./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-43.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-43.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 ecbcd709fd39c3e33cec5f2b119267d660716122d9f0521d15b09d678f2b82b7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:52:16,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:52:16,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:52:16,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:52:16,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:52:16,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:52:16,239 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:52:16,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:52:16,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:52:16,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:52:16,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:52:16,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:52:16,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:52:16,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:52:16,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:52:16,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:52:16,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:52:16,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:52:16,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:52:16,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:52:16,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:52:16,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:52:16,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:52:16,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:52:16,243 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:52:16,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:52:16,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:52:16,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:52:16,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:52:16,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:52:16,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:52:16,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:52:16,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:52:16,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:52:16,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:52:16,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:52:16,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:52:16,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:52:16,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:52:16,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:52:16,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:52:16,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:52:16,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecbcd709fd39c3e33cec5f2b119267d660716122d9f0521d15b09d678f2b82b7 [2024-11-18 19:52:16,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:52:16,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:52:16,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:52:16,508 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:52:16,508 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:52:16,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-43.i [2024-11-18 19:52:18,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:52:18,283 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:52:18,284 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-43.i [2024-11-18 19:52:18,298 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42fd04584/0c13cf82219f40c4b3fab322f3c593f8/FLAGe61d237ef [2024-11-18 19:52:18,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42fd04584/0c13cf82219f40c4b3fab322f3c593f8 [2024-11-18 19:52:18,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:52:18,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:52:18,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:52:18,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:52:18,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:52:18,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:18,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168ae791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18, skipping insertion in model container [2024-11-18 19:52:18,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:18,372 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:52:18,528 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-43.i[916,929] [2024-11-18 19:52:18,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:52:18,792 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:52:18,802 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-43.i[916,929] [2024-11-18 19:52:18,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:52:18,908 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:52:18,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18 WrapperNode [2024-11-18 19:52:18,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:52:18,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:52:18,910 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:52:18,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:52:18,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:18,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,009 INFO L138 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 866 [2024-11-18 19:52:19,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:52:19,011 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:52:19,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:52:19,011 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:52:19,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,069 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]. [2024-11-18 19:52:19,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:52:19,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:52:19,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:52:19,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:52:19,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (1/1) ... [2024-11-18 19:52:19,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:52:19,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:52:19,168 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) [2024-11-18 19:52:19,171 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 [2024-11-18 19:52:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:52:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:52:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:52:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:52:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:52:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:52:19,352 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:52:19,354 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:52:20,274 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-18 19:52:20,274 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:52:20,298 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:52:20,301 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:52:20,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:20 BoogieIcfgContainer [2024-11-18 19:52:20,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:52:20,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:52:20,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:52:20,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:52:20,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:52:18" (1/3) ... [2024-11-18 19:52:20,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3754459b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:52:20, skipping insertion in model container [2024-11-18 19:52:20,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:18" (2/3) ... [2024-11-18 19:52:20,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3754459b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:52:20, skipping insertion in model container [2024-11-18 19:52:20,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:20" (3/3) ... [2024-11-18 19:52:20,309 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-43.i [2024-11-18 19:52:20,322 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:52:20,322 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:52:20,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:52:20,387 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;@edaa935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:52:20,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:52:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 355 states, 250 states have (on average 1.6) internal successors, (400), 251 states have internal predecessors, (400), 102 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-18 19:52:20,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-11-18 19:52:20,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:20,459 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:20,460 