./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-18.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-250_file-18.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 44903c27af28474fa8f64f9be68c4119ba3454622360f31f5c3d951f7d2ecb67 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:29:29,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:29:29,076 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:29:29,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:29:29,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:29:29,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:29:29,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:29:29,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:29:29,113 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:29:29,113 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:29:29,114 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:29:29,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:29:29,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:29:29,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:29:29,117 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:29:29,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:29:29,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:29:29,118 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:29:29,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:29:29,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:29:29,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:29:29,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:29:29,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:29:29,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:29:29,124 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:29:29,124 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:29:29,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:29:29,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:29:29,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:29:29,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:29:29,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:29:29,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:29:29,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:29:29,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:29:29,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:29:29,127 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:29:29,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:29:29,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:29:29,131 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:29:29,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:29:29,131 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:29:29,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:29:29,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44903c27af28474fa8f64f9be68c4119ba3454622360f31f5c3d951f7d2ecb67 [2024-11-18 19:29:29,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:29:29,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:29:29,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:29:29,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:29:29,475 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:29:29,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-18.i [2024-11-18 19:29:31,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:29:31,316 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:29:31,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-18.i [2024-11-18 19:29:31,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a75f2e9/6ec65f764e5d4f24ab10251939553f5a/FLAG9e7191f36 [2024-11-18 19:29:31,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a75f2e9/6ec65f764e5d4f24ab10251939553f5a [2024-11-18 19:29:31,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:29:31,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:29:31,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:29:31,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:29:31,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:29:31,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:31,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65213b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31, skipping insertion in model container [2024-11-18 19:29:31,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:31,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:29:31,625 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-250_file-18.i[916,929] [2024-11-18 19:29:31,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:29:31,837 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:29:31,847 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-250_file-18.i[916,929] [2024-11-18 19:29:31,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:29:31,950 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:29:31,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31 WrapperNode [2024-11-18 19:29:31,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:29:31,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:29:31,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:29:31,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:29:31,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:31,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,043 INFO L138 Inliner]: procedures = 26, calls = 95, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 578 [2024-11-18 19:29:32,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:29:32,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:29:32,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:29:32,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:29:32,062 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,070 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,121 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 19:29:32,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,122 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:29:32,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:29:32,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:29:32,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:29:32,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (1/1) ... [2024-11-18 19:29:32,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:29:32,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:29:32,228 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 19:29:32,233 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 19:29:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:29:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:29:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:29:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:29:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:29:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:29:32,431 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:29:32,434 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:29:33,295 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-18 19:29:33,296 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:29:33,324 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:29:33,324 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:29:33,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:29:33 BoogieIcfgContainer [2024-11-18 19:29:33,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:29:33,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:29:33,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:29:33,330 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:29:33,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:29:31" (1/3) ... [2024-11-18 19:29:33,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8cbb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:29:33, skipping insertion in model container [2024-11-18 19:29:33,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:31" (2/3) ... [2024-11-18 19:29:33,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8cbb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:29:33, skipping insertion in model container [2024-11-18 19:29:33,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:29:33" (3/3) ... [2024-11-18 