./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-29.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-250_file-29.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 2d1a08586e28489dc94d2285dea3402a5710056ff4819769698695dc05870e8f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:21:50,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:21:50,279 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:21:50,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:21:50,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:21:50,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:21:50,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:21:50,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:21:50,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:21:50,313 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:21:50,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:21:50,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:21:50,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:21:50,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:21:50,315 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:21:50,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:21:50,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:21:50,316 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:21:50,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:21:50,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:21:50,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:21:50,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:21:50,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:21:50,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:21:50,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:21:50,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:21:50,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:21:50,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:21:50,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:21:50,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:21:50,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:21:50,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:21:50,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:21:50,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:21:50,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:21:50,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:21:50,321 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:21:50,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:21:50,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:21:50,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:21:50,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:21:50,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:21:50,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d1a08586e28489dc94d2285dea3402a5710056ff4819769698695dc05870e8f [2024-11-22 07:21:50,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:21:50,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:21:50,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:21:50,574 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:21:50,575 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:21:50,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-29.i [2024-11-22 07:21:51,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:21:52,001 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:21:52,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-29.i [2024-11-22 07:21:52,017 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3745b4b/be165d8d57fc42858d86835414a59735/FLAGa6d6fe0a6 [2024-11-22 07:21:52,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3745b4b/be165d8d57fc42858d86835414a59735 [2024-11-22 07:21:52,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:21:52,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:21:52,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:21:52,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:21:52,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:21:52,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a53216a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52, skipping insertion in model container [2024-11-22 07:21:52,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:21:52,238 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-29.i[916,929] [2024-11-22 07:21:52,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:21:52,377 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:21:52,389 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-29.i[916,929] [2024-11-22 07:21:52,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:21:52,467 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:21:52,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52 WrapperNode [2024-11-22 07:21:52,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:21:52,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:21:52,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:21:52,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:21:52,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,542 INFO L138 Inliner]: procedures = 26, calls = 89, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 553 [2024-11-22 07:21:52,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:21:52,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:21:52,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:21:52,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:21:52,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,589 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 07:21:52,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:21:52,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:21:52,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:21:52,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:21:52,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (1/1) ... [2024-11-22 07:21:52,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:21:52,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:21:52,668 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 07:21:52,673 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 07:21:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:21:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:21:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:21:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:21:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:21:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:21:52,818 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:21:52,820 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:21:53,514 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-22 07:21:53,514 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:21:53,531 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:21:53,533 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:21:53,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:21:53 BoogieIcfgContainer [2024-11-22 07:21:53,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:21:53,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:21:53,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:21:53,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:21:53,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:21:52" (1/3) ... [2024-11-22 07:21:53,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68679373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:21:53, skipping insertion in model container [2024-11-22 07:21:53,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:21:52" (2/3) ... [2024-11-22 07:21:53,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68679373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:21:53, skipping insertion in model container [2024-11-22 07:21:53,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:21:53" (3/3) ... [2024-11-22 07:21:53,540 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-29.i [2024-11-22 07:21:53,552 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:21:53,552 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:21:53,609 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:21:53,613 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;@5f21bdf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:21:53,614 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:21:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 229 states, 150 states have (on average 1.5533333333333332) internal successors, (233), 151 states have internal predecessors, (233), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-22 07:21:53,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:21:53,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:21:53,647 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:53,648 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:21:53,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:21:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash 915346865, now seen corresponding path program 1 times [2024-11-22 07:21:53,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:21:53,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71174248] [2024-11-22 07:21:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:21:53,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:21:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:21:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2024-11-22 07:21:54,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:21:54,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71174248] [2024-11-22 07:21:54,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71174248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:21:54,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256305747] [2024-11-22 07:21:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:21:54,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:21:54,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:21:54,128 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 07:21:54,129 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 07:21:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:21:54,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:21:54,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:21:54,455 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2024-11-22 07:21:54,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:21:54,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256305747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:21:54,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:21:54,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:21:54,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315187060] [2024-11-22 07:21:54,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:21:54,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:21:54,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:21:54,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:21:54,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:21:54,490 INFO L87 Difference]: Start difference. First operand has 229 states, 150 states have (on average 1.5533333333333332) internal successors, (233), 151 states have internal predecessors, (233), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) Second operand has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-22 07:21:54,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:21:54,546 INFO L93 Difference]: Finished difference Result 451 states and 840 transitions. [2024-11-22 07:21:54,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:21:54,548 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) Word has length 471 [2024-11-22 07:21:54,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:21:54,558 INFO L225 Difference]: With dead ends: 451 [2024-11-22 07:21:54,558 INFO L226 Difference]: Without dead ends: 225 [2024-11-22 07:21:54,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 472 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 07:21:54,567 INFO L432 NwaCegarLoop]: 377 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, 377 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 07:21:54,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:21:54,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-22 07:21:54,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2024-11-22 07:21:54,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 147 states have (on average 1.530612244897959) internal successors, (225), 147 states have internal predecessors, (225), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-22 07:21:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 377 transitions. [2024-11-22 07:21:54,630 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 377 transitions. Word has length 471 [2024-11-22 07:21:54,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:21:54,631 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 377 transitions. [2024-11-22 07:21:54,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-22 07:21:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 377 transitions. [2024-11-22 07:21:54,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:21:54,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:21:54,643 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:54,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 07:21:54,843 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 07:21:54,844 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:21:54,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:21:54,845 INFO L85 PathProgramCache]: Analyzing trace with hash 84695165, now seen corresponding path program 1 times [2024-11-22 07:21:54,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:21:54,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958958739] [2024-11-22 07:21:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:21:54,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:21:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:21:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-22 07:21:55,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:21:55,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958958739] [2024-11-22 07:21:55,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958958739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:21:55,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:21:55,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:21:55,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155019136] [2024-11-22 07:21:55,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:21:55,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:21:55,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:21:55,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:21:55,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:21:55,141 INFO L87 Difference]: Start difference. First operand 225 states and 377 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:55,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:21:55,207 INFO L93 Difference]: Finished difference Result 579 states and 974 transitions. [2024-11-22 07:21:55,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:21:55,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 471 [2024-11-22 07:21:55,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:21:55,216 INFO L225 Difference]: With dead ends: 579 [2024-11-22 07:21:55,216 INFO L226 Difference]: Without dead ends: 357 [2024-11-22 07:21:55,217 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 07:21:55,217 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 229 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:21:55,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 814 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:21:55,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-22 07:21:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 354. [2024-11-22 07:21:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 245 states have (on average 1.5591836734693878) internal successors, (382), 246 states have internal predecessors, (382), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-22 07:21:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 594 transitions. [2024-11-22 07:21:55,263 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 594 transitions. Word has length 471 [2024-11-22 07:21:55,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:21:55,265 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 594 transitions. [2024-11-22 07:21:55,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:55,266 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 594 transitions. [2024-11-22 07:21:55,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:21:55,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:21:55,271 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:55,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:21:55,271 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:21:55,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:21:55,272 INFO L85 PathProgramCache]: Analyzing trace with hash 332841659, now seen corresponding path program 1 times [2024-11-22 07:21:55,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:21:55,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543680825] [2024-11-22 07:21:55,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:21:55,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:21:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:21:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-22 07:21:55,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:21:55,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543680825] [2024-11-22 