./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-68.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-68.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 6356f25af9bb924bb9550dc7ee13ccad0d46305c0140f2958a98a1290334276d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:46:20,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:46:20,557 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:46:20,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:46:20,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:46:20,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:46:20,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:46:20,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:46:20,583 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:46:20,585 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:46:20,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:46:20,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:46:20,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:46:20,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:46:20,587 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:46:20,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:46:20,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:46:20,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:46:20,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:46:20,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:46:20,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:46:20,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:46:20,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:46:20,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:46:20,591 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:46:20,592 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:46:20,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:46:20,592 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:46:20,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:46:20,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:46:20,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:46:20,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:46:20,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:46:20,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:46:20,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:46:20,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:46:20,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:46:20,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:46:20,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:46:20,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:46:20,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:46:20,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:46:20,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6356f25af9bb924bb9550dc7ee13ccad0d46305c0140f2958a98a1290334276d [2024-11-22 07:46:20,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:46:20,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:46:20,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:46:20,837 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:46:20,837 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:46:20,838 INFO L431 ainManager$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-68.i [2024-11-22 07:46:22,148 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:46:22,344 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:46:22,344 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-68.i [2024-11-22 07:46:22,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e93d4f54/0e638bbfdaf645e981d0ee0e15f67d41/FLAG916335b76 [2024-11-22 07:46:22,380 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e93d4f54/0e638bbfdaf645e981d0ee0e15f67d41 [2024-11-22 07:46:22,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:46:22,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:46:22,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:46:22,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:46:22,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:46:22,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:22,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4314c7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22, skipping insertion in model container [2024-11-22 07:46:22,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:22,445 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:46:22,609 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-68.i[916,929] [2024-11-22 07:46:22,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:46:22,780 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:46:22,790 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-68.i[916,929] [2024-11-22 07:46:22,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:46:22,875 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:46:22,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22 WrapperNode [2024-11-22 07:46:22,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:46:22,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:46:22,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:46:22,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:46:22,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:22,898 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:22,965 INFO L138 Inliner]: procedures = 26, calls = 112, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 819 [2024-11-22 07:46:22,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:46:22,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:46:22,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:46:22,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:46:22,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:22,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:22,989 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:23,071 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 07:46:23,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:23,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:23,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:23,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:23,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:23,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:23,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:46:23,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:46:23,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:46:23,145 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:46:23,146 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (1/1) ... [2024-11-22 07:46:23,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:46:23,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:46:23,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 07:46:23,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 07:46:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:46:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:46:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:46:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:46:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:46:23,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:46:23,318 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:46:23,319 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:46:24,280 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-11-22 07:46:24,280 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:46:24,304 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:46:24,307 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:46:24,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:46:24 BoogieIcfgContainer [2024-11-22 07:46:24,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:46:24,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:46:24,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:46:24,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:46:24,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:46:22" (1/3) ... [2024-11-22 07:46:24,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f868ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:46:24, skipping insertion in model container [2024-11-22 07:46:24,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:46:22" (2/3) ... [2024-11-22 07:46:24,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f868ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:46:24, skipping insertion in model container [2024-11-22 07:46:24,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:46:24" (3/3) ... [2024-11-22 