./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.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 3893bf360a85f05760b77c740edd1d0464d11dea1da72a67fc941d09eb87c9f1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:50:00,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:50:01,066 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:50:01,073 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:50:01,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:50:01,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:50:01,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:50:01,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:50:01,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:50:01,105 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:50:01,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:50:01,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:50:01,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:50:01,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:50:01,107 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:50:01,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:50:01,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:50:01,109 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:50:01,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:50:01,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:50:01,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:50:01,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:50:01,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:50:01,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:50:01,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:50:01,115 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:50:01,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:50:01,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:50:01,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:50:01,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:50:01,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:50:01,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:50:01,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:50:01,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:50:01,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:50:01,117 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:50:01,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:50:01,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:50:01,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:50:01,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:50:01,119 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:50:01,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:50:01,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3893bf360a85f05760b77c740edd1d0464d11dea1da72a67fc941d09eb87c9f1 [2024-11-18 19:50:01,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:50:01,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:50:01,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:50:01,407 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:50:01,408 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:50:01,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i [2024-11-18 19:50:02,954 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:50:03,248 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:50:03,249 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i [2024-11-18 19:50:03,274 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2821bedfc/20a9fb894da84cd2b365259db056b206/FLAG3b2e2e951 [2024-11-18 19:50:03,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2821bedfc/20a9fb894da84cd2b365259db056b206 [2024-11-18 19:50:03,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:50:03,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:50:03,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:50:03,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:50:03,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:50:03,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:03,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56be9673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03, skipping insertion in model container [2024-11-18 19:50:03,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:03,372 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:50:03,613 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i[916,929] [2024-11-18 19:50:03,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:50:03,831 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:50:03,844 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-17.i[916,929] [2024-11-18 19:50:03,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:50:03,975 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:50:03,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03 WrapperNode [2024-11-18 19:50:03,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:50:03,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:50:03,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:50:03,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:50:03,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,089 INFO L138 Inliner]: procedures = 26, calls = 108, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 871 [2024-11-18 19:50:04,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:50:04,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:50:04,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:50:04,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:50:04,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,118 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,164 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 19:50:04,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,248 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:50:04,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:50:04,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:50:04,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:50:04,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (1/1) ... [2024-11-18 19:50:04,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:50:04,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:50:04,289 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 19:50:04,293 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 19:50:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:50:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:50:04,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:50:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:50:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:50:04,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:50:04,478 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:50:04,480 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:50:05,882 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-18 19:50:05,883 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:50:05,908 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:50:05,909 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:50:05,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:05 BoogieIcfgContainer [2024-11-18 19:50:05,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:50:05,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:50:05,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:50:05,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:50:05,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:50:03" (1/3) ... [2024-11-18 19:50:05,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bf41d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:05, skipping insertion in model container [2024-11-18 19:50:05,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:03" (2/3) ... [2024-11-18 19:50:05,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bf41d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:05, skipping insertion in model container [2024-11-18 