./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.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 10a5b91e206caf05061e8827c7f121f08b981a096162c865ff7d0b016f9308fd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:54:29,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:54:29,585 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:54:29,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:54:29,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:54:29,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:54:29,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:54:29,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:54:29,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:54:29,636 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:54:29,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:54:29,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:54:29,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:54:29,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:54:29,638 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:54:29,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:54:29,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:54:29,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:54:29,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:54:29,639 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:54:29,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:54:29,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:54:29,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:54:29,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:54:29,644 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:54:29,644 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:54:29,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:54:29,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:54:29,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:54:29,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:54:29,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:54:29,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:54:29,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:54:29,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:54:29,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:54:29,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:54:29,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:54:29,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:54:29,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:54:29,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:54:29,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:54:29,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:54:29,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10a5b91e206caf05061e8827c7f121f08b981a096162c865ff7d0b016f9308fd [2024-11-18 19:54:29,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:54:29,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:54:29,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:54:29,937 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:54:29,937 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:54:29,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i [2024-11-18 19:54:31,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:54:31,686 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:54:31,687 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i [2024-11-18 19:54:31,702 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dcce0452/5b1e26873a7245688dd3f5bed62e7bb8/FLAGab7847ec4 [2024-11-18 19:54:31,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dcce0452/5b1e26873a7245688dd3f5bed62e7bb8 [2024-11-18 19:54:31,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:54:31,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:54:31,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:54:31,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:54:31,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:54:31,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:31" (1/1) ... [2024-11-18 19:54:31,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1542b285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:31, skipping insertion in model container [2024-11-18 19:54:31,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:31" (1/1) ... [2024-11-18 19:54:31,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:54:31,968 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i[916,929] [2024-11-18 19:54:32,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:54:32,188 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:54:32,203 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i[916,929] [2024-11-18 19:54:32,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:54:32,329 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:54:32,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32 WrapperNode [2024-11-18 19:54:32,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:54:32,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:54:32,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:54:32,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:54:32,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,454 INFO L138 Inliner]: procedures = 26, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 835 [2024-11-18 19:54:32,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:54:32,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:54:32,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:54:32,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:54:32,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,534 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:54:32,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:54:32,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:54:32,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:54:32,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:54:32,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2024-11-18 19:54:32,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:54:32,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:54:32,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:54:32,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:54:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:54:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:54:32,748 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:54:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:54:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:54:32,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:54:32,921 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:54:32,923 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:54:34,379 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-18 19:54:34,383 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:54:34,422 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:54:34,422 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:54:34,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:34 BoogieIcfgContainer [2024-11-18 19:54:34,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:54:34,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:54:34,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:54:34,429 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:54:34,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:54:31" (1/3) ... [2024-11-18 19:54:34,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40391768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:34, skipping insertion in model container [2024-11-18 19:54:34,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (2/3) ... [2024-11-18 19:54:34,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40391768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:34, skipping insertion in model container [2024-11-18 19:54:34,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:34" (3/3) ... [2024-11-18 19:54:34,432 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-69.i [2024-11-18 19:54:34,448 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:54:34,449 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:54:34,533 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:54:34,544 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;@47f14b05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:54:34,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:54:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 223 states have (on average 1.5695067264573992) internal successors, (350), 224 states have internal predecessors, (350), 124 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-18 19:54:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-18 19:54:34,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:34,602 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:34,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:34,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:34,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1703380531, now seen corresponding path program 1 times [2024-11-18 19:54:34,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:34,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378341520] [2024-11-18 19:54:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:34,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 30258 trivial. 