07:46:24,314 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-68.i [2024-11-22 07:46:24,326 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:46:24,326 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:46:24,389 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:46:24,394 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;@68eff80b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:46:24,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:46:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 334 states, 232 states have (on average 1.5905172413793103) internal successors, (369), 233 states have internal predecessors, (369), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-22 07:46:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-22 07:46:24,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:24,429 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:24,429 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:24,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:24,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1002179095, now seen corresponding path program 1 times [2024-11-22 07:46:24,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:24,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803971874] [2024-11-22 07:46:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:24,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:24,991 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 19208 trivial. 0 not checked. [2024-11-22 07:46:24,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:24,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803971874] [2024-11-22 07:46:24,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803971874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:46:24,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168650031] [2024-11-22 07:46:24,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:24,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:46:24,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:46:24,995 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) [2024-11-22 07:46:24,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 07:46:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:25,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 1502 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:46:25,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:46:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 19208 trivial. 0 not checked. [2024-11-22 07:46:25,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:46:25,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168650031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:25,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:46:25,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:46:25,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237862087] [2024-11-22 07:46:25,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:25,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:46:25,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:25,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:46:25,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:46:25,414 INFO L87 Difference]: Start difference. First operand has 334 states, 232 states have (on average 1.5905172413793103) internal successors, (369), 233 states have internal predecessors, (369), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) [2024-11-22 07:46:25,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:25,479 INFO L93 Difference]: Finished difference Result 659 states and 1225 transitions. [2024-11-22 07:46:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:46:25,481 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) Word has length 642 [2024-11-22 07:46:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:25,491 INFO L225 Difference]: With dead ends: 659 [2024-11-22 07:46:25,491 INFO L226 Difference]: Without dead ends: 328 [2024-11-22 07:46:25,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 643 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:46:25,498 INFO L432 NwaCegarLoop]: 554 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, 554 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 [2024-11-22 07:46:25,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:46:25,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-22 07:46:25,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2024-11-22 07:46:25,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 227 states have (on average 1.5682819383259912) internal successors, (356), 227 states have internal predecessors, (356), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-22 07:46:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 554 transitions. [2024-11-22 07:46:25,577 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 554 transitions. Word has length 642 [2024-11-22 07:46:25,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:25,582 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 554 transitions. [2024-11-22 07:46:25,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) [2024-11-22 07:46:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 554 transitions. [2024-11-22 07:46:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-22 07:46:25,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:25,601 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:25,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 07:46:25,806 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 [2024-11-22 07:46:25,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:25,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:25,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1482391667, now seen corresponding path program 1 times [2024-11-22 07:46:25,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:25,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423496287] [2024-11-22 07:46:25,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:25,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:26,193 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:26,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:26,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423496287] [2024-11-22 07:46:26,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423496287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:26,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:26,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:46:26,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885025036] [2024-11-22 07:46:26,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:26,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:46:26,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:26,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:46:26,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:26,199 INFO L87 Difference]: Start difference. First operand 328 states and 554 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:26,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:26,268 INFO L93 Difference]: Finished difference Result 859 states and 1451 transitions. [2024-11-22 07:46:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:46:26,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-22 07:46:26,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:26,276 INFO L225 Difference]: With dead ends: 859 [2024-11-22 07:46:26,276 INFO L226 Difference]: Without dead ends: 534 [2024-11-22 07:46:26,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:26,279 INFO L432 NwaCegarLoop]: 664 mSDtfsCounter, 331 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1195 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 [2024-11-22 07:46:26,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1195 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:46:26,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-22 07:46:26,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 531. [2024-11-22 07:46:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 387 states have (on average 1.5891472868217054) internal successors, (615), 388 states have internal predecessors, (615), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 140 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-22 07:46:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 897 transitions. [2024-11-22 07:46:26,350 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 897 transitions. Word has length 642 [2024-11-22 