./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-35.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-35.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 3158fa3d023f69512eee9279d2328b5cbe07498d18204302959fda73512afb8f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:51:20,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:51:20,636 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:51:20,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:51:20,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:51:20,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:51:20,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:51:20,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:51:20,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:51:20,666 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:51:20,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:51:20,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:51:20,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:51:20,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:51:20,667 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:51:20,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:51:20,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:51:20,668 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:51:20,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:51:20,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:51:20,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:51:20,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:51:20,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:51:20,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:51:20,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:51:20,671 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:51:20,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:51:20,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:51:20,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:51:20,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:51:20,672 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:51:20,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:51:20,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:51:20,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:51:20,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:51:20,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:51:20,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:51:20,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:51:20,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:51:20,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:51:20,674 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:51:20,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:51:20,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3158fa3d023f69512eee9279d2328b5cbe07498d18204302959fda73512afb8f [2024-11-18 19:51:20,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:51:20,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:51:20,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:51:20,913 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:51:20,913 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:51:20,914 INFO L431 ainManager$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-35.i [2024-11-18 19:51:22,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:51:22,585 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:51:22,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-35.i [2024-11-18 19:51:22,613 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/801d1f13e/a8a4914523a44b1c80e418187310f020/FLAGe2f5556ac [2024-11-18 19:51:22,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/801d1f13e/a8a4914523a44b1c80e418187310f020 [2024-11-18 19:51:22,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:51:22,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:51:22,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:51:22,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:51:22,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:51:22,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:51:22" (1/1) ... [2024-11-18 19:51:22,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f8728d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:22, skipping insertion in model container [2024-11-18 19:51:22,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:51:22" (1/1) ... [2024-11-18 19:51:22,668 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:51:22,848 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-35.i[916,929] [2024-11-18 19:51:23,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:51:23,112 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:51:23,123 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-35.i[916,929] [2024-11-18 19:51:23,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:51:23,204 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:51:23,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23 WrapperNode [2024-11-18 19:51:23,204 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:51:23,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:51:23,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:51:23,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:51:23,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,301 INFO L138 Inliner]: procedures = 26, calls = 133, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 824 [2024-11-18 19:51:23,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:51:23,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:51:23,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:51:23,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:51:23,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,369 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 19:51:23,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:51:23,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:51:23,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:51:23,421 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:51:23,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (1/1) ... [2024-11-18 19:51:23,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:51:23,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:51:23,454 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 19:51:23,461 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 19:51:23,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:51:23,499 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:51:23,500 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:51:23,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:51:23,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:51:23,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:51:23,605 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:51:23,607 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:51:24,777 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-18 19:51:24,777 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:51:24,795 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:51:24,795 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:51:24,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:51:24 BoogieIcfgContainer [2024-11-18 19:51:24,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:51:24,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:51:24,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:51:24,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:51:24,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:51:22" (1/3) ... [2024-11-18 19:51:24,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6834a859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:51:24, skipping insertion in model container [2024-11-18 19:51:24,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:23" (2/3) ... [2024-11-18 19:51:24,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6834a859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:51:24, skipping insertion in model container [2024-11-18 19:51:24,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:51:24" (3/3) ... [2024-11-18 19:51:24,805 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-35.i [2024-11-18 19:51:24,823 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:51:24,823 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:51:24,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:51:24,891 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;@6e661be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:51:24,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:51:24,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 224 states have (on average 1.5535714285714286) internal successors, (348), 225 states have internal predecessors, (348), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-18 19:51:24,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2024-11-18 19:51:24,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:24,932 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:24,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:24,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1037981504, now seen corresponding path program 1 times [2024-11-18 19:51:24,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:24,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944180538] [2024-11-18 19:51:24,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:24,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:25,558 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 28322 trivial. 