07:21:55,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543680825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:21:55,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:21:55,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:21:55,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125025370] [2024-11-22 07:21:55,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:21:55,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:21:55,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:21:55,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:21:55,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:21:55,513 INFO L87 Difference]: Start difference. First operand 354 states and 594 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:55,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:21:55,564 INFO L93 Difference]: Finished difference Result 716 states and 1198 transitions. [2024-11-22 07:21:55,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:21:55,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 471 [2024-11-22 07:21:55,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:21:55,572 INFO L225 Difference]: With dead ends: 716 [2024-11-22 07:21:55,572 INFO L226 Difference]: Without dead ends: 365 [2024-11-22 07:21:55,573 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 07:21:55,574 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 195 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:21:55,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 816 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:21:55,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-22 07:21:55,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 296. [2024-11-22 07:21:55,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 217 states have (on average 1.5806451612903225) internal successors, (343), 217 states have internal predecessors, (343), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-22 07:21:55,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 495 transitions. [2024-11-22 07:21:55,599 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 495 transitions. Word has length 471 [2024-11-22 07:21:55,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:21:55,600 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 495 transitions. [2024-11-22 07:21:55,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:55,601 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 495 transitions. [2024-11-22 07:21:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:21:55,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:21:55,607 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:55,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:21:55,607 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:21:55,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:21:55,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1255506243, now seen corresponding path program 1 times [2024-11-22 07:21:55,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:21:55,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604455424] [2024-11-22 07:21:55,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:21:55,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:21:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:21:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-22 07:21:55,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:21:55,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604455424] [2024-11-22 07:21:55,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604455424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:21:55,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:21:55,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:21:55,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911914156] [2024-11-22 07:21:55,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:21:55,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:21:55,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:21:55,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:21:55,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:21:55,811 INFO L87 Difference]: Start difference. First operand 296 states and 495 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:55,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:21:55,848 INFO L93 Difference]: Finished difference Result 718 states and 1190 transitions. [2024-11-22 07:21:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:21:55,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 471 [2024-11-22 07:21:55,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:21:55,853 INFO L225 Difference]: With dead ends: 718 [2024-11-22 07:21:55,854 INFO L226 Difference]: Without dead ends: 425 [2024-11-22 07:21:55,855 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 07:21:55,855 INFO L432 NwaCegarLoop]: 524 mSDtfsCounter, 191 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:21:55,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 892 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:21:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-22 07:21:55,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 422. [2024-11-22 07:21:55,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 285 states have (on average 1.5087719298245614) internal successors, (430), 286 states have internal predecessors, (430), 132 states have call successors, (132), 4 states have call predecessors, (132), 4 states have return successors, (132), 131 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-22 07:21:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 694 transitions. [2024-11-22 07:21:55,878 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 694 transitions. Word has length 471 [2024-11-22 07:21:55,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:21:55,881 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 694 transitions. [2024-11-22 07:21:55,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:55,882 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 694 transitions. [2024-11-22 07:21:55,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:21:55,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:21:55,887 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:55,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:21:55,887 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:21:55,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:21:55,887 INFO L85 PathProgramCache]: Analyzing trace with hash 24357435, now seen corresponding path program 1 times [2024-11-22 07:21:55,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:21:55,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262531497] [2024-11-22 07:21:55,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:21:55,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:21:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:21:56,338 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-22 07:21:56,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:21:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262531497] [2024-11-22 07:21:56,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262531497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:21:56,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:21:56,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 07:21:56,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818008629] [2024-11-22 07:21:56,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:21:56,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 07:21:56,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:21:56,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 07:21:56,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:21:56,345 INFO L87 Difference]: Start difference. First operand 422 states and 694 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:57,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:21:57,760 INFO L93 Difference]: Finished difference Result 2140 states and 3487 transitions. [2024-11-22 07:21:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 07:21:57,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 471 [2024-11-22 07:21:57,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:21:57,774 INFO L225 Difference]: With dead ends: 2140 [2024-11-22 07:21:57,777 INFO L226 Difference]: Without dead ends: 1721 [2024-11-22 07:21:57,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-22 07:21:57,781 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 1170 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:21:57,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 1859 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 07:21:57,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2024-11-22 07:21:57,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1465. [2024-11-22 07:21:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 992 states have (on average 1.4858870967741935) internal successors, (1474), 