19:29:33,333 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-18.i [2024-11-18 19:29:33,351 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:29:33,352 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:29:33,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:29:33,451 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;@28789bf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:29:33,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:29:33,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 156 states have (on average 1.5192307692307692) internal successors, (237), 157 states have internal predecessors, (237), 82 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-18 19:29:33,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:33,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:33,490 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:33,490 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:33,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1509631392, now seen corresponding path program 1 times [2024-11-18 19:29:33,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:33,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166606288] [2024-11-18 19:29:33,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:33,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:34,204 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 13122 trivial. 0 not checked. [2024-11-18 19:29:34,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:34,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166606288] [2024-11-18 19:29:34,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166606288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:29:34,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476685396] [2024-11-18 19:29:34,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:34,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:29:34,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:29:34,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:29:34,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:29:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:34,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:29:34,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:29:34,661 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 13122 trivial. 0 not checked. [2024-11-18 19:29:34,661 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:29:34,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476685396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:34,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:29:34,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:29:34,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305079306] [2024-11-18 19:29:34,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:34,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:29:34,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:34,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:29:34,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:29:34,707 INFO L87 Difference]: Start difference. First operand has 241 states, 156 states have (on average 1.5192307692307692) internal successors, (237), 157 states have internal predecessors, (237), 82 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) Second operand has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:29:34,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:34,778 INFO L93 Difference]: Finished difference Result 475 states and 878 transitions. [2024-11-18 19:29:34,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:29:34,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 2 states have call successors, (82) Word has length 518 [2024-11-18 19:29:34,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:34,794 INFO L225 Difference]: With dead ends: 475 [2024-11-18 19:29:34,795 INFO L226 Difference]: Without dead ends: 237 [2024-11-18 19:29:34,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:29:34,805 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:34,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:29:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-18 19:29:34,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-11-18 19:29:34,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 153 states have (on average 1.4901960784313726) internal successors, (228), 153 states have internal predecessors, (228), 82 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-18 19:29:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 392 transitions. [2024-11-18 19:29:34,909 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 392 transitions. Word has length 518 [2024-11-18 19:29:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:34,910 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 392 transitions. [2024-11-18 19:29:34,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:29:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 392 transitions. [2024-11-18 19:29:34,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:34,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:34,925 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:34,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:29:35,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:29:35,130 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:35,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:35,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2126357984, now seen corresponding path program 1 times [2024-11-18 19:29:35,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:35,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740779278] [2024-11-18 19:29:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:35,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:35,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:35,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740779278] [2024-11-18 19:29:35,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740779278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:35,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:35,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:29:35,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235869755] [2024-11-18 19:29:35,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:35,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:29:35,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:35,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:29:35,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:29:35,637 INFO L87 Difference]: Start difference. First operand 237 states and 392 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:35,757 INFO L93 Difference]: Finished difference Result 704 states and 1168 transitions. [2024-11-18 19:29:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:29:35,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 518 [2024-11-18 19:29:35,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:35,767 INFO L225 Difference]: With dead ends: 704 [2024-11-18 19:29:35,769 INFO L226 Difference]: Without dead ends: 470 [2024-11-18 19:29:35,772 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 19:29:35,774 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 376 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:35,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 763 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:29:35,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-18 19:29:35,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 468. [2024-11-18 19:29:35,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 301 states have (on average 1.478405315614618) internal successors, (445), 301 states have internal predecessors, (445), 164 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (164), 164 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-18 19:29:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 773 transitions. [2024-11-18 19:29:35,886 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 773 transitions. Word has length 518 [2024-11-18 19:29:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:35,891 