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:20,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:20,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1348696429, now seen corresponding path program 1 times [2024-11-18 19:52:20,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:20,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337796083] [2024-11-18 19:52:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:20,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:21,349 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:52:21,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:21,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337796083] [2024-11-18 19:52:21,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337796083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:21,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:21,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:21,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172796795] [2024-11-18 19:52:21,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:21,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:21,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:21,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:21,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:21,384 INFO L87 Difference]: Start difference. First operand has 355 states, 250 states have (on average 1.6) internal successors, (400), 251 states have internal predecessors, (400), 102 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:21,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:21,524 INFO L93 Difference]: Finished difference Result 954 states and 1788 transitions. [2024-11-18 19:52:21,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:21,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) Word has length 662 [2024-11-18 19:52:21,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:21,555 INFO L225 Difference]: With dead ends: 954 [2024-11-18 19:52:21,556 INFO L226 Difference]: Without dead ends: 602 [2024-11-18 19:52:21,565 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 [2024-11-18 19:52:21,572 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 423 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:21,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1161 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:21,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-18 19:52:21,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 599. [2024-11-18 19:52:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 445 states have (on average 1.6179775280898876) internal successors, (720), 446 states have internal predecessors, (720), 151 states have call successors, (151), 2 states have call predecessors, (151), 2 states have return successors, (151), 150 states have call predecessors, (151), 151 states have call successors, (151) [2024-11-18 19:52:21,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1022 transitions. [2024-11-18 19:52:21,742 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1022 transitions. Word has length 662 [2024-11-18 19:52:21,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:21,743 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 1022 transitions. [2024-11-18 19:52:21,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1022 transitions. [2024-11-18 19:52:21,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-11-18 19:52:21,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:21,757 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:21,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 19:52:21,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:21,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1375762031, now seen corresponding path program 1 times [2024-11-18 19:52:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:21,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887076183] [2024-11-18 19:52:21,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:21,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:22,174 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:52:22,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:22,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887076183] [2024-11-18 19:52:22,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887076183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:22,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:22,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:22,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064871189] [2024-11-18 19:52:22,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:22,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:22,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:22,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:22,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:22,183 INFO L87 Difference]: Start difference. First operand 599 states and 1022 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:22,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:22,259 INFO L93 Difference]: Finished difference Result 1632 states and 2780 transitions. [2024-11-18 19:52:22,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:22,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) Word has length 662 [2024-11-18 19:52:22,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:22,271 INFO L225 Difference]: With dead ends: 1632 [2024-11-18 19:52:22,271 INFO L226 Difference]: Without dead ends: 1036 [2024-11-18 19:52:22,273 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 [2024-11-18 19:52:22,275 INFO L432 NwaCegarLoop]: 868 mSDtfsCounter, 393 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:22,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:22,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-11-18 19:52:22,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1033. [2024-11-18 19:52:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 775 states have (on average 1.6103225806451613) internal successors, (1248), 778 states have internal predecessors, (1248), 253 states have call successors, (253), 4 states have call predecessors, (253), 4 states have return successors, (253), 250 states have call predecessors, (253), 253 states have call successors, (253) [2024-11-18 19:52:22,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1754 transitions. [2024-11-18 19:52:22,396 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1754 transitions. Word has length 662 [2024-11-18 19:52:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:22,397 INFO L471 AbstractCegarLoop]: Abstraction has 1033 states and 1754 transitions. [2024-11-18 19:52:22,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1754 transitions. [2024-11-18 19:52:22,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-11-18 19:52:22,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:22,416 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:22,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:52:22,417 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:22,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:22,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1754559987, now seen corresponding path program 1 times [2024-11-18 19:52:22,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:22,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058281180] [2024-11-18 19:52:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:22,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:22,947 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:52:22,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:22,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058281180] [2024-11-18 19:52:22,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058281180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:22,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:22,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:52:22,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350462591] [2024-11-18 19:52:22,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:22,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:52:22,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:22,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:52:22,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:52:22,954 INFO L87 Difference]: Start difference. First operand 1033 states and 1754 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:23,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:23,283 INFO L93 Difference]: Finished difference Result 2106 states and 3570 transitions. [2024-11-18 19:52:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:52:23,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) Word has length 662 [2024-11-18 19:52:23,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:23,294 INFO L225 Difference]: With dead ends: 2106 [2024-11-18 19:52:23,295 INFO L226 Difference]: Without dead ends: 1076 [2024-11-18 