference]: Without dead ends: 375 [2024-11-22 06:38:01,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:38:01,056 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 195 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:01,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 524 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 06:38:01,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-22 06:38:01,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 230. [2024-11-22 06:38:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 196 states have (on average 1.4489795918367347) internal successors, (284), 197 states have internal predecessors, (284), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:38:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 346 transitions. [2024-11-22 06:38:01,064 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 346 transitions. Word has length 174 [2024-11-22 06:38:01,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:01,064 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 346 transitions. [2024-11-22 06:38:01,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:01,065 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 346 transitions. [2024-11-22 06:38:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:38:01,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:01,066 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:01,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 06:38:01,066 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:01,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:01,066 INFO L85 PathProgramCache]: Analyzing trace with hash 920709979, now seen corresponding path program 1 times [2024-11-22 06:38:01,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:01,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968020269] [2024-11-22 06:38:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:01,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:02,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:02,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968020269] [2024-11-22 06:38:02,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968020269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:02,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:02,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 06:38:02,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904103398] [2024-11-22 06:38:02,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:02,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 06:38:02,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:02,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 06:38:02,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:38:02,237 INFO L87 Difference]: Start difference. First operand 230 states and 346 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:02,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:02,712 INFO L93 Difference]: Finished difference Result 672 states and 1002 transitions. [2024-11-22 06:38:02,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 06:38:02,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:38:02,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:02,715 INFO L225 Difference]: With dead ends: 672 [2024-11-22 06:38:02,715 INFO L226 Difference]: Without dead ends: 445 [2024-11-22 06:38:02,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:38:02,716 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 306 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:02,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 496 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 06:38:02,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-22 06:38:02,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 232. [2024-11-22 06:38:02,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 198 states have (on average 1.4494949494949494) internal successors, (287), 199 states have internal predecessors, (287), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:38:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 349 transitions. [2024-11-22 06:38:02,727 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 349 transitions. Word has length 174 [2024-11-22 06:38:02,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:02,729 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 349 transitions. [2024-11-22 06:38:02,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 349 transitions. [2024-11-22 06:38:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:38:02,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:02,730 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:02,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 06:38:02,730 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:02,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:02,731 INFO L85 PathProgramCache]: Analyzing trace with hash -100358375, now seen corresponding path program 1 times [2024-11-22 06:38:02,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:02,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606236828] [2024-11-22 06:38:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:02,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:05,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:05,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606236828] [2024-11-22 06:38:05,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606236828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:05,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:05,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 06:38:05,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341856899] [2024-11-22 06:38:05,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:05,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 06:38:05,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:05,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 06:38:05,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-22 06:38:05,738 INFO L87 Difference]: Start difference. First operand 232 states and 349 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:10,190 INFO L93 Difference]: Finished difference Result 919 states and 1354 transitions. [2024-11-22 06:38:10,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 06:38:10,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-22 06:38:10,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:10,194 INFO L225 Difference]: With dead ends: 919 [2024-11-22 06:38:10,194 INFO L226 Difference]: Without dead ends: 690 [2024-11-22 06:38:10,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2024-11-22 06:38:10,195 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 824 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:10,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 787 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-22 06:38:10,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-22 06:38:10,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 380. [2024-11-22 06:38:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 313 states have (on average 1.4313099041533546) internal successors, (448), 315 states have internal predecessors, (448), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 06:38:10,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 572 transitions. [2024-11-22 06:38:10,223 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 572 transitions. Word has length 174 [2024-11-22 06:38:10,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:10,223 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 572 transitions. [2024-11-22 06:38:10,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:10,223 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 572 transitions. [2024-11-22 06:38:10,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 06:38:10,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:10,225 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:10,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 06:38:10,225 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:10,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:10,225 INFO L85 PathProgramCache]: Analyzing trace with hash -909705001, now seen corresponding path program 1 times [2024-11-22 06:38:10,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:10,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873197752] [2024-11-22 06:38:10,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:10,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:14,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:14,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873197752] [2024-11-22 06:38:14,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873197752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:14,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:14,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 06:38:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81724719] [2024-11-22 06:38:14,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:14,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 06:38:14,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:14,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 06:38:14,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-22 06:38:14,271 INFO L87 Difference]: Start difference. First operand 380 states and 572 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-22 06:38:17,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:17,918 INFO L93 Difference]: Finished difference Result 889 states and 1331 transitions. [2024-11-22 06:38:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 06:38:17,918 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2024-11-22 06:38:17,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:17,921 INFO L225 Difference]: With dead ends: 889 [2024-11-22 06:38:17,921 INFO L226 Difference]: Without dead ends: 523 [2024-11-22 06:38:17,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2024-11-22 06:38:17,924 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 526 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:17,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 955 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1670 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-22 06:38:17,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-22 06:38:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 382. [2024-11-22 06:38:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 315 states have (on average 1.4253968253968254) internal successors, (449), 317 states have internal predecessors, (449), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 06:38:17,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 573 transitions. [2024-11-22 06:38:17,941 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 573 transitions. Word has length 174 [2024-11-22 06:38:17,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:17,941 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 573 transitions. [2024-11-22 06:38:17,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-22 06:38:17,941 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 573 transitions. [2024-11-22 06:38:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 06:38:17,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:17,942 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:17,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 06:38:17,943 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:17,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:17,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1960065966, now seen corresponding path program 1 times [2024-11-22 06:38:17,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:17,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735223995] [2024-11-22 06:38:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:17,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:18,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:18,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735223995] [2024-11-22 06:38:18,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735223995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:18,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:18,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:38:18,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655875605] [2024-11-22 06:38:18,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:18,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:38:18,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:18,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:38:18,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:38:18,061 INFO L87 Difference]: Start difference. First operand 382 states and 573 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:18,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:18,175 INFO L93 Difference]: Finished difference Result 920 states and 1385 transitions. [2024-11-22 06:38:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:38:18,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-22 06:38:18,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:18,179 INFO L225 Difference]: With dead ends: 920 [2024-11-22 06:38:18,180 INFO L226 Difference]: Without dead ends: 552 [2024-11-22 06:38:18,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:38:18,181 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 77 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:18,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 383 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 06:38:18,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-22 06:38:18,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 497. [2024-11-22 06:38:18,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 399 states have (on average 1.3934837092731829) internal successors, (556), 404 states have internal predecessors, (556), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 06:38:18,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 736 transitions. [2024-11-22 06:38:18,212 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 736 transitions. Word has length 175 [2024-11-22 06:38:18,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:18,212 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 736 transitions. [2024-11-22 06:38:18,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:18,213 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 736 transitions. [2024-11-22 06:38:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 06:38:18,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:18,214 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:18,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 06:38:18,215 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:18,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:18,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1251315180, now seen corresponding path program 1 times [2024-11-22 06:38:18,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:18,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111745581] [2024-11-22 06:38:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:18,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:18,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:18,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111745581] [2024-11-22 06:38:18,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111745581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:18,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:18,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:38:18,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430352677] [2024-11-22 06:38:18,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:18,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:38:18,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:38:18,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:38:18,335 INFO L87 Difference]: Start difference. First operand 497 states and 736 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:18,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:18,464 INFO L93 Difference]: Finished difference Result 820 states and 1211 transitions. [2024-11-22 06:38:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:38:18,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-22 06:38:18,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:18,468 INFO L225 Difference]: With dead ends: 820 [2024-11-22 06:38:18,468 INFO L226 Difference]: Without dead ends: 502 [2024-11-22 06:38:18,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:38:18,469 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 66 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:18,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 398 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 06:38:18,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-22 06:38:18,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 495. [2024-11-22 06:38:18,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 397 states have (on average 1.3904282115869018) internal successors, (552), 402 states have internal predecessors, (552), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 06:38:18,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 732 transitions. [2024-11-22 06:38:18,497 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 732 transitions. Word has length 175 [2024-11-22 06:38:18,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:18,497 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 732 transitions. [2024-11-22 06:38:18,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:18,497 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 732 transitions. [2024-11-22 06:38:18,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 06:38:18,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:18,499 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:18,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 06:38:18,500 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:18,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:18,500 INFO L85 PathProgramCache]: Analyzing trace with hash -686128964, now seen corresponding path program 1 times [2024-11-22 06:38:18,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:18,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794954320] [2024-11-22 06:38:18,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:18,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:21,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:21,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:21,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794954320] [2024-11-22 06:38:21,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794954320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:21,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:21,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 06:38:21,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025355238] [2024-11-22 06:38:21,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:21,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 06:38:21,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:21,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 06:38:21,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:38:21,239 INFO L87 Difference]: Start difference. First operand 495 states and 732 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:24,088 INFO L93 Difference]: Finished difference Result 1269 states and 1837 transitions. [2024-11-22 06:38:24,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 06:38:24,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-22 06:38:24,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:24,094 INFO L225 Difference]: With dead ends: 1269 [2024-11-22 06:38:24,094 