0 not checked. [2024-11-18 19:54:35,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:35,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378341520] [2024-11-18 19:54:35,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378341520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:54:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485162564] [2024-11-18 19:54:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:35,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:54:35,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:54:35,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:54:35,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:54:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:35,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:54:35,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:54:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 30258 trivial. 0 not checked. [2024-11-18 19:54:35,974 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:54:35,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485162564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:35,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:54:35,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:54:35,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334001113] [2024-11-18 19:54:35,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:35,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:54:35,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:36,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:54:36,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:54:36,019 INFO L87 Difference]: Start difference. First operand has 350 states, 223 states have (on average 1.5695067264573992) internal successors, (350), 224 states have internal predecessors, (350), 124 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 2 states have call successors, (124) [2024-11-18 19:54:36,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:36,104 INFO L93 Difference]: Finished difference Result 693 states and 1314 transitions. [2024-11-18 19:54:36,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:54:36,107 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 2 states have call successors, (124) Word has length 775 [2024-11-18 19:54:36,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:36,121 INFO L225 Difference]: With dead ends: 693 [2024-11-18 19:54:36,121 INFO L226 Difference]: Without dead ends: 346 [2024-11-18 19:54:36,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:54:36,131 INFO L432 NwaCegarLoop]: 589 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, 589 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:36,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:36,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-18 19:54:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-11-18 19:54:36,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 220 states have (on average 1.55) internal successors, (341), 220 states have internal predecessors, (341), 124 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-18 19:54:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 589 transitions. [2024-11-18 19:54:36,241 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 589 transitions. Word has length 775 [2024-11-18 19:54:36,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:36,243 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 589 transitions. [2024-11-18 19:54:36,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 2 states have call successors, (124) [2024-11-18 19:54:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 589 transitions. [2024-11-18 19:54:36,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-18 19:54:36,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:36,266 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:36,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:54:36,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:54:36,471 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:36,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:36,472 INFO L85 PathProgramCache]: Analyzing trace with hash -236689015, now seen corresponding path program 1 times [2024-11-18 19:54:36,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:36,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266891235] [2024-11-18 19:54:36,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:36,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:37,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:37,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266891235] [2024-11-18 19:54:37,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266891235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:37,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:37,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:37,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002882595] [2024-11-18 19:54:37,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:37,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:37,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:37,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:37,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:37,387 INFO L87 Difference]: Start difference. First operand 346 states and 589 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:37,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:37,520 INFO L93 Difference]: Finished difference Result 879 states and 1507 transitions. [2024-11-18 19:54:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:37,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 775 [2024-11-18 19:54:37,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:37,534 INFO L225 Difference]: With dead ends: 879 [2024-11-18 19:54:37,535 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 19:54:37,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:37,538 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 321 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:37,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 1264 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:54:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 19:54:37,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 533. [2024-11-18 19:54:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 377 states have (on average 1.6047745358090186) internal successors, (605), 378 states have internal predecessors, (605), 153 states have call successors, (153), 2 states have call predecessors, (153), 2 states have return successors, (153), 152 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-18 19:54:37,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 911 transitions. [2024-11-18 19:54:37,628 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 911 transitions. Word has length 775 [2024-11-18 19:54:37,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:37,631 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 911 transitions. [2024-11-18 19:54:37,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:37,633 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 911 transitions. [2024-11-18 19:54:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-18 19:54:37,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:37,687 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:37,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:54:37,687 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:37,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:37,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2088754359, now