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 773 transitions. [2024-11-18 19:29:35,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 773 transitions. [2024-11-18 19:29:35,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:35,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:35,905 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:35,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:29:35,906 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:35,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:35,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1219153636, now seen corresponding path program 1 times [2024-11-18 19:29:35,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:35,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836067613] [2024-11-18 19:29:35,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:35,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:36,197 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:36,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:36,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836067613] [2024-11-18 19:29:36,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836067613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:36,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:36,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:29:36,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759567116] [2024-11-18 19:29:36,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:36,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:29:36,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:36,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:29:36,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:29:36,205 INFO L87 Difference]: Start difference. First operand 468 states and 773 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:36,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:36,276 INFO L93 Difference]: Finished difference Result 1181 states and 1954 transitions. [2024-11-18 19:29:36,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:29:36,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 518 [2024-11-18 19:29:36,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:36,289 INFO L225 Difference]: With dead ends: 1181 [2024-11-18 19:29:36,290 INFO L226 Difference]: Without dead ends: 716 [2024-11-18 19:29:36,292 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 19:29:36,294 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 184 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:36,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 763 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:29:36,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-18 19:29:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 712. [2024-11-18 19:29:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 509 states have (on average 1.5343811394891944) internal successors, (781), 511 states have internal predecessors, (781), 198 states have call successors, (198), 4 states have call predecessors, (198), 4 states have return successors, (198), 196 states have call predecessors, (198), 198 states have call successors, (198) [2024-11-18 19:29:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1177 transitions. [2024-11-18 19:29:36,371 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1177 transitions. Word has length 518 [2024-11-18 19:29:36,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:36,377 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 1177 transitions. [2024-11-18 19:29:36,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:36,378 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1177 transitions. [2024-11-18 19:29:36,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:36,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:36,389 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:36,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:29:36,390 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:36,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:36,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1157114022, now seen corresponding path program 1 times [2024-11-18 19:29:36,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:36,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342171902] [2024-11-18 19:29:36,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:36,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:36,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:36,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342171902] [2024-11-18 19:29:36,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342171902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:36,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:36,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:29:36,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205076239] [2024-11-18 19:29:36,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:36,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:29:36,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:36,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:29:36,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:29:36,945 INFO L87 Difference]: Start difference. First operand 712 states and 1177 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:37,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:37,803 INFO L93 Difference]: Finished difference Result 2397 states and 3933 transitions. [2024-11-18 19:29:37,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:29:37,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 518 [2024-11-18 19:29:37,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:37,820 INFO L225 Difference]: With dead ends: 2397 [2024-11-18 19:29:37,820 INFO L226 Difference]: Without dead ends: 1688 [2024-11-18 19:29:37,825 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 19:29:37,826 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 514 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:37,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1100 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 19:29:37,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2024-11-18 19:29:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1310. [2024-11-18 19:29:38,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 951 states have (on average 1.5362776025236593) internal successors, (1461), 957 states have internal predecessors, (1461), 350 states have call successors, (350), 8 states have call predecessors, (350), 8 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) [2024-11-18 19:29:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 2161 transitions. [2024-11-18 19:29:38,023 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 2161 transitions. Word has length 518 [2024-11-18 19:29:38,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:38,024 INFO L471 AbstractCegarLoop]: Abstraction has 1310 states and 2161 transitions. [2024-11-18 19:29:38,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 2161 transitions. [2024-11-18 19:29:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:38,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:38,037 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:38,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:29:38,038 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:38,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:38,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1549505372, now seen corresponding path program 1 times [2024-11-18 19:29:38,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:38,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587867365] [2024-11-18 19:29:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:38,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:38,438 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:38,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:38,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587867365] [2024-11-18 