998 states have internal predecessors, (1474), 454 states have call successors, (454), 18 states have call predecessors, (454), 18 states have return successors, (454), 448 states have call predecessors, (454), 454 states have call successors, (454) [2024-11-22 07:21:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2382 transitions. [2024-11-22 07:21:57,926 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2382 transitions. Word has length 471 [2024-11-22 07:21:57,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:21:57,927 INFO L471 AbstractCegarLoop]: Abstraction has 1465 states and 2382 transitions. [2024-11-22 07:21:57,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:57,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2382 transitions. [2024-11-22 07:21:57,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:21:57,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:21:57,936 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:57,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:21:57,937 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:21:57,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:21:57,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1664586307, now seen corresponding path program 1 times [2024-11-22 07:21:57,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:21:57,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678811273] [2024-11-22 07:21:57,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:21:57,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:21:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:21:58,341 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-22 07:21:58,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:21:58,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678811273] [2024-11-22 07:21:58,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678811273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:21:58,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:21:58,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:21:58,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489100169] [2024-11-22 07:21:58,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:21:58,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:21:58,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:21:58,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:21:58,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:21:58,346 INFO L87 Difference]: Start difference. First operand 1465 states and 2382 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:58,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:21:58,497 INFO L93 Difference]: Finished difference Result 4389 states and 7140 transitions. [2024-11-22 07:21:58,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:21:58,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 471 [2024-11-22 07:21:58,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:21:58,514 INFO L225 Difference]: With dead ends: 4389 [2024-11-22 07:21:58,514 INFO L226 Difference]: Without dead ends: 2927 [2024-11-22 07:21:58,519 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 07:21:58,520 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 214 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:21:58,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 745 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:21:58,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2024-11-22 07:21:58,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2925. [2024-11-22 07:21:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 1980 states have (on average 1.4828282828282828) internal successors, (2936), 1992 states have internal predecessors, (2936), 908 states have call successors, (908), 36 states have call predecessors, (908), 36 states have return successors, (908), 896 states have call predecessors, (908), 908 states have call successors, (908) [2024-11-22 07:21:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4752 transitions. [2024-11-22 07:21:58,736 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4752 transitions. Word has length 471 [2024-11-22 07:21:58,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:21:58,737 INFO L471 AbstractCegarLoop]: Abstraction has 2925 states and 4752 transitions. [2024-11-22 07:21:58,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:21:58,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4752 transitions. [2024-11-22 07:21:58,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:21:58,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:21:58,742 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:58,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:21:58,742 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:21:58,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:21:58,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1607328005, now seen corresponding path program 1 times [2024-11-22 07:21:58,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:21:58,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110741160] [2024-11-22 07:21:58,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:21:58,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:21:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:21:59,286 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-22 07:21:59,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:21:59,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110741160] [2024-11-22 07:21:59,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110741160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:21:59,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:21:59,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 07:21:59,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443012492] [2024-11-22 07:21:59,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:21:59,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 07:21:59,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:21:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 07:21:59,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:21:59,289 INFO L87 Difference]: Start difference. First operand 2925 states and 4752 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:22:01,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:01,997 INFO L93 Difference]: Finished difference Result 19829 states and 32162 transitions. [2024-11-22 07:22:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 07:22:01,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 471 [2024-11-22 07:22:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:02,094 INFO L225 Difference]: With dead ends: 19829 [2024-11-22 07:22:02,094 INFO L226 Difference]: Without dead ends: 16907 [2024-11-22 07:22:02,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-22 07:22:02,112 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 2066 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 881 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:02,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 1799 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [881 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 07:22:02,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16907 states. [2024-11-22 07:22:02,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16907 to 6953. [2024-11-22 07:22:02,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6953 states, 4884 states have (on average 1.5094185094185095) internal successors, (7372), 4912 states have internal predecessors, (7372), 1988 states have call successors, (1988), 80 states have call predecessors, (1988), 80 states have return successors, (1988), 1960 states have call predecessors, (1988), 1988 states have call successors, (1988) [2024-11-22 07:22:02,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6953 states to 6953 states and 11348 transitions. [2024-11-22 07:22:02,807 INFO L78 Accepts]: Start accepts. Automaton has 6953 states and 11348 transitions. Word has length 471 [2024-11-22 07:22:02,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:02,808 INFO L471 AbstractCegarLoop]: Abstraction has 6953 states and 11348 transitions. [2024-11-22 07:22:02,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:22:02,808 INFO L276 IsEmpty]: Start isEmpty. Operand 6953 states and 11348 transitions. [2024-11-22 07:22:02,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:22:02,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:02,813 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:02,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:22:02,813 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:02,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash 300470455, now seen corresponding path program 1 times [2024-11-22 07:22:02,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813303131] [2024-11-22 