0 not checked. [2024-11-18 19:51:25,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:25,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944180538] [2024-11-18 19:51:25,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944180538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:51:25,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725037916] [2024-11-18 19:51:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:25,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:51:25,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:51:25,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:51:25,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:51:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:25,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:51:26,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:51:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 28322 trivial. 0 not checked. [2024-11-18 19:51:26,089 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:51:26,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725037916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:26,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:51:26,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:51:26,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665086915] [2024-11-18 19:51:26,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:26,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:51:26,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:26,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:51:26,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:51:26,158 INFO L87 Difference]: Start difference. First operand has 347 states, 224 states have (on average 1.5535714285714286) internal successors, (348), 225 states have internal predecessors, (348), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 2 states have call successors, (120) [2024-11-18 19:51:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:26,228 INFO L93 Difference]: Finished difference Result 687 states and 1290 transitions. [2024-11-18 19:51:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:51:26,231 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 2 states have call successors, (120) Word has length 752 [2024-11-18 19:51:26,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:26,239 INFO L225 Difference]: With dead ends: 687 [2024-11-18 19:51:26,239 INFO L226 Difference]: Without dead ends: 343 [2024-11-18 19:51:26,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 753 GetRequests, 753 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:51:26,247 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:26,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-18 19:51:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2024-11-18 19:51:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 221 states have (on average 1.5429864253393666) internal successors, (341), 221 states have internal predecessors, (341), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-18 19:51:26,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 581 transitions. [2024-11-18 19:51:26,325 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 581 transitions. Word has length 752 [2024-11-18 19:51:26,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:26,327 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 581 transitions. [2024-11-18 19:51:26,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 2 states have call successors, (120) [2024-11-18 19:51:26,328 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 581 transitions. [2024-11-18 19:51:26,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2024-11-18 19:51:26,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:26,345 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:26,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:51:26,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:51:26,547 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:26,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:26,548 INFO L85 PathProgramCache]: Analyzing trace with hash 617856456, now seen corresponding path program 1 times [2024-11-18 19:51:26,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:26,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585488971] [2024-11-18 19:51:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:26,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:27,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:27,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585488971] [2024-11-18 19:51:27,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585488971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:27,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:27,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:51:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185579414] [2024-11-18 19:51:27,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:27,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:51:27,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:51:27,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:27,053 INFO L87 Difference]: Start difference. First operand 343 states and 581 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:27,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:27,170 INFO L93 Difference]: Finished difference Result 861 states and 1469 transitions. [2024-11-18 19:51:27,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:51:27,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 752 [2024-11-18 19:51:27,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:27,183 INFO L225 Difference]: With dead ends: 861 [2024-11-18 19:51:27,183 INFO L226 Difference]: Without dead ends: 521 [2024-11-18 19:51:27,185 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 19:51:27,186 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 301 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:27,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1138 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:51:27,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-18 19:51:27,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 518. [2024-11-18 19:51:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 375 states have (on average 1.6106666666666667) internal successors, (604), 376 states have internal predecessors, (604), 140 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (140), 139 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-18 19:51:27,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 884 transitions. [2024-11-18 19:51:27,266 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 884 transitions. Word has length 752 [2024-11-18 19:51:27,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:27,270 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 884 transitions. [2024-11-18 19:51:27,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:27,270 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 884 transitions. [2024-11-18 19:51:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2024-11-18 19:51:27,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:27,277 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:27,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:51:27,278 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:27,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:27,278 INFO L85 PathProgramCache]: Analyzing trace with hash 694757254, now seen corresponding path program 1 times [2024-11-18 