19:29:38,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587867365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:38,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:38,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:29:38,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290812255] [2024-11-18 19:29:38,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:38,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:29:38,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:38,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:29:38,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:29:38,443 INFO L87 Difference]: Start difference. First operand 1310 states and 2161 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:38,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:38,605 INFO L93 Difference]: Finished difference Result 3315 states and 5455 transitions. [2024-11-18 19:29:38,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:29:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 518 [2024-11-18 19:29:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:38,623 INFO L225 Difference]: With dead ends: 3315 [2024-11-18 19:29:38,623 INFO L226 Difference]: Without dead ends: 2008 [2024-11-18 19:29:38,630 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 19:29:38,632 INFO L432 NwaCegarLoop]: 684 mSDtfsCounter, 386 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:38,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1071 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:29:38,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2024-11-18 19:29:38,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1303. [2024-11-18 19:29:38,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 883 states have (on average 1.4824462061155153) internal successors, (1309), 890 states have internal predecessors, (1309), 409 states have call successors, (409), 10 states have call predecessors, (409), 10 states have return successors, (409), 402 states have call predecessors, (409), 409 states have call successors, (409) [2024-11-18 19:29:38,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 2127 transitions. [2024-11-18 19:29:38,872 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 2127 transitions. Word has length 518 [2024-11-18 19:29:38,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:38,874 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 2127 transitions. [2024-11-18 19:29:38,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:38,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 2127 transitions. [2024-11-18 19:29:38,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:38,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:38,883 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:38,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:29:38,884 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:38,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:38,884 INFO L85 PathProgramCache]: Analyzing trace with hash -455514148, now seen corresponding path program 1 times [2024-11-18 19:29:38,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:38,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435604245] [2024-11-18 19:29:38,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:38,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:39,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:39,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435604245] [2024-11-18 19:29:39,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435604245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:39,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:39,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:29:39,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772464514] [2024-11-18 19:29:39,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:39,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:29:39,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:39,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:29:39,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:29:39,437 INFO L87 Difference]: Start difference. First operand 1303 states and 2127 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:29:41,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:41,570 INFO L93 Difference]: Finished difference Result 6489 states and 10508 transitions. [2024-11-18 19:29:41,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:29:41,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 518 [2024-11-18 19:29:41,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:41,604 INFO L225 Difference]: With dead ends: 6489 [2024-11-18 19:29:41,604 INFO L226 Difference]: Without dead ends: 5294 [2024-11-18 19:29:41,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:29:41,612 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 1518 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:41,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1654 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [758 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 19:29:41,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2024-11-18 19:29:42,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 2847. [2024-11-18 19:29:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 2008 states have (on average 1.5139442231075697) internal successors, (3040), 2022 states have internal predecessors, (3040), 818 states have call successors, (818), 20 states have call predecessors, (818), 20 states have return successors, (818), 804 states have call predecessors, (818), 818 states have call successors, (818) [2024-11-18 19:29:42,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 4676 transitions. [2024-11-18 19:29:42,121 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 4676 transitions. Word has length 518 [2024-11-18 19:29:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:42,122 INFO L471 AbstractCegarLoop]: Abstraction has 2847 states and 4676 transitions. [2024-11-18 19:29:42,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:29:42,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 4676 transitions. [2024-11-18 19:29:42,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:42,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:42,132 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:42,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:29:42,133 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:42,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:42,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2043862050, now seen corresponding path program 1 times [2024-11-18 19:29:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:42,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763165184] [2024-11-18 19:29:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:42,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:42,864 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:42,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:42,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763165184] [2024-11-18 19:29:42,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763165184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:42,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:42,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:29:42,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855770036] [2024-11-18 19:29:42,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:42,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:29:42,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:42,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:29:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:29:42,870 INFO L87 Difference]: Start difference. First operand 2847 states and 4676 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:44,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:44,914 INFO L93 Difference]: Finished difference Result 12102 states and 19811 transitions. [2024-11-18 19:29:44,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 19:29:44,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 518 [2024-11-18 19:29:44,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:44,980 INFO L225 