07:22:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:02,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-22 07:22:03,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:03,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813303131] [2024-11-22 07:22:03,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813303131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:22:03,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:22:03,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 07:22:03,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883125599] [2024-11-22 07:22:03,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:22:03,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 07:22:03,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:03,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 07:22:03,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:22:03,099 INFO L87 Difference]: Start difference. First operand 6953 states and 11348 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:22:06,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:06,121 INFO L93 Difference]: Finished difference Result 27997 states and 45467 transitions. [2024-11-22 07:22:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 07:22:06,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 471 [2024-11-22 07:22:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:06,218 INFO L225 Difference]: With dead ends: 27997 [2024-11-22 07:22:06,218 INFO L226 Difference]: Without dead ends: 21047 [2024-11-22 07:22:06,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-22 07:22:06,255 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 1930 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 1115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1115 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:06,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1930 Valid, 2126 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1115 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 07:22:06,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21047 states. [2024-11-22 07:22:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21047 to 12791. [2024-11-22 07:22:07,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12791 states, 8806 states have (on average 1.4873949579831933) internal successors, (13098), 8866 states have internal predecessors, (13098), 3828 states have call successors, (3828), 156 states have call predecessors, (3828), 156 states have return successors, (3828), 3768 states have call predecessors, (3828), 3828 states have call successors, (3828) [2024-11-22 07:22:07,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12791 states to 12791 states and 20754 transitions. [2024-11-22 07:22:07,668 INFO L78 Accepts]: Start accepts. Automaton has 12791 states and 20754 transitions. Word has length 471 [2024-11-22 07:22:07,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:07,669 INFO L471 AbstractCegarLoop]: Abstraction has 12791 states and 20754 transitions. [2024-11-22 07:22:07,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:22:07,670 INFO L276 IsEmpty]: Start isEmpty. Operand 12791 states and 20754 transitions. [2024-11-22 07:22:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:22:07,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:07,679 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:07,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:22:07,679 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:07,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:07,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1388473287, now seen corresponding path program 1 times [2024-11-22 07:22:07,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:07,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146866550] [2024-11-22 07:22:07,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:07,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-22 07:22:08,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:08,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146866550] [2024-11-22 07:22:08,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146866550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:22:08,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:22:08,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:22:08,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920673924] [2024-11-22 07:22:08,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:22:08,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:22:08,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:08,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:22:08,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:22:08,174 INFO L87 Difference]: Start difference. First operand 12791 states and 20754 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:22:10,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:10,079 INFO L93 Difference]: Finished difference Result 43157 states and 70201 transitions. [2024-11-22 07:22:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:22:10,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 471 [2024-11-22 07:22:10,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:10,298 INFO L225 Difference]: With dead ends: 43157 [2024-11-22 07:22:10,298 INFO L226 Difference]: Without dead ends: 30369 [2024-11-22 07:22:10,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 07:22:10,338 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 605 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:10,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1442 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 07:22:10,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30369 states. [2024-11-22 07:22:12,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30369 to 30341. [2024-11-22 07:22:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30341 states, 21388 states have (on average 1.4944828876005236) internal successors, (31964), 21532 states have internal predecessors, (31964), 8592 states have call successors, (8592), 360 states have call predecessors, (8592), 360 states have return successors, (8592), 8448 states have call predecessors, (8592), 8592 states have call successors, (8592) [2024-11-22 07:22:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30341 states to 30341 states and 49148 transitions. [2024-11-22 07:22:12,941 INFO L78 Accepts]: Start accepts. Automaton has 30341 states and 49148 transitions. Word has length 471 [2024-11-22 07:22:12,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:12,942 INFO L471 AbstractCegarLoop]: Abstraction has 30341 states and 49148 transitions. [2024-11-22 07:22:12,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-22 07:22:12,943 INFO L276 IsEmpty]: Start isEmpty. Operand 30341 states and 49148 transitions. [2024-11-22 07:22:12,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-22 07:22:12,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:12,955 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:12,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:22:12,956 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:12,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:12,956 INFO L85 PathProgramCache]: Analyzing trace with hash -965771461, now seen corresponding path program 1 times [2024-11-22 07:22:12,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:12,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378144820] [2024-11-22 07:22:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:12,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:13,564 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 69 proven. 156 refuted. 0 times theorem prover too weak. 11175 trivial. 0 not checked. [2024-11-22 07:22:13,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:13,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378144820] [2024-11-22 07:22:13,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378144820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:22:13,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997113938] [2024-11-22 07:22:13,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:13,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:22:13,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:22:13,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 07:22:13,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 07:22:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:13,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 07:22:13,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:22:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 5393 proven. 156 refuted. 0 times theorem prover too weak. 5851 trivial. 0 not checked. [2024-11-22 07:22:14,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 07:22:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 69 proven. 