19:51:27,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:27,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722502210] [2024-11-18 19:51:27,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:27,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:27,609 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:27,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:27,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722502210] [2024-11-18 19:51:27,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722502210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:27,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:27,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:51:27,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314884187] [2024-11-18 19:51:27,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:27,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:51:27,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:27,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:51:27,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:27,618 INFO L87 Difference]: Start difference. First operand 518 states and 884 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:27,717 INFO L93 Difference]: Finished difference Result 1386 states and 2372 transitions. [2024-11-18 19:51:27,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:51:27,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 752 [2024-11-18 19:51:27,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:27,728 INFO L225 Difference]: With dead ends: 1386 [2024-11-18 19:51:27,728 INFO L226 Difference]: Without dead ends: 871 [2024-11-18 19:51:27,730 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 19:51:27,730 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 339 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:27,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1417 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:51:27,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-18 19:51:27,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 868. [2024-11-18 19:51:27,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 655 states have (on average 1.630534351145038) internal successors, (1068), 658 states have internal predecessors, (1068), 208 states have call successors, (208), 4 states have call predecessors, (208), 4 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-18 19:51:27,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1484 transitions. [2024-11-18 19:51:27,802 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1484 transitions. Word has length 752 [2024-11-18 19:51:27,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:27,803 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1484 transitions. [2024-11-18 19:51:27,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:27,805 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1484 transitions. [2024-11-18 19:51:27,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2024-11-18 19:51:27,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:27,810 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:27,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:51:27,811 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:27,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:27,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1691752252, now seen corresponding path program 1 times [2024-11-18 19:51:27,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:27,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216609673] [2024-11-18 19:51:27,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:27,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:28,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:28,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216609673] [2024-11-18 19:51:28,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216609673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:28,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:28,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:51:28,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261590744] [2024-11-18 19:51:28,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:28,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:51:28,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:28,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:51:28,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:28,067 INFO L87 Difference]: Start difference. First operand 868 states and 1484 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:28,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:28,138 INFO L93 Difference]: Finished difference Result 1740 states and 2970 transitions. [2024-11-18 19:51:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:51:28,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 752 [2024-11-18 19:51:28,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:28,145 INFO L225 Difference]: With dead ends: 1740 [2024-11-18 19:51:28,145 INFO L226 Difference]: Without dead ends: 875 [2024-11-18 19:51:28,147 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 19:51:28,148 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 294 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:28,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1176 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:28,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-18 19:51:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 700. [2024-11-18 19:51:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 556 states have (on average 1.6816546762589928) internal successors, (935), 557 states have internal predecessors, (935), 140 states have call successors, (140), 3 states have call predecessors, (140), 3 states have return successors, (140), 139 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-18 19:51:28,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1215 transitions. [2024-11-18 19:51:28,183 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1215 transitions. Word has length 752 [2024-11-18 19:51:28,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:28,184 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1215 transitions. [2024-11-18 19:51:28,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:28,184 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1215 transitions. [2024-11-18 19:51:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2024-11-18 19:51:28,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:28,192 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:28,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:51:28,193 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:28,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:28,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1785566594, now seen corresponding path program 1 times [2024-11-18 19:51:28,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:28,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756435257] [2024-11-18 19:51:28,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:28,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:29,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:29,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756435257] [2024-11-18 19:51:29,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756435257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:29,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:29,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:51:29,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147443964] [2024-11-18 19:51:29,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:29,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:51:29,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:29,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:51:29,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:29,066 INFO L87 Difference]: Start difference. First operand 700 states and 1215 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:29,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:29,619 INFO L93 Difference]: Finished difference Result 2132 states and 3692 transitions. [2024-11-18 19:51:29,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:51:29,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 752 [2024-11-18 19:51:29,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:29,628 INFO L225 Difference]: With dead ends: 2132 [2024-11-18 19:51:29,628 INFO L226 Difference]: Without dead ends: 1435 [2024-11-18 