seen corresponding path program 1 times [2024-11-18 19:54:37,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:37,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538764683] [2024-11-18 19:54:37,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:37,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:38,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:38,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538764683] [2024-11-18 19:54:38,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538764683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:38,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:38,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:38,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935684946] [2024-11-18 19:54:38,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:38,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:38,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:38,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:38,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:38,317 INFO L87 Difference]: Start difference. First operand 533 states and 911 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:38,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:38,444 INFO L93 Difference]: Finished difference Result 1583 states and 2709 transitions. [2024-11-18 19:54:38,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:38,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 775 [2024-11-18 19:54:38,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:38,455 INFO L225 Difference]: With dead ends: 1583 [2024-11-18 19:54:38,455 INFO L226 Difference]: Without dead ends: 1053 [2024-11-18 19:54:38,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:38,458 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 369 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:38,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1372 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:38,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-11-18 19:54:38,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1050. [2024-11-18 19:54:38,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 739 states have (on average 1.5953991880920162) internal successors, (1179), 741 states have internal predecessors, (1179), 306 states have call successors, (306), 4 states have call predecessors, (306), 4 states have return successors, (306), 304 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-18 19:54:38,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1791 transitions. [2024-11-18 19:54:38,614 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1791 transitions. Word has length 775 [2024-11-18 19:54:38,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:38,617 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1791 transitions. [2024-11-18 19:54:38,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:38,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1791 transitions. [2024-11-18 19:54:38,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-18 19:54:38,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:38,627 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:38,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:54:38,628 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:38,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:38,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1285249721, now seen corresponding path program 1 times [2024-11-18 19:54:38,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:38,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047945142] [2024-11-18 19:54:38,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:38,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:39,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:39,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047945142] [2024-11-18 19:54:39,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047945142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:39,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:39,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:39,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839550489] [2024-11-18 19:54:39,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:39,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:39,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:39,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:39,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:39,045 INFO L87 Difference]: Start difference. First operand 1050 states and 1791 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:39,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:39,175 INFO L93 Difference]: Finished difference Result 2110 states and 3607 transitions. [2024-11-18 19:54:39,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:39,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 775 [2024-11-18 19:54:39,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:39,189 INFO L225 Difference]: With dead ends: 2110 [2024-11-18 19:54:39,190 INFO L226 Difference]: Without dead ends: 1580 [2024-11-18 19:54:39,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:39,196 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 580 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:39,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1727 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:54:39,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-18 19:54:39,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1577. [2024-11-18 19:54:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1111 states have (on average 1.5976597659765976) internal successors, (1775), 1114 states have internal predecessors, (1775), 459 states have call successors, (459), 6 states have call predecessors, (459), 6 states have return successors, (459), 456 states have call predecessors, (459), 459 states have call successors, (459) [2024-11-18 19:54:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2693 transitions. [2024-11-18 19:54:39,386 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2693 transitions. Word has length 775 [2024-11-18 19:54:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:39,388 INFO L471 AbstractCegarLoop]: Abstraction has 1577 states and 2693 transitions. [2024-11-18 19:54:39,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:39,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2693 transitions. [2024-11-18 19:54:39,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2024-11-18 19:54:39,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:39,395 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:39,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:54:39,396 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:39,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:39,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1256205793, now seen corresponding path program 1 times [2024-11-18 19:54:39,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:39,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209236524] [2024-11-18 19:54:39,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:39,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209236524] [2024-11-18 19:54:39,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209236524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:39,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:39,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:39,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477369009] [2024-11-18 19:54:39,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:39,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:39,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:39,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:39,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:39,724 INFO L87 Difference]: Start difference. First operand 1577 states and 2693 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:39,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:39,839 INFO L93 Difference]: Finished difference Result 3168 states and 5396 transitions. [2024-11-18 19:54:39,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:39,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 777 [2024-11-18 19:54:39,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:39,853 INFO L225 