19:50:05,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:05" (3/3) ... [2024-11-18 19:50:05,922 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-17.i [2024-11-18 19:50:05,937 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:50:05,938 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:50:06,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:50:06,030 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;@301a1af6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:50:06,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:50:06,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 363 states, 265 states have (on average 1.6150943396226416) internal successors, (428), 266 states have internal predecessors, (428), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-18 19:50:06,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-18 19:50:06,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:06,104 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:06,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:06,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:06,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1601304935, now seen corresponding path program 1 times [2024-11-18 19:50:06,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:06,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904155866] [2024-11-18 19:50:06,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:07,201 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:07,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:07,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904155866] [2024-11-18 19:50:07,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904155866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:07,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:07,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:07,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52861900] [2024-11-18 19:50:07,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:07,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:07,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:07,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:07,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:07,246 INFO L87 Difference]: Start difference. First operand has 363 states, 265 states have (on average 1.6150943396226416) internal successors, (428), 266 states have internal predecessors, (428), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:07,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:07,460 INFO L93 Difference]: Finished difference Result 960 states and 1773 transitions. [2024-11-18 19:50:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:07,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 622 [2024-11-18 19:50:07,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:07,488 INFO L225 Difference]: With dead ends: 960 [2024-11-18 19:50:07,488 INFO L226 Difference]: Without dead ends: 600 [2024-11-18 19:50:07,499 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 19:50:07,502 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 374 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:07,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1261 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:50:07,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-18 19:50:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 597. [2024-11-18 19:50:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 471 states have (on average 1.6284501061571126) internal successors, (767), 472 states have internal predecessors, (767), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-18 19:50:07,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1013 transitions. [2024-11-18 19:50:07,700 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1013 transitions. Word has length 622 [2024-11-18 19:50:07,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:07,707 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 1013 transitions. [2024-11-18 19:50:07,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1013 transitions. [2024-11-18 19:50:07,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2024-11-18 19:50:07,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:07,725 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:07,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 19:50:07,727 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:07,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:07,728 INFO L85 PathProgramCache]: Analyzing trace with hash 2025195959, now seen corresponding path program 1 times [2024-11-18 19:50:07,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:07,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109259034] [2024-11-18 19:50:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:07,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:08,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:08,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109259034] [2024-11-18 19:50:08,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109259034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:08,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:08,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:08,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266709887] [2024-11-18 19:50:08,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:08,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:08,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:08,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:08,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:08,187 INFO L87 Difference]: Start difference. First operand 597 states and 1013 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:08,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:08,290 INFO L93 Difference]: Finished difference Result 1522 states and 2566 transitions. [2024-11-18 19:50:08,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:08,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 623 [2024-11-18 19:50:08,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:08,303 INFO L225 Difference]: With dead ends: 1522 [2024-11-18 19:50:08,303 INFO L226 Difference]: Without dead ends: 928 [2024-11-18 19:50:08,306 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 19:50:08,308 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 316 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:08,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1193 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:08,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-18 19:50:08,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 925. [2024-11-18 19:50:08,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 699 states have (on average 1.5851216022889842) internal successors, (1108), 702 states have internal predecessors, (1108), 221 states have call successors, (221), 4 states have call predecessors, (221), 4 states have return successors, (221), 218 states have call predecessors, (221), 221 states have call successors, (221) [2024-11-18 19:50:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1550 transitions. [2024-11-18 19:50:08,434 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1550 transitions. Word has length 623 [2024-11-18 19:50:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:08,438 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1550 transitions. [2024-11-18 19:50:08,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1550 transitions. [2024-11-18 19:50:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-18 19:50:08,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:08,453 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:08,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:50:08,453 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:08,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:08,458 INFO L85 PathProgramCache]: Analyzing trace with hash -584200155, now seen corresponding path program 1 times [2024-11-18 19:50:08,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:08,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840543767] [2024-11-18 19:50:08,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:08,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:08,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:08,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840543767] [2024-11-18 19:50:08,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840543767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:08,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:08,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:08,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320086502] [2024-11-18 19:50:08,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:08,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:08,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:08,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:08,815 INFO L87 Difference]: Start difference. First operand 925 states and 1550 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:08,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:08,965 INFO L93 Difference]: Finished difference Result 2554 states and 4277 transitions. [2024-11-18 19:50:08,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:08,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 624 [2024-11-18 19:50:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:09,000 INFO L225 Difference]: With dead ends: 2554 [2024-11-18 19:50:09,001 INFO L226 Difference]: Without dead ends: 1632 [2024-11-18 19:50:09,006 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 19:50:09,007 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 318 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:09,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1294 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:50:09,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-18 19:50:09,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1628. [2024-11-18 19:50:09,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1254 states have (on average 1.5701754385964912) internal successors, (1969), 1261 states have internal predecessors, (1969), 365 states have call successors, (365), 8 states have call predecessors, (365), 8 states have return successors, (365), 358 states have call predecessors, (365), 365 states have call successors, (365) [2024-11-18 19:50:09,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2699 transitions. [2024-11-18 19:50:09,140 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2699 transitions. Word has length 624 [2024-11-18 19:50:09,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:09,145 INFO L471 AbstractCegarLoop]: Abstraction has 1628 states and 2699 transitions. [2024-11-18 19:50:09,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:09,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2699 transitions. [2024-11-18 19:50:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-18 19:50:09,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:09,159 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:09,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:50:09,160 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:09,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:09,161 INFO L85 PathProgramCache]: Analyzing trace with hash 233448295, now seen corresponding path program 1 times [2024-11-18 19:50:09,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:09,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781291447] [2024-11-18 19:50:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:09,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:09,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:09,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781291447] [2024-11-18 19:50:09,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781291447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:09,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:09,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:50:09,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581611159] [2024-11-18 19:50:09,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:09,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:50:09,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:09,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:50:09,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:50:09,665 INFO L87 Difference]: Start difference. First operand 1628 states and 2699 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:10,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:10,453 INFO L93 Difference]: Finished difference Result 6259 states and 10236 transitions. [2024-11-18 19:50:10,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:50:10,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 624 [2024-11-18 19:50:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:10,482 INFO L225 Difference]: With dead ends: 6259 [2024-11-18 19:50:10,482 INFO L226 Difference]: Without dead ends: 4634 [2024-11-18 19:50:10,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:50:10,494 INFO L432 NwaCegarLoop]: 894 mSDtfsCounter, 746 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:10,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 2829 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:50:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4634 states. [2024-11-18 19:50:10,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4634 to 3036. [2024-11-18 19:50:10,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 2478 states have (on average 1.599273607748184) internal successors, (3963), 2493 states have internal predecessors, (3963), 541 states have call successors, (541), 16 states have call predecessors, (541), 16 states have return successors, (541), 526 states have call predecessors, (541), 541 states have call successors, (541) [2024-11-18 19:50:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 5045 transitions. [2024-11-18 19:50:10,763 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 5045 transitions. Word has length 624 [2024-11-18 19:50:10,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:10,764 INFO L471 AbstractCegarLoop]: Abstraction has 3036 states and 5045 transitions. [2024-11-18 19:50:10,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:10,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 5045 transitions. [2024-11-18 19:50:10,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-18 19:50:10,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:10,780 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:10,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:50:10,780 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:10,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:10,781 INFO L85 PathProgramCache]: Analyzing trace with hash -909054171, now seen corresponding path program 1 times [2024-11-18 19:50:10,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:10,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442710035] [2024-11-18 19:50:10,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:10,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:11,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:11,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442710035] [2024-11-18 19:50:11,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442710035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:11,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:11,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:11,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647020706] [2024-11-18 19:50:11,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:11,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:11,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:11,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:11,459 