19:51:29,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 19:51:29,632 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 541 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:29,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 2096 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:51:29,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2024-11-18 19:51:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1395. [2024-11-18 19:51:29,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1108 states have (on average 1.6823104693140793) internal successors, (1864), 1110 states have internal predecessors, (1864), 280 states have call successors, (280), 6 states have call predecessors, (280), 6 states have return successors, (280), 278 states have call predecessors, (280), 280 states have call successors, (280) [2024-11-18 19:51:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 2424 transitions. [2024-11-18 19:51:29,704 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 2424 transitions. Word has length 752 [2024-11-18 19:51:29,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:29,705 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 2424 transitions. [2024-11-18 19:51:29,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:29,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 2424 transitions. [2024-11-18 19:51:29,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2024-11-18 19:51:29,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:29,710 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:29,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:51:29,711 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:29,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:29,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1994972242, now seen corresponding path program 1 times [2024-11-18 19:51:29,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:29,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889481533] [2024-11-18 19:51:29,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:29,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:30,278 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:30,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:30,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889481533] [2024-11-18 19:51:30,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889481533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:30,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:30,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:51:30,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462910033] [2024-11-18 19:51:30,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:30,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:51:30,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:30,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:51:30,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:30,284 INFO L87 Difference]: Start difference. First operand 1395 states and 2424 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:30,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:30,392 INFO L93 Difference]: Finished difference Result 4179 states and 7266 transitions. [2024-11-18 19:51:30,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:51:30,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 753 [2024-11-18 19:51:30,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:30,406 INFO L225 Difference]: With dead ends: 4179 [2024-11-18 19:51:30,406 INFO L226 Difference]: Without dead ends: 2787 [2024-11-18 19:51:30,411 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 19:51:30,413 INFO L432 NwaCegarLoop]: 678 mSDtfsCounter, 343 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:30,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1247 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:30,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2024-11-18 19:51:30,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2785. [2024-11-18 19:51:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2212 states have (on average 1.6763110307414104) internal successors, (3708), 2216 states have internal predecessors, (3708), 560 states have call successors, (560), 12 states have call predecessors, (560), 12 states have return successors, (560), 556 states have call predecessors, (560), 560 states have call successors, (560) [2024-11-18 19:51:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4828 transitions. [2024-11-18 19:51:30,561 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4828 transitions. Word has length 753 [2024-11-18 19:51:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:30,562 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4828 transitions. [2024-11-18 19:51:30,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4828 transitions. [2024-11-18 19:51:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-11-18 19:51:30,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:30,568 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:30,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:51:30,568 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:30,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:30,569 INFO L85 PathProgramCache]: Analyzing trace with hash -530633936, now seen corresponding path program 1 times [2024-11-18 19:51:30,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:30,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369881062] [2024-11-18 19:51:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:30,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:31,058 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:31,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:31,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369881062] [2024-11-18 19:51:31,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369881062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:31,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:31,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:51:31,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398596990] [2024-11-18 19:51:31,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:31,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:51:31,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:31,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:51:31,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:31,061 INFO L87 Difference]: Start difference. First operand 2785 states and 4828 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:31,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:31,869 INFO L93 Difference]: Finished difference Result 10427 states and 18135 transitions. [2024-11-18 19:51:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:51:31,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 754 [2024-11-18 19:51:31,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:31,906 INFO L225 Difference]: With dead ends: 10427 [2024-11-18 19:51:31,906 INFO L226 Difference]: Without dead ends: 7645 [2024-11-18 19:51:31,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:31,919 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 849 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:31,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 1858 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:51:31,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2024-11-18 19:51:32,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 7637. [2024-11-18 19:51:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7637 states, 6284 states have (on average 1.6906429026098027) internal successors, (10624), 6300 states have internal predecessors, (10624), 1320 states have call successors, (1320), 32 states have call predecessors, (1320), 32 states have return successors, (1320), 1304 states have call predecessors, (1320), 1320 states have call successors, (1320) [2024-11-18 19:51:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7637 states to 7637 states and 13264 transitions. [2024-11-18 19:51:32,443 INFO L78 Accepts]: Start accepts. Automaton has 7637 states and 13264 transitions. Word has length 754 [2024-11-18 19:51:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:32,444 INFO L471 AbstractCegarLoop]: Abstraction has 7637 states and 13264 transitions. [2024-11-18 19:51:32,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:32,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7637 states and 13264 transitions. [2024-11-18 