Difference]: With dead ends: 3168 [2024-11-18 19:54:39,853 INFO L226 Difference]: Without dead ends: 1594 [2024-11-18 19:54:39,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:39,860 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 328 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:39,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1340 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:39,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2024-11-18 19:54:40,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1316. [2024-11-18 19:54:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 937 states have (on average 1.5933831376734258) internal successors, (1493), 937 states have internal predecessors, (1493), 372 states have call successors, (372), 6 states have call predecessors, (372), 6 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-18 19:54:40,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 2237 transitions. [2024-11-18 19:54:40,057 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 2237 transitions. Word has length 777 [2024-11-18 19:54:40,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:40,058 INFO L471 AbstractCegarLoop]: Abstraction has 1316 states and 2237 transitions. [2024-11-18 19:54:40,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:40,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 2237 transitions. [2024-11-18 19:54:40,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2024-11-18 19:54:40,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:40,070 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:40,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:54:40,071 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:40,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash -2132239413, now seen corresponding path program 1 times [2024-11-18 19:54:40,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:40,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969026467] [2024-11-18 19:54:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:40,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:40,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:40,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969026467] [2024-11-18 19:54:40,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969026467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:40,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:40,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:54:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110852046] [2024-11-18 19:54:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:40,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:54:40,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:40,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:54:40,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:54:40,531 INFO L87 Difference]: Start difference. First operand 1316 states and 2237 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:41,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:41,305 INFO L93 Difference]: Finished difference Result 5542 states and 9401 transitions. [2024-11-18 19:54:41,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:54:41,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 778 [2024-11-18 19:54:41,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:41,337 INFO L225 Difference]: With dead ends: 5542 [2024-11-18 19:54:41,337 INFO L226 Difference]: Without dead ends: 4229 [2024-11-18 19:54:41,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:54:41,348 INFO L432 NwaCegarLoop]: 990 mSDtfsCounter, 1339 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:41,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 2779 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:54:41,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4229 states. [2024-11-18 19:54:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4229 to 4217. [2024-11-18 19:54:41,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 2908 states have (on average 1.5557083906464924) internal successors, (4524), 2914 states have internal predecessors, (4524), 1284 states have call successors, (1284), 24 states have call predecessors, (1284), 24 states have return successors, (1284), 1278 states have call predecessors, (1284), 1284 states have call successors, (1284) [2024-11-18 19:54:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 7092 transitions. [2024-11-18 19:54:41,810 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 7092 transitions. Word has length 778 [2024-11-18 19:54:41,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:41,811 INFO L471 AbstractCegarLoop]: Abstraction has 4217 states and 7092 transitions. [2024-11-18 19:54:41,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:41,812 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 7092 transitions. [2024-11-18 19:54:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:54:41,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:41,821 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:41,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:54:41,821 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:41,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:41,822 INFO L85 PathProgramCache]: Analyzing trace with hash -2025215113, now seen corresponding path program 1 times [2024-11-18 19:54:41,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:41,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007038193] [2024-11-18 19:54:41,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:41,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:42,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:42,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007038193] [2024-11-18 19:54:42,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007038193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:42,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:42,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:42,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194621140] [2024-11-18 19:54:42,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:42,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:42,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:42,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:42,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:42,124 INFO L87 Difference]: Start difference. First operand 4217 states and 7092 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:42,512 INFO L93 Difference]: Finished difference Result 11529 states and 19342 transitions. [2024-11-18 19:54:42,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:42,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-18 19:54:42,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:42,566 INFO L225 Difference]: With dead ends: 11529 [2024-11-18 19:54:42,566 INFO L226 Difference]: Without dead ends: 7315 [2024-11-18 19:54:42,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:42,588 INFO L432 NwaCegarLoop]: 813 mSDtfsCounter, 349 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:42,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1390 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:42,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2024-11-18 19:54:43,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 7301. [2024-11-18 19:54:43,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 4912 states have (on average 1.5342019543973942) internal successors, (7536), 4930 states have internal predecessors, (7536), 2340 states have call successors, (2340), 48 states have call predecessors, (2340), 48 states have return successors, (2340), 2322 states have call predecessors, (2340), 2340 states have call successors, (2340) [2024-11-18 19:54:43,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 12216 transitions. [2024-11-18 19:54:43,370 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 12216 transitions. Word has length 779 [2024-11-18 19:54:43,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:43,372 INFO L471 AbstractCegarLoop]: Abstraction has 7301 states and 12216 transitions. [2024-11-18 19:54:43,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 12216 transitions. [2024-11-18 19:54:43,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:54:43,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:43,384 