07:46:26,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:26,353 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 897 transitions. [2024-11-22 07:46:26,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:26,354 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 897 transitions. [2024-11-22 07:46:26,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-22 07:46:26,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:26,366 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:26,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:46:26,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:26,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:26,367 INFO L85 PathProgramCache]: Analyzing trace with hash 901533071, now seen corresponding path program 1 times [2024-11-22 07:46:26,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:26,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278719319] [2024-11-22 07:46:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:26,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:26,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:26,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278719319] [2024-11-22 07:46:26,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278719319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:26,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:26,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:46:26,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739542223] [2024-11-22 07:46:26,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:26,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:46:26,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:26,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:46:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:26,744 INFO L87 Difference]: Start difference. First operand 531 states and 897 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:26,807 INFO L93 Difference]: Finished difference Result 1380 states and 2318 transitions. [2024-11-22 07:46:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:46:26,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-22 07:46:26,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:26,818 INFO L225 Difference]: With dead ends: 1380 [2024-11-22 07:46:26,818 INFO L226 Difference]: Without dead ends: 852 [2024-11-22 07:46:26,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:26,821 INFO L432 NwaCegarLoop]: 551 mSDtfsCounter, 237 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1090 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 [2024-11-22 07:46:26,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1090 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:46:26,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-11-22 07:46:26,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 848. [2024-11-22 07:46:26,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 622 states have (on average 1.5707395498392283) internal successors, (977), 625 states have internal predecessors, (977), 221 states have call successors, (221), 4 states have call predecessors, (221), 4 states have return successors, (221), 218 states have call predecessors, (221), 221 states have call successors, (221) [2024-11-22 07:46:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1419 transitions. [2024-11-22 07:46:26,893 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1419 transitions. Word has length 642 [2024-11-22 07:46:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:26,894 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1419 transitions. [2024-11-22 07:46:26,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1419 transitions. [2024-11-22 07:46:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-22 07:46:26,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:26,898 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:26,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:46:26,899 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:26,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:26,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1470206191, now seen corresponding path program 1 times [2024-11-22 07:46:26,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:26,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348172625] [2024-11-22 07:46:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:27,176 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:27,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:27,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348172625] [2024-11-22 07:46:27,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348172625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:27,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:27,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:46:27,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37830938] [2024-11-22 07:46:27,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:27,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:46:27,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:27,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:46:27,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:27,180 INFO L87 Difference]: Start difference. First operand 848 states and 1419 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:27,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:27,259 INFO L93 Difference]: Finished difference Result 2484 states and 4155 transitions. [2024-11-22 07:46:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:46:27,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-22 07:46:27,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:27,270 INFO L225 Difference]: With dead ends: 2484 [2024-11-22 07:46:27,270 INFO L226 Difference]: Without dead ends: 1639 [2024-11-22 07:46:27,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:27,274 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 461 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:46:27,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1425 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:46:27,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2024-11-22 07:46:27,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1112. [2024-11-22 07:46:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 886 states have (on average 1.6286681715575622) internal successors, (1443), 889 states have internal predecessors, (1443), 221 states have call successors, (221), 4 states have call predecessors, (221), 4 states have return successors, (221), 218 states have call predecessors, (221), 221 states have call successors, (221) [2024-11-22 07:46:27,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1885 transitions. [2024-11-22 07:46:27,387 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1885 transitions. Word has length 642 [2024-11-22 07:46:27,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:27,389 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1885 transitions. [2024-11-22 07:46:27,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:27,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1885 transitions. [2024-11-22 07:46:27,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-22 07:46:27,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:27,395 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:27,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:46:27,397 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:27,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:27,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1251351473, now seen corresponding path program 1 times [2024-11-22 07:46:27,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:27,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916700395] [2024-11-22 07:46:27,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:27,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:27,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:27,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916700395] [2024-11-22 07:46:27,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916700395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:27,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:27,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:46:27,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014118990] [2024-11-22 