19:52:23,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:52:23,300 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 1230 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:23,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 1913 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:52:23,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-11-18 19:52:23,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 833. [2024-11-18 19:52:23,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 678 states have (on average 1.663716814159292) internal successors, (1128), 679 states have internal predecessors, (1128), 151 states have call successors, (151), 3 states have call predecessors, (151), 3 states have return successors, (151), 150 states have call predecessors, (151), 151 states have call successors, (151) [2024-11-18 19:52:23,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1430 transitions. [2024-11-18 19:52:23,342 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1430 transitions. Word has length 662 [2024-11-18 19:52:23,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:23,342 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1430 transitions. [2024-11-18 19:52:23,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:23,343 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1430 transitions. [2024-11-18 19:52:23,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-11-18 19:52:23,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:23,347 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:23,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:52:23,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:23,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:23,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1509014323, now seen corresponding path program 1 times [2024-11-18 19:52:23,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:23,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996298366] [2024-11-18 19:52:23,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:23,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:23,638 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:52:23,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:23,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996298366] [2024-11-18 19:52:23,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996298366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:23,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:23,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:23,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96181390] [2024-11-18 19:52:23,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:23,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:23,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:23,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:23,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:23,643 INFO L87 Difference]: Start difference. First operand 833 states and 1430 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:23,762 INFO L93 Difference]: Finished difference Result 2309 states and 3956 transitions. [2024-11-18 19:52:23,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:23,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) Word has length 662 [2024-11-18 19:52:23,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:23,779 INFO L225 Difference]: With dead ends: 2309 [2024-11-18 19:52:23,779 INFO L226 Difference]: Without dead ends: 1479 [2024-11-18 19:52:23,785 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 [2024-11-18 19:52:23,786 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 382 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:23,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1175 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:23,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2024-11-18 19:52:23,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1476. [2024-11-18 19:52:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1197 states have (on average 1.6466165413533835) internal successors, (1971), 1200 states have internal predecessors, (1971), 272 states have call successors, (272), 6 states have call predecessors, (272), 6 states have return successors, (272), 269 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-18 19:52:23,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 2515 transitions. [2024-11-18 19:52:23,919 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 2515 transitions. Word has length 662 [2024-11-18 19:52:23,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:23,920 INFO L471 AbstractCegarLoop]: Abstraction has 1476 states and 2515 transitions. [2024-11-18 19:52:23,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:23,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 2515 transitions. [2024-11-18 19:52:23,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-11-18 19:52:23,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:23,933 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:23,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:52:23,934 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:23,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:23,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1320579189, now seen corresponding path program 1 times [2024-11-18 19:52:23,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:23,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700109657] [2024-11-18 19:52:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:23,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:24,432 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:52:24,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:24,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700109657] [2024-11-18 19:52:24,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700109657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:24,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:24,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:24,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740295412] [2024-11-18 19:52:24,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:24,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:24,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:24,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:24,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:24,438 INFO L87 Difference]: Start difference. First operand 1476 states and 2515 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:24,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:24,555 INFO L93 Difference]: Finished difference Result 2949 states and 5027 transitions. [2024-11-18 19:52:24,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:24,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) Word has length 662 [2024-11-18 19:52:24,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:24,565 INFO L225 Difference]: With dead ends: 2949 [2024-11-18 19:52:24,565 INFO L226 Difference]: Without dead ends: 1476 [2024-11-18 19:52:24,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:24,571 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 594 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:24,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 571 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:24,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-11-18 19:52:24,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1476. [2024-11-18 19:52:24,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1197 states have (on average 1.64578111946533) internal successors, (1970), 1200 states have internal predecessors, (1970), 272 states have call successors, (272), 6 states have call predecessors, (272), 6 states have return successors, (272), 269 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-18 19:52:24,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 2514 transitions. [2024-11-18 19:52:24,669 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 2514 transitions. Word has length 662 [2024-11-18 19:52:24,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:24,670 INFO L471 AbstractCegarLoop]: Abstraction has 1476 states and 2514 transitions. [2024-11-18 19:52:24,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:24,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 2514 transitions. [2024-11-18 19:52:24,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-11-18 19:52:24,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:24,676 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:24,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:52:24,677 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:24,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:24,677 INFO L85 PathProgramCache]: Analyzing trace with hash -833612077, now seen corresponding path program 1 times [2024-11-18 