INFO L87 Difference]: Start difference. First operand 3036 states and 5045 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:11,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:11,731 INFO L93 Difference]: Finished difference Result 9098 states and 15121 transitions. [2024-11-18 19:50:11,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:11,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 624 [2024-11-18 19:50:11,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:11,765 INFO L225 Difference]: With dead ends: 9098 [2024-11-18 19:50:11,766 INFO L226 Difference]: Without dead ends: 6065 [2024-11-18 19:50:11,775 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 19:50:11,776 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 437 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:11,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1193 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:11,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6065 states. [2024-11-18 19:50:12,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 6063. [2024-11-18 19:50:12,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6063 states, 4948 states have (on average 1.5941794664510913) internal successors, (7888), 4978 states have internal predecessors, (7888), 1082 states have call successors, (1082), 32 states have call predecessors, (1082), 32 states have return successors, (1082), 1052 states have call predecessors, (1082), 1082 states have call successors, (1082) [2024-11-18 19:50:12,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6063 states to 6063 states and 10052 transitions. [2024-11-18 19:50:12,243 INFO L78 Accepts]: Start accepts. Automaton has 6063 states and 10052 transitions. Word has length 624 [2024-11-18 19:50:12,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:12,245 INFO L471 AbstractCegarLoop]: Abstraction has 6063 states and 10052 transitions. [2024-11-18 19:50:12,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:12,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6063 states and 10052 transitions. [2024-11-18 19:50:12,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-11-18 19:50:12,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:12,257 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:12,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:50:12,257 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:12,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:12,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1099060364, now seen corresponding path program 1 times [2024-11-18 19:50:12,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:12,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886902135] [2024-11-18 19:50:12,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:12,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:13,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:13,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886902135] [2024-11-18 19:50:13,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886902135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:13,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:13,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:50:13,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130103746] [2024-11-18 19:50:13,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:13,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:50:13,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:13,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:50:13,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:50:13,438 INFO L87 Difference]: Start difference. First operand 6063 states and 10052 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:14,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:14,297 INFO L93 Difference]: Finished difference Result 16456 states and 27427 transitions. [2024-11-18 19:50:14,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:50:14,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 625 [2024-11-18 19:50:14,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:14,366 INFO L225 Difference]: With dead ends: 16456 [2024-11-18 19:50:14,366 INFO L226 Difference]: Without dead ends: 10396 [2024-11-18 19:50:14,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:50:14,387 INFO L432 NwaCegarLoop]: 599 mSDtfsCounter, 646 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:14,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 2192 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:50:14,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10396 states. [2024-11-18 19:50:14,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10396 to 9434. [2024-11-18 19:50:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9434 states, 8222 states have (on average 1.6403551447336415) internal successors, (13487), 8252 states have internal predecessors, (13487), 1177 states have call successors, (1177), 34 states have call predecessors, (1177), 34 states have return successors, (1177), 1147 states have call predecessors, (1177), 1177 states have call successors, (1177) [2024-11-18 19:50:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9434 states to 9434 states and 15841 transitions. [2024-11-18 19:50:14,920 INFO L78 Accepts]: Start accepts. Automaton has 9434 states and 15841 transitions. Word has length 625 [2024-11-18 19:50:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:14,922 INFO L471 AbstractCegarLoop]: Abstraction has 9434 states and 15841 transitions. [2024-11-18 19:50:14,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 9434 states and 15841 transitions. [2024-11-18 19:50:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-18 19:50:14,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:14,935 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:14,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:50:14,935 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:14,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:14,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1538976950, now seen corresponding path program 1 times [2024-11-18 19:50:14,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:14,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979939547] [2024-11-18 19:50:14,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:14,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:16,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:16,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979939547] [2024-11-18 19:50:16,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979939547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:16,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:16,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 19:50:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402267409] [2024-11-18 19:50:16,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:16,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 19:50:16,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 19:50:16,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:50:16,855 INFO L87 Difference]: Start difference. First operand 9434 states and 15841 transitions. Second operand has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-18 19:50:25,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:25,473 INFO L93 Difference]: Finished difference Result 57572 states and 94024 transitions. [2024-11-18 19:50:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-18 19:50:25,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) Word has length 626 [2024-11-18 19:50:25,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:25,684 INFO L225 Difference]: With dead ends: 57572 [2024-11-18 19:50:25,685 INFO L226 Difference]: Without dead ends: 50810 [2024-11-18 19:50:25,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2024-11-18 19:50:25,731 INFO L432 NwaCegarLoop]: 1179 mSDtfsCounter, 5922 