19:51:32,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-11-18 19:51:32,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:32,452 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:32,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:51:32,452 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:32,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:32,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1916629968, now seen corresponding path program 1 times [2024-11-18 19:51:32,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:32,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906064086] [2024-11-18 19:51:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:32,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:33,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:33,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906064086] [2024-11-18 19:51:33,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906064086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:33,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:33,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:51:33,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155115368] [2024-11-18 19:51:33,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:33,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:51:33,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:33,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:51:33,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:33,054 INFO L87 Difference]: Start difference. First operand 7637 states and 13264 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:33,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:33,423 INFO L93 Difference]: Finished difference Result 22905 states and 39786 transitions. [2024-11-18 19:51:33,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:51:33,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 754 [2024-11-18 19:51:33,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:33,506 INFO L225 Difference]: With dead ends: 22905 [2024-11-18 19:51:33,506 INFO L226 Difference]: Without dead ends: 15271 [2024-11-18 19:51:33,536 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 19:51:33,536 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 357 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:33,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1155 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:33,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15271 states. [2024-11-18 19:51:34,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15271 to 15269. [2024-11-18 19:51:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15269 states, 12564 states have (on average 1.6870423432028017) internal successors, (21196), 12596 states have internal predecessors, (21196), 2640 states have call successors, (2640), 64 states have call predecessors, (2640), 64 states have return successors, (2640), 2608 states have call predecessors, (2640), 2640 states have call successors, (2640) [2024-11-18 19:51:34,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15269 states to 15269 states and 26476 transitions. [2024-11-18 19:51:34,463 INFO L78 Accepts]: Start accepts. Automaton has 15269 states and 26476 transitions. Word has length 754 [2024-11-18 19:51:34,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:34,464 INFO L471 AbstractCegarLoop]: Abstraction has 15269 states and 26476 transitions. [2024-11-18 19:51:34,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:34,467 INFO L276 IsEmpty]: Start isEmpty. Operand 15269 states and 26476 transitions. [2024-11-18 19:51:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-11-18 19:51:34,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:34,478 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:34,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:51:34,479 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:34,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:34,479 INFO L85 PathProgramCache]: Analyzing trace with hash -378289938, now seen corresponding path program 1 times [2024-11-18 19:51:34,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:34,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514885566] [2024-11-18 19:51:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:34,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:35,001 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:35,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:35,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514885566] [2024-11-18 19:51:35,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514885566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:35,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:35,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:35,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549517938] [2024-11-18 19:51:35,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:35,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:35,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:35,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:35,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:35,006 INFO L87 Difference]: Start difference. First operand 15269 states and 26476 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:36,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:36,760 INFO L93 Difference]: Finished difference Result 47315 states and 81583 transitions. [2024-11-18 19:51:36,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:36,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 754 [2024-11-18 19:51:36,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:36,867 INFO L225 Difference]: With dead ends: 47315 [2024-11-18 19:51:36,868 INFO L226 Difference]: Without dead ends: 32049 [2024-11-18 19:51:37,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:37,127 INFO L432 NwaCegarLoop]: 1152 mSDtfsCounter, 614 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:37,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 2582 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:51:37,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32049 states. [2024-11-18 19:51:38,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32049 to 17405. [2024-11-18 19:51:38,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17405 states, 14316 states have (on average 1.6499022073204805) internal successors, (23620), 14396 states have internal predecessors, (23620), 2976 states have call successors, (2976), 112 states have call predecessors, (2976), 112 states have return successors, (2976), 2896 states have call predecessors, (2976), 2976 states have call successors, (2976) [2024-11-18 19:51:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17405 states to 17405 states and 29572 transitions. [2024-11-18 19:51:38,700 INFO L78 Accepts]: Start accepts. Automaton has 17405 states and 29572 transitions. Word has length 754 [2024-11-18 19:51:38,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:38,701 INFO L471 AbstractCegarLoop]: Abstraction has 17405 states and 29572 transitions. [2024-11-18 19:51:38,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:38,702 INFO L276 IsEmpty]: Start isEmpty. Operand 17405 states and 29572 transitions. [2024-11-18 19:51:38,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2024-11-18 19:51:38,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:38,713 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:38,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:51:38,713 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:38,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:38,714 INFO L85 PathProgramCache]: Analyzing trace with hash -965095952, now seen corresponding path program 1 times [2024-11-18 19:51:38,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:38,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626059349] [2024-11-18 19:51:38,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:38,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:40,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626059349] [2024-11-18 19:51:40,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626059349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:40,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:40,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:40,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924968886] [2024-11-18 