19:52:24,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:24,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014227614] [2024-11-18 19:52:24,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:24,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:52:25,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:25,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014227614] [2024-11-18 19:52:25,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014227614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:25,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:25,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:52:25,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326906719] [2024-11-18 19:52:25,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:25,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:52:25,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:25,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:52:25,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:52:25,095 INFO L87 Difference]: Start difference. First operand 1476 states and 2514 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:25,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:25,564 INFO L93 Difference]: Finished difference Result 4171 states and 7132 transitions. [2024-11-18 19:52:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:52:25,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) Word has length 663 [2024-11-18 19:52:25,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:25,580 INFO L225 Difference]: With dead ends: 4171 [2024-11-18 19:52:25,580 INFO L226 Difference]: Without dead ends: 2698 [2024-11-18 19:52:25,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:52:25,586 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 1006 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:25,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 1285 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:52:25,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2024-11-18 19:52:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2692. [2024-11-18 19:52:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2289 states have (on average 1.673219746614242) internal successors, (3830), 2296 states have internal predecessors, (3830), 392 states have call successors, (392), 10 states have call predecessors, (392), 10 states have return successors, (392), 385 states have call predecessors, (392), 392 states have call successors, (392) [2024-11-18 19:52:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 4614 transitions. [2024-11-18 19:52:25,729 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 4614 transitions. Word has length 663 [2024-11-18 19:52:25,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:25,730 INFO L471 AbstractCegarLoop]: Abstraction has 2692 states and 4614 transitions. [2024-11-18 19:52:25,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:25,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 4614 transitions. [2024-11-18 19:52:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-11-18 19:52:25,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:25,736 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:25,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:52:25,737 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:25,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:25,737 INFO L85 PathProgramCache]: Analyzing trace with hash 766684816, now seen corresponding path program 1 times [2024-11-18 19:52:25,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:25,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993325399] [2024-11-18 19:52:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:25,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:26,164 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:52:26,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:26,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993325399] [2024-11-18 19:52:26,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993325399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:26,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:26,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:26,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18317514] [2024-11-18 19:52:26,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:26,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:26,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:26,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:26,167 INFO L87 Difference]: Start difference. First operand 2692 states and 4614 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:26,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:26,346 INFO L93 Difference]: Finished difference Result 8070 states and 13836 transitions. [2024-11-18 19:52:26,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:26,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) Word has length 664 [2024-11-18 19:52:26,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:26,366 INFO L225 Difference]: With dead ends: 8070 [2024-11-18 19:52:26,366 INFO L226 Difference]: Without dead ends: 5381 [2024-11-18 19:52:26,372 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 [2024-11-18 19:52:26,372 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 591 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:26,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 1726 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:26,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2024-11-18 19:52:26,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 4621. [2024-11-18 19:52:26,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4621 states, 3816 states have (on average 1.6556603773584906) internal successors, (6318), 3830 states have internal predecessors, (6318), 784 states have call successors, (784), 20 states have call predecessors, (784), 20 states have return successors, (784), 770 states have call predecessors, (784), 784 states have call successors, (784) [2024-11-18 19:52:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4621 states to 4621 states and 7886 transitions. [2024-11-18 19:52:26,607 INFO L78 Accepts]: Start accepts. Automaton has 4621 states and 7886 transitions. Word has length 664 [2024-11-18 19:52:26,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:26,608 INFO L471 AbstractCegarLoop]: Abstraction has 4621 states and 7886 transitions. [2024-11-18 19:52:26,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:26,608 INFO L276 IsEmpty]: Start isEmpty. Operand 4621 states and 7886 transitions. [2024-11-18 19:52:26,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-11-18 19:52:26,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:26,614 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:26,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:52:26,614 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:26,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:26,615 INFO L85 PathProgramCache]: Analyzing trace with hash 985539534, now seen corresponding path program 1 times [2024-11-18 19:52:26,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:26,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487624171] [2024-11-18 19:52:26,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:26,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:27,251 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:52:27,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:27,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487624171] [2024-11-18 19:52:27,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487624171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:27,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:27,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:52:27,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784628559] [2024-11-18 19:52:27,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:27,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:52:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:27,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:52:27,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:52:27,258 INFO L87 Difference]: Start difference. First operand 4621 states and 7886 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:27,963 INFO L93 Difference]: Finished difference Result 14035 states and 23893 transitions. [2024-11-18 19:52:27,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:52:27,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) Word has length 664 [2024-11-18 19:52:27,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:28,003 INFO L225 Difference]: With dead ends: 14035 [2024-11-18 19:52:28,004 INFO L226 Difference]: Without dead ends: 9417 [2024-11-18 19:52:28,018 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 [2024-11-18 19:52:28,018 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 644 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:28,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1764 