mSDsluCounter, 5309 mSDsCounter, 0 mSdLazyCounter, 2703 mSolverCounterSat, 1116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5922 SdHoareTripleChecker+Valid, 6488 SdHoareTripleChecker+Invalid, 3819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1116 IncrementalHoareTripleChecker+Valid, 2703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:25,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5922 Valid, 6488 Invalid, 3819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1116 Valid, 2703 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-18 19:50:25,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50810 states. [2024-11-18 19:50:27,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50810 to 18415. [2024-11-18 19:50:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18415 states, 16363 states have (on average 1.6341746623479803) internal successors, (26740), 16425 states have internal predecessors, (26740), 1977 states have call successors, (1977), 74 states have call predecessors, (1977), 74 states have return successors, (1977), 1915 states have call predecessors, (1977), 1977 states have call successors, (1977) [2024-11-18 19:50:27,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18415 states to 18415 states and 30694 transitions. [2024-11-18 19:50:27,352 INFO L78 Accepts]: Start accepts. Automaton has 18415 states and 30694 transitions. Word has length 626 [2024-11-18 19:50:27,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:27,354 INFO L471 AbstractCegarLoop]: Abstraction has 18415 states and 30694 transitions. [2024-11-18 19:50:27,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-18 19:50:27,354 INFO L276 IsEmpty]: Start isEmpty. Operand 18415 states and 30694 transitions. [2024-11-18 19:50:27,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-18 19:50:27,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:27,375 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:27,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:50:27,375 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:27,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:27,376 INFO L85 PathProgramCache]: Analyzing trace with hash -634454983, now seen corresponding path program 1 times [2024-11-18 19:50:27,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:27,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646332798] [2024-11-18 19:50:27,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:27,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:27,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:27,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646332798] [2024-11-18 19:50:27,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646332798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:27,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:27,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:27,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106719256] [2024-11-18 19:50:27,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:27,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:27,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:27,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:27,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:27,666 INFO L87 Difference]: Start difference. First operand 18415 states and 30694 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:28,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:28,346 INFO L93 Difference]: Finished difference Result 30954 states and 51499 transitions. [2024-11-18 19:50:28,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:28,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) Word has length 626 [2024-11-18 19:50:28,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:28,563 INFO L225 Difference]: With dead ends: 30954 [2024-11-18 19:50:28,563 INFO L226 Difference]: Without dead ends: 14332 [2024-11-18 19:50:28,601 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 19:50:28,602 INFO L432 NwaCegarLoop]: 837 mSDtfsCounter, 356 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:28,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1414 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:28,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14332 states. [2024-11-18 19:50:29,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14332 to 14330. [2024-11-18 19:50:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14330 states, 12685 states have (on average 1.6275128104059913) internal successors, (20645), 12731 states have internal predecessors, (20645), 1577 states have call successors, (1577), 67 states have call predecessors, (1577), 67 states have return successors, (1577), 1531 states have call predecessors, (1577), 1577 states have call successors, (1577) [2024-11-18 19:50:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14330 states to 14330 states and 23799 transitions. [2024-11-18 19:50:29,775 INFO L78 Accepts]: Start accepts. Automaton has 14330 states and 23799 transitions. Word has length 626 [2024-11-18 19:50:29,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:29,776 INFO L471 AbstractCegarLoop]: Abstraction has 14330 states and 23799 transitions. [2024-11-18 19:50:29,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95) [2024-11-18 19:50:29,777 INFO L276 IsEmpty]: Start isEmpty. Operand 14330 states and 23799 transitions. [2024-11-18 19:50:29,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-18 19:50:29,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:29,793 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:29,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:50:29,794 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:29,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:29,794 INFO L85 PathProgramCache]: Analyzing trace with hash 242275321, now seen corresponding path program 1 times [2024-11-18 19:50:29,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:29,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716416724] [2024-11-18 19:50:29,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:29,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:31,154 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:31,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:31,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716416724] [2024-11-18 19:50:31,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716416724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:31,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:31,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 19:50:31,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324786010] [2024-11-18 19:50:31,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:31,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 19:50:31,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:31,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 19:50:31,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:50:31,161 INFO L87 Difference]: Start difference. First operand 14330 states and 23799 transitions. Second operand has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-18 19:50:36,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:36,917 INFO L93 Difference]: Finished difference Result 66126 states and 108481 transitions. [2024-11-18 19:50:36,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-18 19:50:36,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) Word has length 626 [2024-11-18 19:50:36,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:37,140 INFO L225 Difference]: With dead ends: 66126 [2024-11-18 19:50:37,140 INFO L226 Difference]: Without dead ends: 55374 [2024-11-18 19:50:37,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2024-11-18 19:50:37,195 INFO L432 NwaCegarLoop]: 1416 mSDtfsCounter, 5306 mSDsluCounter, 6900 mSDsCounter, 0 mSdLazyCounter, 2977 mSolverCounterSat, 912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5306 