19:51:40,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:40,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:40,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:40,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:40,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:40,490 INFO L87 Difference]: Start difference. First operand 17405 states and 29572 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:43,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:43,280 INFO L93 Difference]: Finished difference Result 53439 states and 89595 transitions. [2024-11-18 19:51:43,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:43,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 754 [2024-11-18 19:51:43,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:43,404 INFO L225 Difference]: With dead ends: 53439 [2024-11-18 19:51:43,405 INFO L226 Difference]: Without dead ends: 36037 [2024-11-18 19:51:43,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:43,448 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 769 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:43,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1945 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 19:51:43,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36037 states. [2024-11-18 19:51:46,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36037 to 35969. [2024-11-18 19:51:46,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35969 states, 28240 states have (on average 1.5929178470254957) internal successors, (44984), 28448 states have internal predecessors, (44984), 7416 states have call successors, (7416), 312 states have call predecessors, (7416), 312 states have return successors, (7416), 7208 states have call predecessors, (7416), 7416 states have call successors, (7416) [2024-11-18 19:51:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35969 states to 35969 states and 59816 transitions. [2024-11-18 19:51:46,328 INFO L78 Accepts]: Start accepts. Automaton has 35969 states and 59816 transitions. Word has length 754 [2024-11-18 19:51:46,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:46,329 INFO L471 AbstractCegarLoop]: Abstraction has 35969 states and 59816 transitions. [2024-11-18 19:51:46,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:46,329 INFO L276 IsEmpty]: Start isEmpty. Operand 35969 states and 59816 transitions. [2024-11-18 19:51:46,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2024-11-18 19:51:46,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:46,346 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:46,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:51:46,346 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:46,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:46,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1377676119, now seen corresponding path program 1 times [2024-11-18 19:51:46,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:46,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005629778] [2024-11-18 19:51:46,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:46,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:47,507 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:51:47,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:47,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005629778] [2024-11-18 19:51:47,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005629778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:47,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:47,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:47,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711803427] [2024-11-18 19:51:47,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:47,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:47,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:47,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:47,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:47,511 INFO L87 Difference]: Start difference. First operand 35969 states and 59816 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:51:53,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:53,024 INFO L93 Difference]: Finished difference Result 133931 states and 221579 transitions. [2024-11-18 19:51:53,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:53,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 755 [2024-11-18 19:51:53,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:53,657 INFO L225 Difference]: With dead ends: 133931 [2024-11-18 19:51:53,657 INFO L226 Difference]: Without dead ends: 97965 [2024-11-18 19:51:53,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:53,757 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 1265 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:53,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 1323 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 19:51:53,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97965 states. [2024-11-18 19:51:59,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97965 to 70309. [2024-11-18 19:51:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70309 states, 55652 states have (on average 1.5988643714511608) internal successors, (88980), 56100 states have internal predecessors, (88980), 14032 states have call successors, (14032), 624 states have call predecessors, (14032), 624 states have return successors, (14032), 13584 states have call predecessors, (14032), 14032 states have call successors, (14032) [2024-11-18 19:51:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70309 states to 70309 states and 117044 transitions. [2024-11-18 19:52:00,087 INFO L78 Accepts]: Start accepts. Automaton has 70309 states and 117044 transitions. Word has length 755 [2024-11-18 19:52:00,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:00,088 INFO L471 AbstractCegarLoop]: Abstraction has 70309 states and 117044 transitions. [2024-11-18 19:52:00,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:52:00,089 INFO L276 IsEmpty]: Start isEmpty. Operand 70309 states and 117044 transitions. [2024-11-18 19:52:00,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2024-11-18 19:52:00,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:00,120 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:00,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:52:00,121 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:00,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:00,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1112142637, now seen corresponding path program 1 times [2024-11-18 19:52:00,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:00,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313841119] [2024-11-18 19:52:00,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:00,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:52:01,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:01,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313841119] [2024-11-18 19:52:01,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313841119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:01,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:01,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:52:01,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329851843] [2024-11-18 19:52:01,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:01,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:52:01,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:01,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:52:01,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:52:01,323 INFO L87 Difference]: Start difference. First operand 70309 states and 117044 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:52:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:09,053 INFO L93 Difference]: Finished difference Result 223763 states and 370087 transitions. [2024-11-18 19:52:09,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:52:09,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 755 [2024-11-18 19:52:09,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:09,692 INFO L225 Difference]: With dead ends: 223763 [2024-11-18 19:52:09,693 INFO L226 Difference]: Without dead ends: 153457 [2024-11-18 19:52:09,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:52:09,867 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 559 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:09,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 1761 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:52:09,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153457 states.