07:46:27,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:27,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:46:27,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:27,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:46:27,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:46:27,795 INFO L87 Difference]: Start difference. First operand 1112 states and 1885 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:28,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:28,264 INFO L93 Difference]: Finished difference Result 3330 states and 5649 transitions. [2024-11-22 07:46:28,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:46:28,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-22 07:46:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:28,276 INFO L225 Difference]: With dead ends: 3330 [2024-11-22 07:46:28,276 INFO L226 Difference]: Without dead ends: 2221 [2024-11-22 07:46:28,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:46:28,280 INFO L432 NwaCegarLoop]: 727 mSDtfsCounter, 546 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:46:28,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1782 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 07:46:28,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2024-11-22 07:46:28,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2219. [2024-11-22 07:46:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1768 states have (on average 1.6255656108597285) internal successors, (2874), 1774 states have internal predecessors, (2874), 442 states have call successors, (442), 8 states have call predecessors, (442), 8 states have return successors, (442), 436 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-22 07:46:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3758 transitions. [2024-11-22 07:46:28,399 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3758 transitions. Word has length 642 [2024-11-22 07:46:28,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:28,400 INFO L471 AbstractCegarLoop]: Abstraction has 2219 states and 3758 transitions. [2024-11-22 07:46:28,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:28,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3758 transitions. [2024-11-22 07:46:28,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-22 07:46:28,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:28,429 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:28,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:46:28,429 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:28,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:28,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1910882995, now seen corresponding path program 1 times [2024-11-22 07:46:28,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:28,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321258384] [2024-11-22 07:46:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:28,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:28,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:28,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321258384] [2024-11-22 07:46:28,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321258384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:28,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:28,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:46:28,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838305708] [2024-11-22 07:46:28,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:28,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:46:28,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:28,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:46:28,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:46:28,942 INFO L87 Difference]: Start difference. First operand 2219 states and 3758 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:29,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:29,267 INFO L93 Difference]: Finished difference Result 4435 states and 7513 transitions. [2024-11-22 07:46:29,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:46:29,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-22 07:46:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:29,278 INFO L225 Difference]: With dead ends: 4435 [2024-11-22 07:46:29,278 INFO L226 Difference]: Without dead ends: 2219 [2024-11-22 07:46:29,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:46:29,284 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 546 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:46:29,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 884 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 07:46:29,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2024-11-22 07:46:29,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2024-11-22 07:46:29,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1768 states have (on average 1.6210407239819005) internal successors, (2866), 1774 states have internal predecessors, (2866), 442 states have call successors, (442), 8 states have call predecessors, (442), 8 states have return successors, (442), 436 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-22 07:46:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3750 transitions. [2024-11-22 07:46:29,399 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3750 transitions. Word has length 642 [2024-11-22 07:46:29,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:29,400 INFO L471 AbstractCegarLoop]: Abstraction has 2219 states and 3750 transitions. [2024-11-22 07:46:29,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:29,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3750 transitions. [2024-11-22 07:46:29,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-22 07:46:29,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:29,405 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:29,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:46:29,406 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:29,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:29,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1273670384, now seen corresponding path program 1 times [2024-11-22 07:46:29,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:29,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249306364] [2024-11-22 07:46:29,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:29,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:29,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:29,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249306364] [2024-11-22 07:46:29,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249306364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:29,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:29,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:46:29,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654399629] [2024-11-22 07:46:29,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:29,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:46:29,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:29,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:46:29,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:29,808 INFO L87 Difference]: Start difference. First operand 2219 states and 3750 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:29,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:29,964 INFO L93 Difference]: Finished difference Result 6651 states and 11244 transitions. [2024-11-22 07:46:29,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:46:29,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 643 [2024-11-22 07:46:29,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:29,985 INFO L225 Difference]: With dead ends: 6651 [2024-11-22 07:46:29,985 INFO L226 Difference]: Without dead ends: 4435 [2024-11-22 07:46:29,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:29,992 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 359 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:46:29,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1233 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:46:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2024-11-22 07:46:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4417. [2024-11-22 07:46:30,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 3516 states have (on average 1.6154721274175199) internal successors, (5680), 3528 states have internal predecessors, (5680), 884 states have call successors, (884), 16 states have call predecessors, (884), 16 states have return successors, (884), 872 states have call predecessors, (884), 884 states have call successors, (884) [2024-11-22 