SdHoareTripleChecker+Valid, 8316 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 2977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:37,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5306 Valid, 8316 Invalid, 3889 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [912 Valid, 2977 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-18 19:50:37,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55374 states. [2024-11-18 19:50:39,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55374 to 30440. [2024-11-18 19:50:39,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30440 states, 26817 states have (on average 1.6267666032740427) internal successors, (43625), 26925 states have internal predecessors, (43625), 3475 states have call successors, (3475), 147 states have call predecessors, (3475), 147 states have return successors, (3475), 3367 states have call predecessors, (3475), 3475 states have call successors, (3475) [2024-11-18 19:50:39,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30440 states to 30440 states and 50575 transitions. [2024-11-18 19:50:39,716 INFO L78 Accepts]: Start accepts. Automaton has 30440 states and 50575 transitions. Word has length 626 [2024-11-18 19:50:39,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:39,717 INFO L471 AbstractCegarLoop]: Abstraction has 30440 states and 50575 transitions. [2024-11-18 19:50:39,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-18 19:50:39,718 INFO L276 IsEmpty]: Start isEmpty. Operand 30440 states and 50575 transitions. [2024-11-18 19:50:39,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-18 19:50:39,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:39,745 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:39,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:50:39,746 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:39,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:39,747 INFO L85 PathProgramCache]: Analyzing trace with hash 105354453, now seen corresponding path program 1 times [2024-11-18 19:50:39,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:39,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363420602] [2024-11-18 19:50:39,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:39,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:42,556 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:50:42,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:42,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363420602] [2024-11-18 19:50:42,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363420602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:42,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:42,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 19:50:42,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267280758] [2024-11-18 19:50:42,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:42,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 19:50:42,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:42,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 19:50:42,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:50:42,560 INFO L87 Difference]: Start difference. First operand 30440 states and 50575 transitions. Second operand has 15 states, 15 states have (on average 10.333333333333334) internal successors, (155), 15 states have internal predecessors, (155), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-18 19:50:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:55,293 INFO L93 Difference]: Finished difference Result 176495 states and 292455 transitions. [2024-11-18 19:50:55,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 19:50:55,294 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.333333333333334) internal successors, (155), 15 states have internal predecessors, (155), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) Word has length 627 [2024-11-18 19:50:55,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:55,824 INFO L225 Difference]: With dead ends: 176495 [2024-11-18 19:50:55,824 INFO L226 Difference]: Without dead ends: 154653 [2024-11-18 19:50:56,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=285, Invalid=585, Unknown=0, NotChecked=0, Total=870 [2024-11-18 19:50:56,179 INFO L432 NwaCegarLoop]: 822 mSDtfsCounter, 6597 mSDsluCounter, 6919 mSDsCounter, 0 mSdLazyCounter, 3507 mSolverCounterSat, 767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6597 SdHoareTripleChecker+Valid, 7741 SdHoareTripleChecker+Invalid, 4274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 767 IncrementalHoareTripleChecker+Valid, 3507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:56,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6597 Valid, 7741 Invalid, 4274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [767 Valid, 3507 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-18 19:50:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154653 states. [2024-11-18 19:51:00,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154653 to 72703. [2024-11-18 19:51:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72703 states, 65555 states have (on average 1.6539394401647471) internal successors, (108424), 65771 states have internal predecessors, (108424), 6855 states have call successors, (6855), 292 states have call predecessors, (6855), 292 states have return successors, (6855), 6639 states have call predecessors, (6855), 6855 states have call successors, (6855) [2024-11-18 19:51:01,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72703 states to 72703 states and 122134 transitions. [2024-11-18 19:51:01,162 INFO L78 Accepts]: Start accepts. Automaton has 72703 states and 122134 transitions. Word has length 627 [2024-11-18 19:51:01,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:01,163 INFO L471 AbstractCegarLoop]: Abstraction has 72703 states and 122134 transitions. [2024-11-18 19:51:01,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.333333333333334) internal successors, (155), 15 states have internal predecessors, (155), 2 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2024-11-18 19:51:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand 72703 states and 122134 transitions. [2024-11-18 19:51:01,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-18 19:51:01,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:01,231 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:01,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:51:01,231 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:01,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:01,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1740979942, now seen corresponding path program 1 times [2024-11-18 19:51:01,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:01,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821267172] [2024-11-18 19:51:01,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:01,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-18 19:51:02,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:02,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821267172] [2024-11-18 19:51:02,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821267172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:02,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:02,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:51:02,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253971061] [2024-11-18 19:51:02,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:02,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:51:02,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:02,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:51:02,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:51:02,306 INFO L87 Difference]: Start difference. First operand 72703 states and 122134 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 1 states have call predecessors, (95), 1 states have call successors, (95)