INFO L226 Difference]: Without dead ends: 953 [2024-11-22 06:38:24,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2024-11-22 06:38:24,096 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 479 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:24,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 918 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-22 06:38:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-11-22 06:38:24,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 504. [2024-11-22 06:38:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 406 states have (on average 1.3891625615763548) internal successors, (564), 411 states have internal predecessors, (564), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 06:38:24,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 744 transitions. [2024-11-22 06:38:24,120 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 744 transitions. Word has length 175 [2024-11-22 06:38:24,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:24,121 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 744 transitions. [2024-11-22 06:38:24,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:24,121 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 744 transitions. [2024-11-22 06:38:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 06:38:24,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:24,122 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:24,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 06:38:24,123 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:24,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:24,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1495475590, now seen corresponding path program 1 times [2024-11-22 06:38:24,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:24,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736719497] [2024-11-22 06:38:24,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:24,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:25,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:25,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736719497] [2024-11-22 06:38:25,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736719497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:25,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:25,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 06:38:25,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745846574] [2024-11-22 06:38:25,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:25,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 06:38:25,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 06:38:25,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:38:25,653 INFO L87 Difference]: Start difference. First operand 504 states and 744 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:26,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:26,605 INFO L93 Difference]: Finished difference Result 1184 states and 1728 transitions. [2024-11-22 06:38:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 06:38:26,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-22 06:38:26,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:26,609 INFO L225 Difference]: With dead ends: 1184 [2024-11-22 06:38:26,610 INFO L226 Difference]: Without dead ends: 859 [2024-11-22 06:38:26,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:38:26,611 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 328 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:26,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 656 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 06:38:26,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-22 06:38:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 476. [2024-11-22 06:38:26,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 378 states have (on average 1.3783068783068784) internal successors, (521), 383 states have internal predecessors, (521), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 06:38:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 701 transitions. [2024-11-22 06:38:26,632 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 701 transitions. Word has length 175 [2024-11-22 06:38:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:26,632 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 701 transitions. [2024-11-22 06:38:26,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 701 transitions. [2024-11-22 06:38:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 06:38:26,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:26,633 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:26,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 06:38:26,634 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:26,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:26,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1707197318, now seen corresponding path program 1 times [2024-11-22 06:38:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:26,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686538115] [2024-11-22 06:38:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:26,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:29,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:29,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686538115] [2024-11-22 06:38:29,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686538115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:29,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:29,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 06:38:29,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405796000] [2024-11-22 06:38:29,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:29,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 06:38:29,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:29,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 06:38:29,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:38:29,263 INFO L87 Difference]: Start difference. First operand 476 states and 701 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:30,826 INFO L93 Difference]: Finished difference Result 1093 states and 1592 transitions. [2024-11-22 06:38:30,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 06:38:30,830 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-22 06:38:30,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:30,833 INFO L225 Difference]: With dead ends: 1093 [2024-11-22 06:38:30,834 INFO L226 Difference]: Without dead ends: 796 [2024-11-22 06:38:30,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2024-11-22 06:38:30,835 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 252 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:30,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 789 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 06:38:30,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-11-22 06:38:30,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 492. [2024-11-22 06:38:30,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 394 states have (on average 1.380710659898477) internal successors, (544), 399 states have internal predecessors, (544), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 06:38:30,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 724 transitions. [2024-11-22 06:38:30,858 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 724 transitions. Word has length 175 [2024-11-22 06:38:30,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:30,858 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 724 transitions. [2024-11-22 06:38:30,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:30,859 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 724 transitions. [2024-11-22 06:38:30,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 06:38:30,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:30,860 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:30,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 06:38:30,860 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:30,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:30,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1778423352, now seen corresponding path program 1 times [2024-11-22 06:38:30,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:30,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227699727] [2024-11-22 06:38:30,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:30,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:33,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:33,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:33,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227699727] [2024-11-22 06:38:33,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227699727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:33,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:33,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 06:38:33,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575076572] [2024-11-22 06:38:33,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:33,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 06:38:33,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:33,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 06:38:33,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:38:33,964 INFO L87 Difference]: Start difference. First operand 492 states and 724 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:34,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:34,904 INFO L93 Difference]: Finished difference Result 1066 states and 1558 transitions. [2024-11-22 06:38:34,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 06:38:34,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-22 06:38:34,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:34,908 INFO L225 Difference]: With dead ends: 1066 [2024-11-22 06:38:34,910 INFO L226 Difference]: Without