07:46:30,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 7448 transitions. [2024-11-22 07:46:30,328 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 7448 transitions. Word has length 643 [2024-11-22 07:46:30,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:30,329 INFO L471 AbstractCegarLoop]: Abstraction has 4417 states and 7448 transitions. [2024-11-22 07:46:30,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:30,330 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 7448 transitions. [2024-11-22 07:46:30,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-22 07:46:30,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:30,340 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:30,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:46:30,340 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:30,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:30,341 INFO L85 PathProgramCache]: Analyzing trace with hash 254209221, now seen corresponding path program 1 times [2024-11-22 07:46:30,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:30,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576209299] [2024-11-22 07:46:30,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:30,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:30,985 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:30,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:30,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576209299] [2024-11-22 07:46:30,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576209299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:30,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:30,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:46:30,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705737137] [2024-11-22 07:46:30,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:30,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:46:30,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:30,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:46:30,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:30,987 INFO L87 Difference]: Start difference. First operand 4417 states and 7448 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:31,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:31,246 INFO L93 Difference]: Finished difference Result 13245 states and 22338 transitions. [2024-11-22 07:46:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:46:31,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-22 07:46:31,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:31,303 INFO L225 Difference]: With dead ends: 13245 [2024-11-22 07:46:31,303 INFO L226 Difference]: Without dead ends: 8831 [2024-11-22 07:46:31,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:31,321 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 333 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:46:31,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1099 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:46:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2024-11-22 07:46:31,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 8829. [2024-11-22 07:46:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 7028 states have (on average 1.6112692088787706) internal successors, (11324), 7052 states have internal predecessors, (11324), 1768 states have call successors, (1768), 32 states have call predecessors, (1768), 32 states have return successors, (1768), 1744 states have call predecessors, (1768), 1768 states have call successors, (1768) [2024-11-22 07:46:31,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 14860 transitions. [2024-11-22 07:46:31,916 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 14860 transitions. Word has length 644 [2024-11-22 07:46:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:31,917 INFO L471 AbstractCegarLoop]: Abstraction has 8829 states and 14860 transitions. [2024-11-22 07:46:31,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:31,917 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 14860 transitions. [2024-11-22 07:46:31,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-22 07:46:31,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:31,928 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:31,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:46:31,928 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:31,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:31,929 INFO L85 PathProgramCache]: Analyzing trace with hash 955809095, now seen corresponding path program 1 times [2024-11-22 07:46:31,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:31,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979419757] [2024-11-22 07:46:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:31,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:32,581 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:32,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:32,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979419757] [2024-11-22 07:46:32,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979419757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:32,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:32,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:46:32,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235350960] [2024-11-22 07:46:32,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:32,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:46:32,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:32,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:46:32,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:32,584 INFO L87 Difference]: Start difference. First operand 8829 states and 14860 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:33,286 INFO L93 Difference]: Finished difference Result 26481 states and 44574 transitions. [2024-11-22 07:46:33,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:46:33,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-22 07:46:33,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:33,371 INFO L225 Difference]: With dead ends: 26481 [2024-11-22 07:46:33,371 INFO L226 Difference]: Without dead ends: 17655 [2024-11-22 07:46:33,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:46:33,402 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 326 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:46:33,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1098 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:46:33,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17655 states. [2024-11-22 07:46:34,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17655 to 17645. [2024-11-22 07:46:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17645 states, 14044 states have (on average 1.606664767872401) internal successors, (22564), 14092 states have internal predecessors, (22564), 3536 states have call successors, (3536), 64 states have call predecessors, (3536), 64 states have return successors, (3536), 3488 states have call predecessors, (3536), 3536 states have call successors, (3536) [2024-11-22 07:46:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17645 states to 17645 states and 29636 transitions. [2024-11-22 07:46:34,533 INFO L78 Accepts]: Start accepts. Automaton has 17645 states and 29636 transitions. Word has length 644 [2024-11-22 07:46:34,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:34,534 INFO L471 AbstractCegarLoop]: Abstraction has 17645 states and 29636 transitions. [2024-11-22 07:46:34,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:34,535 INFO L276 IsEmpty]: Start isEmpty. Operand 17645 states and 29636 transitions. [2024-11-22 07:46:34,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-22 07:46:34,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:34,552 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:34,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:46:34,552 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:34,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:34,553 INFO L85 PathProgramCache]: Analyzing trace with hash 821795589, now seen corresponding path program 1 times [2024-11-22 07:46:34,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:34,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569726724] [2024-11-22 07:46:34,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:34,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:35,266 