Difference]: With dead ends: 12102 [2024-11-18 19:29:44,980 INFO L226 Difference]: Without dead ends: 9258 [2024-11-18 19:29:44,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:29:44,997 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 1682 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:44,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 3413 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 19:29:45,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9258 states. [2024-11-18 19:29:46,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9258 to 9226. [2024-11-18 19:29:46,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9226 states, 6564 states have (on average 1.4964960390006095) internal successors, (9823), 6625 states have internal predecessors, (9823), 2587 states have call successors, (2587), 74 states have call predecessors, (2587), 74 states have return successors, (2587), 2526 states have call predecessors, (2587), 2587 states have call successors, (2587) [2024-11-18 19:29:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9226 states to 9226 states and 14997 transitions. [2024-11-18 19:29:46,242 INFO L78 Accepts]: Start accepts. Automaton has 9226 states and 14997 transitions. Word has length 518 [2024-11-18 19:29:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:46,243 INFO L471 AbstractCegarLoop]: Abstraction has 9226 states and 14997 transitions. [2024-11-18 19:29:46,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:46,244 INFO L276 IsEmpty]: Start isEmpty. Operand 9226 states and 14997 transitions. [2024-11-18 19:29:46,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:46,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:46,255 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:46,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:29:46,255 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:46,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:46,256 INFO L85 PathProgramCache]: Analyzing trace with hash -936594406, now seen corresponding path program 1 times [2024-11-18 19:29:46,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:46,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398228412] [2024-11-18 19:29:46,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:46,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:46,487 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:46,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:46,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398228412] [2024-11-18 19:29:46,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398228412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:46,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:46,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:29:46,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089252229] [2024-11-18 19:29:46,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:46,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:29:46,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:46,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:29:46,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:29:46,494 INFO L87 Difference]: Start difference. First operand 9226 states and 14997 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:47,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:47,150 INFO L93 Difference]: Finished difference Result 16122 states and 26115 transitions. [2024-11-18 19:29:47,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:29:47,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 518 [2024-11-18 19:29:47,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:47,289 INFO L225 Difference]: With dead ends: 16122 [2024-11-18 19:29:47,290 INFO L226 Difference]: Without dead ends: 7004 [2024-11-18 19:29:47,330 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 19:29:47,332 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 203 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:47,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 865 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:29:47,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7004 states. [2024-11-18 19:29:48,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7004 to 5761. [2024-11-18 19:29:48,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5761 states, 3912 states have (on average 1.4570552147239264) internal successors, (5700), 3936 states have internal predecessors, (5700), 1784 states have call successors, (1784), 64 states have call predecessors, (1784), 64 states have return successors, (1784), 1760 states have call predecessors, (1784), 1784 states have call successors, (1784) [2024-11-18 19:29:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5761 states to 5761 states and 9268 transitions. [2024-11-18 19:29:48,524 INFO L78 Accepts]: Start accepts. Automaton has 5761 states and 9268 transitions. Word has length 518 [2024-11-18 19:29:48,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:48,525 INFO L471 AbstractCegarLoop]: Abstraction has 5761 states and 9268 transitions. [2024-11-18 19:29:48,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:48,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5761 states and 9268 transitions. [2024-11-18 19:29:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:48,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:48,532 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:48,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:29:48,533 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:48,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:48,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1351722402, now seen corresponding path program 1 times [2024-11-18 19:29:48,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:48,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838852023] [2024-11-18 19:29:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:48,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:48,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:48,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838852023] [2024-11-18 19:29:48,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838852023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:48,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:48,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:29:48,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471943831] [2024-11-18 19:29:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:48,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:29:48,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:48,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:29:48,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:29:48,942 INFO L87 Difference]: Start difference. First operand 5761 states and 9268 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:49,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:49,933 INFO L93 Difference]: Finished difference Result 12868 states and 20710 transitions. [2024-11-18 19:29:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:29:49,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 518 [2024-11-18 19:29:49,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:49,978 INFO L225 Difference]: With dead ends: 12868 [2024-11-18 19:29:49,979 INFO L226 Difference]: Without dead ends: 7110 [2024-11-18 19:29:50,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:29:50,002 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 237 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:50,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1049 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:29:50,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7110 states. [2024-11-18 19:29:50,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7110 to 7108. [2024-11-18 19:29:50,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7108 states, 4797 states have (on average 1.4542422347300397) internal successors, (6976), 4827 states have internal predecessors, (6976), 2230 states have call successors, (2230), 80 states have call predecessors, (2230), 80 states have