156 refuted. 0 times theorem prover too weak. 11175 trivial. 0 not checked. [2024-11-22 07:22:15,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997113938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 07:22:15,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 07:22:15,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-22 07:22:15,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363363343] [2024-11-22 07:22:15,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 07:22:15,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 07:22:15,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:15,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 07:22:15,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-22 07:22:15,099 INFO L87 Difference]: Start difference. First operand 30341 states and 49148 transitions. Second operand has 13 states, 13 states have (on average 19.153846153846153) internal successors, (249), 13 states have internal predecessors, (249), 6 states have call successors, (212), 3 states have call predecessors, (212), 6 states have return successors, (212), 6 states have call predecessors, (212), 6 states have call successors, (212) [2024-11-22 07:22:17,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:17,665 INFO L93 Difference]: Finished difference Result 62071 states and 99517 transitions. [2024-11-22 07:22:17,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 07:22:17,666 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 19.153846153846153) internal successors, (249), 13 states have internal predecessors, (249), 6 states have call successors, (212), 3 states have call predecessors, (212), 6 states have return successors, (212), 6 states have call predecessors, (212), 6 states have call successors, (212) Word has length 471 [2024-11-22 07:22:17,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:17,821 INFO L225 Difference]: With dead ends: 62071 [2024-11-22 07:22:17,822 INFO L226 Difference]: Without dead ends: 31733 [2024-11-22 07:22:17,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 935 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2024-11-22 07:22:17,905 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 478 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:17,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 724 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 07:22:17,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31733 states. [2024-11-22 07:22:20,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31733 to 31013. [2024-11-22 07:22:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31013 states, 21892 states have (on average 1.4754248127169742) internal successors, (32300), 22036 states have internal predecessors, (32300), 8592 states have call successors, (8592), 528 states have call predecessors, (8592), 528 states have return successors, (8592), 8448 states have call predecessors, (8592), 8592 states have call successors, (8592) [2024-11-22 07:22:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31013 states to 31013 states and 49484 transitions. [2024-11-22 07:22:20,722 INFO L78 Accepts]: Start accepts. Automaton has 31013 states and 49484 transitions. Word has length 471 [2024-11-22 07:22:20,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:20,723 INFO L471 AbstractCegarLoop]: Abstraction has 31013 states and 49484 transitions. [2024-11-22 07:22:20,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 19.153846153846153) internal successors, (249), 13 states have internal predecessors, (249), 6 states have call successors, (212), 3 states have call predecessors, (212), 6 states have return successors, (212), 6 states have call predecessors, (212), 6 states have call successors, (212) [2024-11-22 07:22:20,723 INFO L276 IsEmpty]: Start isEmpty. Operand 31013 states and 49484 transitions. [2024-11-22 07:22:20,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-22 07:22:20,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:20,734 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:20,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 07:22:20,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 07:22:20,936 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:20,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:20,937 INFO L85 PathProgramCache]: Analyzing trace with hash -104745010, now seen corresponding path program 1 times [2024-11-22 07:22:20,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:20,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737740745] [2024-11-22 07:22:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:20,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:21,843 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 138 proven. 87 refuted. 0 times theorem prover too weak. 11175 trivial. 0 not checked. [2024-11-22 07:22:21,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:21,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737740745] [2024-11-22 07:22:21,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737740745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:22:21,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959840957] [2024-11-22 07:22:21,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:21,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:22:21,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:22:21,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 07:22:21,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 07:22:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:22,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 07:22:22,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:22:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 5503 proven. 87 refuted. 0 times theorem prover too weak. 5810 trivial. 0 not checked. [2024-11-22 07:22:22,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 07:22:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 138 proven. 87 refuted. 0 times theorem prover too weak. 11175 trivial. 0 not checked. [2024-11-22 07:22:23,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959840957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 07:22:23,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 07:22:23,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 26 [2024-11-22 07:22:23,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269719081] [2024-11-22 07:22:23,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 07:22:23,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 07:22:23,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:23,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 07:22:23,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2024-11-22 07:22:23,439 INFO L87 Difference]: Start difference. First operand 31013 states and 49484 transitions. Second operand has 26 states, 26 states have (on average 6.3076923076923075) internal successors, (164), 26 states have internal predecessors, (164), 3 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 3 states have call predecessors, (135), 3 states have call successors, (135) [2024-11-22 07:23:00,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:23:00,401 INFO L93 Difference]: Finished difference Result 284962 states and 438999 transitions. [2024-11-22 07:23:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-11-22 07:23:00,402 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.3076923076923075) internal successors, (164), 26 states have internal predecessors, (164), 3 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 3 states have call predecessors, (135), 3 states have call successors, (135) Word has length 472 [2024-11-22 07:23:00,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:23:01,672 INFO L225 Difference]: With dead ends: 284962 [2024-11-22 07:23:01,672 INFO L226 Difference]: Without dead ends: 252128 [2024-11-22 07:23:01,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1064 GetRequests, 952 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4152 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2917, Invalid=9965, Unknown=0, NotChecked=0, Total=12882 [2024-11-22 07:23:01,820 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 6168 mSDsluCounter, 6564 mSDsCounter, 0 mSdLazyCounter, 7430 mSolverCounterSat, 4277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6213 SdHoareTripleChecker+Valid, 7304 SdHoareTripleChecker+Invalid, 11707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4277 IncrementalHoareTripleChecker+Valid, 7430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-22 07:23:01,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6213 Valid, 7304 Invalid, 11707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4277 Valid, 7430 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-22 07:23:01,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252128 states.