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:35,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:35,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569726724] [2024-11-22 07:46:35,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569726724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:35,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:35,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:46:35,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751610370] [2024-11-22 07:46:35,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:35,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:46:35,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:35,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:46:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:46:35,271 INFO L87 Difference]: Start difference. First operand 17645 states and 29636 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:36,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:36,510 INFO L93 Difference]: Finished difference Result 37081 states and 61702 transitions. [2024-11-22 07:46:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:46:36,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-22 07:46:36,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:36,599 INFO L225 Difference]: With dead ends: 37081 [2024-11-22 07:46:36,599 INFO L226 Difference]: Without dead ends: 19439 [2024-11-22 07:46:36,662 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 [2024-11-22 07:46:36,663 INFO L432 NwaCegarLoop]: 554 mSDtfsCounter, 575 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:46:36,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 884 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 07:46:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19439 states. [2024-11-22 07:46:37,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19439 to 19373. [2024-11-22 07:46:37,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19373 states, 15452 states have (on average 1.5762360859435671) internal successors, (24356), 15564 states have internal predecessors, (24356), 3792 states have call successors, (3792), 128 states have call predecessors, (3792), 128 states have return successors, (3792), 3680 states have call predecessors, (3792), 3792 states have call successors, (3792) [2024-11-22 07:46:38,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19373 states to 19373 states and 31940 transitions. [2024-11-22 07:46:38,036 INFO L78 Accepts]: Start accepts. Automaton has 19373 states and 31940 transitions. Word has length 644 [2024-11-22 07:46:38,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:38,037 INFO L471 AbstractCegarLoop]: Abstraction has 19373 states and 31940 transitions. [2024-11-22 07:46:38,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 19373 states and 31940 transitions. [2024-11-22 07:46:38,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-22 07:46:38,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:38,053 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:38,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:46:38,054 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:38,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:38,055 INFO L85 PathProgramCache]: Analyzing trace with hash -953211773, now seen corresponding path program 1 times [2024-11-22 07:46:38,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:38,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903291742] [2024-11-22 07:46:38,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:38,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:38,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:38,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903291742] [2024-11-22 07:46:38,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903291742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:38,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:38,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:46:38,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163793134] [2024-11-22 07:46:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:38,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:46:38,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:38,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:46:38,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:46:38,960 INFO L87 Difference]: Start difference. First operand 19373 states and 31940 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:41,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:46:41,203 INFO L93 Difference]: Finished difference Result 83287 states and 134265 transitions. [2024-11-22 07:46:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 07:46:41,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-22 07:46:41,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:46:41,472 INFO L225 Difference]: With dead ends: 83287 [2024-11-22 07:46:41,472 INFO L226 Difference]: Without dead ends: 63917 [2024-11-22 07:46:41,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:46:41,562 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 1047 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:46:41,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 2885 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 07:46:41,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63917 states. [2024-11-22 07:46:44,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63917 to 58085. [2024-11-22 07:46:44,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58085 states, 47684 states have (on average 1.553141514973576) internal successors, (74060), 48164 states have internal predecessors, (74060), 9888 states have call successors, (9888), 512 states have call predecessors, (9888), 512 states have return successors, (9888), 9408 states have call predecessors, (9888), 9888 states have call successors, (9888) [2024-11-22 07:46:45,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58085 states to 58085 states and 93836 transitions. [2024-11-22 07:46:45,157 INFO L78 Accepts]: Start accepts. Automaton has 58085 states and 93836 transitions. Word has length 644 [2024-11-22 07:46:45,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:46:45,158 INFO L471 AbstractCegarLoop]: Abstraction has 58085 states and 93836 transitions. [2024-11-22 07:46:45,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-22 07:46:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 58085 states and 93836 transitions. [2024-11-22 07:46:45,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-22 07:46:45,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:46:45,209 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:46:45,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:46:45,209 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:46:45,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:46:45,210 INFO L85 PathProgramCache]: Analyzing trace with hash -891172159, now seen corresponding path program 1 times [2024-11-22 07:46:45,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:46:45,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594852419] [2024-11-22 07:46:45,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:46:45,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:46:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:46:51,126 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-22 07:46:51,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:46:51,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594852419] [2024-11-22 07:46:51,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594852419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:46:51,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:46:51,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 07:46:51,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059872374] [2024-11-22 07:46:51,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:46:51,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 07:46:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:46:51,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 07:46:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-22 07:46:51,129 INFO L87 Difference]: Start difference. First operand 58085 states and 93836 transitions. Second operand has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 14 states have internal predecessors, (152), 3 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 3 states have call predecessors, (99), 3 states have call successors, (99)