return successors, (2230), 2200 states have call predecessors, (2230), 2230 states have call successors, (2230) [2024-11-18 19:29:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7108 states to 7108 states and 11436 transitions. [2024-11-18 19:29:51,038 INFO L78 Accepts]: Start accepts. Automaton has 7108 states and 11436 transitions. Word has length 518 [2024-11-18 19:29:51,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:51,039 INFO L471 AbstractCegarLoop]: Abstraction has 7108 states and 11436 transitions. [2024-11-18 19:29:51,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand 7108 states and 11436 transitions. [2024-11-18 19:29:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:51,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:51,051 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:51,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:29:51,052 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:51,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:51,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1746089188, now seen corresponding path program 1 times [2024-11-18 19:29:51,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:51,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688809227] [2024-11-18 19:29:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:51,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:51,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:51,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688809227] [2024-11-18 19:29:51,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688809227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:51,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:51,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:29:51,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884137029] [2024-11-18 19:29:51,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:51,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:29:51,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:51,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:29:51,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:29:51,488 INFO L87 Difference]: Start difference. First operand 7108 states and 11436 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:29:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:53,302 INFO L93 Difference]: Finished difference Result 17921 states and 28728 transitions. [2024-11-18 19:29:53,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:29:53,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 518 [2024-11-18 19:29:53,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:53,371 INFO L225 Difference]: With dead ends: 17921 [2024-11-18 19:29:53,371 INFO L226 Difference]: Without dead ends: 10816 [2024-11-18 19:29:53,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:29:53,409 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 969 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:53,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1513 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 19:29:53,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10816 states. [2024-11-18 19:29:54,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10816 to 7372. [2024-11-18 19:29:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7372 states, 5061 states have (on average 1.4550484094052558) internal successors, (7364), 5091 states have internal predecessors, (7364), 2230 states have call successors, (2230), 80 states have call predecessors, (2230), 80 states have return successors, (2230), 2200 states have call predecessors, (2230), 2230 states have call successors, (2230) [2024-11-18 19:29:54,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7372 states to 7372 states and 11824 transitions. [2024-11-18 19:29:54,307 INFO L78 Accepts]: Start accepts. Automaton has 7372 states and 11824 transitions. Word has length 518 [2024-11-18 19:29:54,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:54,308 INFO L471 AbstractCegarLoop]: Abstraction has 7372 states and 11824 transitions. [2024-11-18 19:29:54,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:29:54,309 INFO L276 IsEmpty]: Start isEmpty. Operand 7372 states and 11824 transitions. [2024-11-18 19:29:54,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:54,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:54,317 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:54,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:29:54,317 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:54,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:54,318 INFO L85 PathProgramCache]: Analyzing trace with hash 960530206, now seen corresponding path program 1 times [2024-11-18 19:29:54,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:54,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409600342] [2024-11-18 19:29:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:54,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:54,911 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:54,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:54,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409600342] [2024-11-18 19:29:54,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409600342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:54,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:54,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:29:54,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625431041] [2024-11-18 19:29:54,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:54,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:29:54,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:54,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:29:54,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:29:54,914 INFO L87 Difference]: Start difference. First operand 7372 states and 11824 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:29:56,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:56,440 INFO L93 Difference]: Finished difference Result 17319 states and 27652 transitions. [2024-11-18 19:29:56,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:29:56,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 518 [2024-11-18 19:29:56,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:56,505 INFO L225 Difference]: With dead ends: 17319 [2024-11-18 19:29:56,506 INFO L226 Difference]: Without dead ends: 9950 [2024-11-18 19:29:56,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:29:56,542 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 1176 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:56,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 1796 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 19:29:56,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9950 states. [2024-11-18 19:29:57,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9950 to 6164. [2024-11-18 19:29:57,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6164 states, 4189 states have (on average 1.4502267844354262) internal successors, (6075), 4211 states have internal predecessors, (6075), 1902 states have call successors, (1902), 72 states have call predecessors, (1902), 72 states have return successors, (1902), 1880 states have call predecessors, (1902), 1902 states have call successors, (1902) [2024-11-18 19:29:57,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6164 states to 6164 states and 9879 transitions. [2024-11-18 19:29:57,714 INFO L78 Accepts]: Start accepts. Automaton has 6164 states and 9879 transitions. Word has length 518 [2024-11-18 19:29:57,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:57,715 INFO L471 AbstractCegarLoop]: Abstraction has 6164 states and 9879 transitions. [2024-11-18 19:29:57,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:29:57,716 INFO L276 IsEmpty]: Start isEmpty. Operand 6164 states and 9879 transitions. [2024-11-18 19:29:57,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-18 19:29:57,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:57,725 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:57,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:29:57,725 