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:43,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:54:43,385 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:43,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:43,385 INFO L85 PathProgramCache]: Analyzing trace with hash 25768885, now seen corresponding path program 1 times [2024-11-18 19:54:43,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:43,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262484250] [2024-11-18 19:54:43,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:43,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:43,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:43,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262484250] [2024-11-18 19:54:43,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262484250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:43,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:43,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:43,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606834542] [2024-11-18 19:54:43,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:43,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:43,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:43,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:43,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:43,747 INFO L87 Difference]: Start difference. First operand 7301 states and 12216 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:44,485 INFO L93 Difference]: Finished difference Result 21897 states and 36642 transitions. [2024-11-18 19:54:44,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:44,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-18 19:54:44,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:44,613 INFO L225 Difference]: With dead ends: 21897 [2024-11-18 19:54:44,614 INFO L226 Difference]: Without dead ends: 14599 [2024-11-18 19:54:44,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:44,655 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 584 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:44,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1168 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:44,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2024-11-18 19:54:46,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 14597. [2024-11-18 19:54:46,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14597 states, 9820 states have (on average 1.5295315682281059) internal successors, (15020), 9856 states have internal predecessors, (15020), 4680 states have call successors, (4680), 96 states have call predecessors, (4680), 96 states have return successors, (4680), 4644 states have call predecessors, (4680), 4680 states have call successors, (4680) [2024-11-18 19:54:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14597 states to 14597 states and 24380 transitions. [2024-11-18 19:54:46,445 INFO L78 Accepts]: Start accepts. Automaton has 14597 states and 24380 transitions. Word has length 779 [2024-11-18 19:54:46,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:46,447 INFO L471 AbstractCegarLoop]: Abstraction has 14597 states and 24380 transitions. [2024-11-18 19:54:46,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:46,448 INFO L276 IsEmpty]: Start isEmpty. Operand 14597 states and 24380 transitions. [2024-11-18 19:54:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:54:46,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:46,469 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:46,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:54:46,470 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:46,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:46,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1663174857, now seen corresponding path program 1 times [2024-11-18 19:54:46,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:46,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832712904] [2024-11-18 19:54:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:47,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:47,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832712904] [2024-11-18 19:54:47,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832712904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:47,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:47,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:47,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239184961] [2024-11-18 19:54:47,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:47,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:47,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:47,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:47,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:47,699 INFO L87 Difference]: Start difference. First operand 14597 states and 24380 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:49,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:49,118 INFO L93 Difference]: Finished difference Result 38377 states and 64134 transitions. [2024-11-18 19:54:49,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:49,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-18 19:54:49,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:49,278 INFO L225 Difference]: With dead ends: 38377 [2024-11-18 19:54:49,278 INFO L226 Difference]: Without dead ends: 28619 [2024-11-18 19:54:49,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:49,339 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 545 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:49,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1160 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:54:49,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28619 states. [2024-11-18 19:54:52,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28619 to 14613. [2024-11-18 19:54:52,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14613 states, 9836 states have (on average 1.5294835298901992) internal successors, (15044), 9872 states have internal predecessors, (15044), 4680 states have call successors, (4680), 96 states have call predecessors, (4680), 96 states have return successors, (4680), 4644 states have call predecessors, (4680), 4680 states have call successors, (4680) [2024-11-18 19:54:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14613 states to 14613 states and 24404 transitions. [2024-11-18 19:54:52,250 INFO L78 Accepts]: Start accepts. Automaton has 14613 states and 24404 transitions. Word has length 779 [2024-11-18 19:54:52,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:52,251 INFO L471 AbstractCegarLoop]: Abstraction has 14613 states and 24404 transitions. [2024-11-18 19:54:52,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:52,252 INFO L276 IsEmpty]: Start isEmpty. Operand 14613 states and 24404 transitions. [2024-11-18 19:54:52,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:54:52,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:52,266 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:52,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:54:52,266 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:52,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:52,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1691234930, now seen corresponding path program 1 times [2024-11-18 19:54:52,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:52,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996467721] [2024-11-18 19:54:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:52,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:52,739 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:52,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:52,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996467721] [2024-11-18 19:54:52,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996467721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:52,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:52,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:54:52,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857462701] [2024-11-18 19:54:52,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:52,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:54:52,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:52,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:54:52,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:54:52,746 INFO L87 Difference]: Start