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:52:28,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9417 states. [2024-11-18 19:52:28,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9417 to 9285. [2024-11-18 19:52:28,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9285 states, 7676 states have (on average 1.6498176133402813) internal successors, (12664), 7704 states have internal predecessors, (12664), 1568 states have call successors, (1568), 40 states have call predecessors, (1568), 40 states have return successors, (1568), 1540 states have call predecessors, (1568), 1568 states have call successors, (1568) [2024-11-18 19:52:28,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9285 states to 9285 states and 15800 transitions. [2024-11-18 19:52:28,542 INFO L78 Accepts]: Start accepts. Automaton has 9285 states and 15800 transitions. Word has length 664 [2024-11-18 19:52:28,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:28,543 INFO L471 AbstractCegarLoop]: Abstraction has 9285 states and 15800 transitions. [2024-11-18 19:52:28,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:52:28,547 INFO L276 IsEmpty]: Start isEmpty. Operand 9285 states and 15800 transitions. [2024-11-18 19:52:28,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-11-18 19:52:28,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:28,557 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:28,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:52:28,557 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:28,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:28,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1572345548, now seen corresponding path program 1 times [2024-11-18 19:52:28,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:28,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250756070] [2024-11-18 19:52:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:28,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:52:38,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:38,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250756070] [2024-11-18 19:52:38,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250756070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:38,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:38,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:52:38,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532503562] [2024-11-18 19:52:38,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:38,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:52:38,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:38,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:52:38,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:52:38,054 INFO L87 Difference]: Start difference. First operand 9285 states and 15800 transitions. Second operand has 16 states, 16 states have (on average 9.8125) internal successors, (157), 16 states have internal predecessors, (157), 4 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 4 states have call predecessors, (102), 4 states have call successors, (102) [2024-11-18 19:52:56,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:56,396 INFO L93 Difference]: Finished difference Result 95703 states and 161885 transitions. [2024-11-18 19:52:56,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 19:52:56,397 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.8125) internal successors, (157), 16 states have internal predecessors, (157), 4 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 4 states have call predecessors, (102), 4 states have call successors, (102) Word has length 664 [2024-11-18 19:52:56,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:56,703 INFO L225 Difference]: With dead ends: 95703 [2024-11-18 19:52:56,704 INFO L226 Difference]: Without dead ends: 86421 [2024-11-18 19:52:56,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-11-18 19:52:56,769 INFO L432 NwaCegarLoop]: 875 mSDtfsCounter, 9876 mSDsluCounter, 5763 mSDsCounter, 0 mSdLazyCounter, 3918 mSolverCounterSat, 2337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9876 SdHoareTripleChecker+Valid, 6638 SdHoareTripleChecker+Invalid, 6255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2337 IncrementalHoareTripleChecker+Valid, 3918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:56,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9876 Valid, 6638 Invalid, 6255 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2337 Valid, 3918 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2024-11-18 19:52:56,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86421 states. [2024-11-18 19:53:01,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86421 to 50613. [2024-11-18 19:53:02,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50613 states, 42660 states have (on average 1.6523675574308485) internal successors, (70490), 42844 states have internal predecessors, (70490), 7744 states have call successors, (7744), 208 states have call predecessors, (7744), 208 states have return successors, (7744), 7560 states have call predecessors, (7744), 7744 states have call successors, (7744) [2024-11-18 19:53:02,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50613 states to 50613 states and 85978 transitions. [2024-11-18 19:53:02,253 INFO L78 Accepts]: Start accepts. Automaton has 50613 states and 85978 transitions. Word has length 664 [2024-11-18 19:53:02,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:53:02,254 INFO L471 AbstractCegarLoop]: Abstraction has 50613 states and 85978 transitions. [2024-11-18 19:53:02,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.8125) internal successors, (157), 16 states have internal predecessors, (157), 4 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 4 states have call predecessors, (102), 4 states have call successors, (102) [2024-11-18 19:53:02,254 INFO L276 IsEmpty]: Start isEmpty. Operand 50613 states and 85978 transitions. [2024-11-18 19:53:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-11-18 19:53:02,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:53:02,430 INFO L215 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:53:02,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:53:02,430 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:53:02,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:53:02,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1613020298, now seen corresponding path program 1 times [2024-11-18 19:53:02,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:53:02,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775456159] [2024-11-18 19:53:02,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:53:02,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:53:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:53:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2024-11-18 19:53:04,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:53:04,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775456159] [2024-11-18 19:53:04,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775456159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:53:04,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:53:04,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:53:04,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489808266] [2024-11-18 19:53:04,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:53:04,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:53:04,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:53:04,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:53:04,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:53:04,033 INFO L87 Difference]: Start difference. First operand 50613 states and 85978 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) [2024-11-18 19:53:19,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:53:19,398 INFO L93 Difference]: Finished difference Result 253053 states and 429878 transitions. [2024-11-18 19:53:19,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:53:19,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (102), 1 states have call predecessors, (102), 1 states have return successors, (102), 1 states have call predecessors, (102), 1 states have call successors, (102) Word has length 664 [2024-11-18 19:53:19,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:53:19,989 INFO L225 Difference]: With dead ends: 253053 [2024-11-18 19:53:19,989 INFO L226 Difference]: Without dead ends: 202443 [2024-11-18 19:53:20,154 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 [2024-11-18 19:53:20,155 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 1604 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:53:20,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 2784 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:53:20,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202443 states.