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:57,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:57,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1993854178, now seen corresponding path program 1 times [2024-11-18 19:29:57,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:57,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174679192] [2024-11-18 19:29:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:57,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:29:58,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:58,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174679192] [2024-11-18 19:29:58,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174679192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:58,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:58,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:29:58,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109363963] [2024-11-18 19:29:58,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:58,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:29:58,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:58,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:29:58,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:29:58,039 INFO L87 Difference]: Start difference. First operand 6164 states and 9879 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:29:59,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:59,296 INFO L93 Difference]: Finished difference Result 16549 states and 26469 transitions. [2024-11-18 19:29:59,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:29:59,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 518 [2024-11-18 19:29:59,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:59,368 INFO L225 Difference]: With dead ends: 16549 [2024-11-18 19:29:59,368 INFO L226 Difference]: Without dead ends: 10388 [2024-11-18 19:29:59,423 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 19:29:59,424 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 221 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:59,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 892 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:29:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10388 states. [2024-11-18 19:30:00,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10388 to 10354. [2024-11-18 19:30:00,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10354 states, 7515 states have (on average 1.4815701929474385) internal successors, (11134), 7569 states have internal predecessors, (11134), 2702 states have call successors, (2702), 136 states have call predecessors, (2702), 136 states have return successors, (2702), 2648 states have call predecessors, (2702), 2702 states have call successors, (2702) [2024-11-18 19:30:00,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10354 states to 10354 states and 16538 transitions. [2024-11-18 19:30:00,585 INFO L78 Accepts]: Start accepts. Automaton has 10354 states and 16538 transitions. Word has length 518 [2024-11-18 19:30:00,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:00,586 INFO L471 AbstractCegarLoop]: Abstraction has 10354 states and 16538 transitions. [2024-11-18 19:30:00,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:30:00,587 INFO L276 IsEmpty]: Start isEmpty. Operand 10354 states and 16538 transitions. [2024-11-18 19:30:00,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2024-11-18 19:30:00,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:00,599 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:00,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:30:00,600 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:00,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:00,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1880483907, now seen corresponding path program 1 times [2024-11-18 19:30:00,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:00,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234272044] [2024-11-18 19:30:00,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:00,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:01,116 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:30:01,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:01,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234272044] [2024-11-18 19:30:01,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234272044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:01,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:01,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:30:01,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951901095] [2024-11-18 19:30:01,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:01,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:30:01,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:01,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:30:01,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:30:01,121 INFO L87 Difference]: Start difference. First operand 10354 states and 16538 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:30:02,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:02,340 INFO L93 Difference]: Finished difference Result 31056 states and 49608 transitions. [2024-11-18 19:30:02,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:30:02,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 519 [2024-11-18 19:30:02,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:02,462 INFO L225 Difference]: With dead ends: 31056 [2024-11-18 19:30:02,462 INFO L226 Difference]: Without dead ends: 20705 [2024-11-18 19:30:02,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 19:30:02,506 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 383 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:02,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 814 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:30:02,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20705 states. [2024-11-18 19:30:04,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20705 to 20703. [2024-11-18 19:30:04,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20703 states, 15026 states have (on average 1.4766404898176495) internal successors, (22188), 15134 states have internal predecessors, (22188), 5404 states have call successors, (5404), 272 states have call predecessors, (5404), 272 states have return successors, (5404), 5296 states have call predecessors, (5404), 5404 states have call successors, (5404) [2024-11-18 19:30:05,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20703 states to 20703 states and 32996 transitions. [2024-11-18 19:30:05,081 INFO L78 Accepts]: Start accepts. Automaton has 20703 states and 32996 transitions. Word has length 519 [2024-11-18 19:30:05,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:05,083 INFO L471 AbstractCegarLoop]: Abstraction has 20703 states and 32996 transitions. [2024-11-18 19:30:05,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:30:05,083 INFO L276 IsEmpty]: Start isEmpty. Operand 20703 states and 32996 transitions. [2024-11-18 19:30:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2024-11-18 19:30:05,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:05,100 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:05,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:30:05,101 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:05,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:05,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1987643129, now seen corresponding path program 1 times [2024-11-18 19:30:05,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:05,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308984343] [2024-11-18 19:30:05,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:05,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:06,013 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:30:06,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:06,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308984343] [2024-11-18 