difference. First operand 14613 states and 24404 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:54,267 INFO L93 Difference]: Finished difference Result 39009 states and 65226 transitions. [2024-11-18 19:54:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:54:54,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-18 19:54:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:54,426 INFO L225 Difference]: With dead ends: 39009 [2024-11-18 19:54:54,426 INFO L226 Difference]: Without dead ends: 24399 [2024-11-18 19:54:54,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:54:54,495 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 346 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:54,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1634 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:54:54,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24399 states. [2024-11-18 19:54:56,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24399 to 24349. [2024-11-18 19:54:56,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24349 states, 17892 states have (on average 1.5774647887323943) internal successors, (28224), 17976 states have internal predecessors, (28224), 6264 states have call successors, (6264), 192 states have call predecessors, (6264), 192 states have return successors, (6264), 6180 states have call predecessors, (6264), 6264 states have call successors, (6264) [2024-11-18 19:54:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24349 states to 24349 states and 40752 transitions. [2024-11-18 19:54:56,823 INFO L78 Accepts]: Start accepts. Automaton has 24349 states and 40752 transitions. Word has length 779 [2024-11-18 19:54:56,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:56,825 INFO L471 AbstractCegarLoop]: Abstraction has 24349 states and 40752 transitions. [2024-11-18 19:54:56,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:54:56,825 INFO L276 IsEmpty]: Start isEmpty. Operand 24349 states and 40752 transitions. [2024-11-18 19:54:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:54:56,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:56,852 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:56,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:54:56,852 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:56,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:56,853 INFO L85 PathProgramCache]: Analyzing trace with hash -727249548, now seen corresponding path program 1 times [2024-11-18 19:54:56,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:56,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316607832] [2024-11-18 19:54:56,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:56,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:54:58,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:58,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316607832] [2024-11-18 19:54:58,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316607832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:58,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:58,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:54:58,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597446544] [2024-11-18 19:54:58,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:58,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:54:58,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:58,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:54:58,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:54:58,003 INFO L87 Difference]: Start difference. First operand 24349 states and 40752 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:55:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:55:03,444 INFO L93 Difference]: Finished difference Result 99501 states and 166444 transitions. [2024-11-18 19:55:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:55:03,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-18 19:55:03,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:55:03,834 INFO L225 Difference]: With dead ends: 99501 [2024-11-18 19:55:03,835 INFO L226 Difference]: Without dead ends: 75155 [2024-11-18 19:55:03,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:55:03,934 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 1505 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:55:03,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 2256 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 19:55:03,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75155 states. [2024-11-18 19:55:08,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75155 to 68885. [2024-11-18 19:55:08,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68885 states, 52876 states have (on average 1.5960360087752476) internal successors, (84392), 53152 states have internal predecessors, (84392), 15384 states have call successors, (15384), 624 states have call predecessors, (15384), 624 states have return successors, (15384), 15108 states have call predecessors, (15384), 15384 states have call successors, (15384) [2024-11-18 19:55:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68885 states to 68885 states and 115160 transitions. [2024-11-18 19:55:09,159 INFO L78 Accepts]: Start accepts. Automaton has 68885 states and 115160 transitions. Word has length 779 [2024-11-18 19:55:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:55:09,161 INFO L471 AbstractCegarLoop]: Abstraction has 68885 states and 115160 transitions. [2024-11-18 19:55:09,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:55:09,161 INFO L276 IsEmpty]: Start isEmpty. Operand 68885 states and 115160 transitions. [2024-11-18 19:55:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:55:09,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:55:09,218 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:55:09,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:55:09,218 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:55:09,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:55:09,219 INFO L85 PathProgramCache]: Analyzing trace with hash -25649674, now seen corresponding path program 1 times [2024-11-18 19:55:09,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:55:09,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845343822] [2024-11-18 19:55:09,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:55:09,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:55:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:55:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-18 19:55:13,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:55:13,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845343822] [2024-11-18 19:55:13,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845343822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:55:13,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:55:13,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:55:13,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389595710] [2024-11-18 19:55:13,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:55:13,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:55:13,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:55:13,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:55:13,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:55:13,887 INFO L87 Difference]: Start difference. First operand 68885 states and 115160 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-18 19:55:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:55:28,297 INFO L93 Difference]: Finished difference Result 338281 states and 564182 transitions. [2024-11-18 19:55:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:55:28,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-18 19:55:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:55:29,875 INFO L225 Difference]: With dead ends: 338281 [2024-11-18 19:55:29,875 INFO L226 Difference]: Without dead ends: 269399 [2024-11-18 19:55:30,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:55:30,099 INFO L432 NwaCegarLoop]: 1013 mSDtfsCounter, 2347 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 819 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2347 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:55:30,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2347 Valid, 3472 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 19:55:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269399 states.