dead ends: 753 [2024-11-22 06:38:34,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:38:34,911 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 295 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:34,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 678 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:38:34,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-22 06:38:34,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 476. [2024-11-22 06:38:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 378 states have (on average 1.3783068783068784) internal successors, (521), 383 states have internal predecessors, (521), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 06:38:34,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 701 transitions. [2024-11-22 06:38:34,934 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 701 transitions. Word has length 175 [2024-11-22 06:38:34,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:34,935 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 701 transitions. [2024-11-22 06:38:34,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:34,935 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 701 transitions. [2024-11-22 06:38:34,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-22 06:38:34,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:34,936 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:34,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 06:38:34,936 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:34,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:34,938 INFO L85 PathProgramCache]: Analyzing trace with hash 848897420, now seen corresponding path program 1 times [2024-11-22 06:38:34,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:34,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960709653] [2024-11-22 06:38:34,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:34,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:41,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:41,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960709653] [2024-11-22 06:38:41,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960709653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:41,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:41,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 06:38:41,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679821284] [2024-11-22 06:38:41,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:41,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 06:38:41,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:41,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 06:38:41,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:38:41,414 INFO L87 Difference]: Start difference. First operand 476 states and 701 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:43,107 INFO L93 Difference]: Finished difference Result 681 states and 993 transitions. [2024-11-22 06:38:43,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 06:38:43,111 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-22 06:38:43,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:43,114 INFO L225 Difference]: With dead ends: 681 [2024-11-22 06:38:43,114 INFO L226 Difference]: Without dead ends: 679 [2024-11-22 06:38:43,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-11-22 06:38:43,116 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 282 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:43,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1093 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 06:38:43,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-22 06:38:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 601. [2024-11-22 06:38:43,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 474 states have (on average 1.3670886075949367) internal successors, (648), 481 states have internal predecessors, (648), 117 states have call successors, (117), 9 states have call predecessors, (117), 9 states have return successors, (117), 110 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-22 06:38:43,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 882 transitions. [2024-11-22 06:38:43,151 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 882 transitions. Word has length 176 [2024-11-22 06:38:43,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:43,151 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 882 transitions. [2024-11-22 06:38:43,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:43,151 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 882 transitions. [2024-11-22 06:38:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-22 06:38:43,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:43,152 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:43,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 06:38:43,153 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:43,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:43,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1549961998, now seen corresponding path program 1 times [2024-11-22 06:38:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:43,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988136865] [2024-11-22 06:38:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:43,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:48,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:48,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988136865] [2024-11-22 06:38:48,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988136865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:48,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:48,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 06:38:48,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602660863] [2024-11-22 06:38:48,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:48,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 06:38:48,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:48,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 06:38:48,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:38:48,903 INFO L87 Difference]: Start difference. First operand 601 states and 882 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:50,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:38:50,595 INFO L93 Difference]: Finished difference Result 698 states and 1008 transitions. [2024-11-22 06:38:50,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 06:38:50,595 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-22 06:38:50,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:38:50,599 INFO L225 Difference]: With dead ends: 698 [2024-11-22 06:38:50,599 INFO L226 Difference]: Without dead ends: 696 [2024-11-22 06:38:50,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-22 06:38:50,600 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 274 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:38:50,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 960 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 06:38:50,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-22 06:38:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 688. [2024-11-22 06:38:50,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 529 states have (on average 1.3383742911153118) internal successors, (708), 538 states have internal predecessors, (708), 144 states have call successors, (144), 14 states have call predecessors, (144), 14 states have return successors, (144), 135 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-22 06:38:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 996 transitions. [2024-11-22 06:38:50,700 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 996 transitions. Word has length 176 [2024-11-22 06:38:50,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:38:50,701 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 996 transitions. [2024-11-22 06:38:50,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:38:50,702 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 996 transitions. [2024-11-22 06:38:50,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-22 06:38:50,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:38:50,703 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:38:50,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 06:38:50,704 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:38:50,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:38:50,704 INFO L85 PathProgramCache]: Analyzing trace with hash -162219830, now seen corresponding path program 1 times [2024-11-22 06:38:50,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:38:50,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511832735] [2024-11-22 06:38:50,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:38:50,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:38:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:38:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:38:55,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:38:55,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511832735] [2024-11-22 06:38:55,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511832735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:38:55,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:38:55,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 06:38:55,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927260719] [2024-11-22 06:38:55,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:38:55,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 06:38:55,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:38:55,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 06:38:55,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-22 06:38:55,668 INFO L87 Difference]: Start difference. First operand 688 states and 996 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)