19:30:06,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308984343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:06,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:06,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:30:06,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160134704] [2024-11-18 19:30:06,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:06,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:30:06,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:06,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:30:06,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:06,017 INFO L87 Difference]: Start difference. First operand 20703 states and 32996 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:30:08,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:08,398 INFO L93 Difference]: Finished difference Result 51899 states and 82618 transitions. [2024-11-18 19:30:08,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:30:08,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 519 [2024-11-18 19:30:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:08,555 INFO L225 Difference]: With dead ends: 51899 [2024-11-18 19:30:08,555 INFO L226 Difference]: Without dead ends: 31199 [2024-11-18 19:30:08,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 19:30:08,629 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 235 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:08,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 767 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:30:08,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31199 states. [2024-11-18 19:30:11,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31199 to 31197. [2024-11-18 19:30:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31197 states, 22682 states have (on average 1.4705934220968169) internal successors, (33356), 22844 states have internal predecessors, (33356), 8106 states have call successors, (8106), 408 states have call predecessors, (8106), 408 states have return successors, (8106), 7944 states have call predecessors, (8106), 8106 states have call successors, (8106) [2024-11-18 19:30:12,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31197 states to 31197 states and 49568 transitions. [2024-11-18 19:30:12,176 INFO L78 Accepts]: Start accepts. Automaton has 31197 states and 49568 transitions. Word has length 519 [2024-11-18 19:30:12,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:12,177 INFO L471 AbstractCegarLoop]: Abstraction has 31197 states and 49568 transitions. [2024-11-18 19:30:12,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2024-11-18 19:30:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand 31197 states and 49568 transitions. [2024-11-18 19:30:12,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2024-11-18 19:30:12,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:12,195 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:12,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 19:30:12,196 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:12,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:12,197 INFO L85 PathProgramCache]: Analyzing trace with hash 142275963, now seen corresponding path program 1 times [2024-11-18 19:30:12,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:12,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048116980] [2024-11-18 19:30:12,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:12,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:16,742 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:30:16,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:16,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048116980] [2024-11-18 19:30:16,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048116980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:16,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:16,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 19:30:16,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598148937] [2024-11-18 19:30:16,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:16,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 19:30:16,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:16,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 19:30:16,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:30:16,747 INFO L87 Difference]: Start difference. First operand 31197 states and 49568 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:30:24,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:24,545 INFO L93 Difference]: Finished difference Result 49180 states and 78213 transitions. [2024-11-18 19:30:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 19:30:24,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 519 [2024-11-18 19:30:24,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:24,697 INFO L225 Difference]: With dead ends: 49180 [2024-11-18 19:30:24,697 INFO L226 Difference]: Without dead ends: 32330 [2024-11-18 19:30:24,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:30:24,751 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 1711 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:24,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 3169 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-18 19:30:24,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32330 states. [2024-11-18 19:30:27,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32330 to 31793. [2024-11-18 19:30:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31793 states, 23146 states have (on average 1.4706644776635271) internal successors, (34040), 23312 states have internal predecessors, (34040), 8230 states have call successors, (8230), 416 states have call predecessors, (8230), 416 states have return successors, (8230), 8064 states have call predecessors, (8230), 8230 states have call successors, (8230) [2024-11-18 19:30:28,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31793 states to 31793 states and 50500 transitions. [2024-11-18 19:30:28,227 INFO L78 Accepts]: Start accepts. Automaton has 31793 states and 50500 transitions. Word has length 519 [2024-11-18 19:30:28,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:28,232 INFO L471 AbstractCegarLoop]: Abstraction has 31793 states and 50500 transitions. [2024-11-18 19:30:28,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 2 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-18 19:30:28,232 INFO L276 IsEmpty]: Start isEmpty. Operand 31793 states and 50500 transitions. [2024-11-18 19:30:28,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2024-11-18 19:30:28,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:28,277 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:28,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 19:30:28,277 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:28,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:28,278 INFO L85 PathProgramCache]: Analyzing trace with hash 801807485, now seen corresponding path program 1 times [2024-11-18 19:30:28,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:28,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419599708] [2024-11-18 19:30:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:28,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2024-11-18 19:30:30,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:30,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419599708] [2024-11-18 19:30:30,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419599708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:30,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:30,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 19:30:30,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928574918] [2024-11-18 19:30:30,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:30,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 19:30:30,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:30,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 19:30:30,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:30:30,876 INFO L87 Difference]: Start difference. First operand 31793 states and 50500 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82)