./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-52.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 9596c2b1f5a6a86d977a7da5a7a12c7a349c8346134fffef1cb814ea5153401b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 08:05:33,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 08:05:33,570 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 08:05:33,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 08:05:33,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 08:05:33,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 08:05:33,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 08:05:33,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 08:05:33,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 08:05:33,604 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 08:05:33,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 08:05:33,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 08:05:33,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 08:05:33,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 08:05:33,606 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 08:05:33,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 08:05:33,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 08:05:33,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 08:05:33,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 08:05:33,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 08:05:33,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 08:05:33,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 08:05:33,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 08:05:33,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 08:05:33,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 08:05:33,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 08:05:33,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 08:05:33,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 08:05:33,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 08:05:33,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 08:05:33,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 08:05:33,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 08:05:33,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 08:05:33,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 08:05:33,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 08:05:33,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 08:05:33,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 08:05:33,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 08:05:33,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 08:05:33,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 08:05:33,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 08:05:33,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 08:05:33,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9596c2b1f5a6a86d977a7da5a7a12c7a349c8346134fffef1cb814ea5153401b [2024-11-22 08:05:33,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 08:05:33,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 08:05:33,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 08:05:33,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 08:05:33,825 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 08:05:33,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-52.i [2024-11-22 08:05:35,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 08:05:35,301 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 08:05:35,302 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-52.i [2024-11-22 08:05:35,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566e2a1c8/ef13de2e315a48539b360c8ad28170d9/FLAG88ab56e87 [2024-11-22 08:05:35,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566e2a1c8/ef13de2e315a48539b360c8ad28170d9 [2024-11-22 08:05:35,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 08:05:35,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 08:05:35,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 08:05:35,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 08:05:35,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 08:05:35,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21baec1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35, skipping insertion in model container [2024-11-22 08:05:35,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,376 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 08:05:35,535 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_fillercodestructure_filler-pe-ci_file-52.i[919,932] [2024-11-22 08:05:35,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 08:05:35,604 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 08:05:35,613 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-52.i[919,932] [2024-11-22 08:05:35,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 08:05:35,661 INFO L204 MainTranslator]: Completed translation [2024-11-22 08:05:35,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35 WrapperNode [2024-11-22 08:05:35,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 08:05:35,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 08:05:35,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 08:05:35,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 08:05:35,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,719 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 193 [2024-11-22 08:05:35,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 08:05:35,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 08:05:35,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 08:05:35,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 08:05:35,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,733 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,755 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 08:05:35,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,772 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 08:05:35,787 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 08:05:35,787 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 08:05:35,787 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 08:05:35,788 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (1/1) ... [2024-11-22 08:05:35,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 08:05:35,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 08:05:35,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 08:05:35,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 08:05:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 08:05:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 08:05:35,861 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 08:05:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 08:05:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 08:05:35,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 08:05:35,943 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 08:05:35,946 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 08:05:36,290 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-22 08:05:36,291 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 08:05:36,301 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 08:05:36,301 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 08:05:36,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:05:36 BoogieIcfgContainer [2024-11-22 08:05:36,302 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 08:05:36,305 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 08:05:36,305 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 08:05:36,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 08:05:36,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:05:35" (1/3) ... [2024-11-22 08:05:36,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d77d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:05:36, skipping insertion in model container [2024-11-22 08:05:36,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:35" (2/3) ... [2024-11-22 08:05:36,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d77d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:05:36, skipping insertion in model container [2024-11-22 08:05:36,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:05:36" (3/3) ... [2024-11-22 08:05:36,311 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-52.i [2024-11-22 08:05:36,324 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 08:05:36,324 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 08:05:36,371 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 08:05:36,378 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;@10a29d63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 08:05:36,378 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 08:05:36,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 61 states have internal predecessors, (89), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 08:05:36,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 08:05:36,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:36,394 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:36,394 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:36,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:36,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1443516207, now seen corresponding path program 1 times [2024-11-22 08:05:36,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:36,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093118661] [2024-11-22 08:05:36,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:36,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:36,742 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-22 08:05:36,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:36,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093118661] [2024-11-22 08:05:36,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093118661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 08:05:36,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332525792] [2024-11-22 08:05:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:36,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 08:05:36,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 08:05:36,746 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 08:05:36,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 08:05:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:36,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 08:05:36,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 08:05:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-22 08:05:36,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 08:05:36,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332525792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:36,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 08:05:36,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 08:05:36,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006189353] [2024-11-22 08:05:36,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:36,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 08:05:36,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:36,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 08:05:36,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 08:05:36,923 INFO L87 Difference]: Start difference. First operand has 80 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 61 states have internal predecessors, (89), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 08:05:36,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:36,942 INFO L93 Difference]: Finished difference Result 153 states and 257 transitions. [2024-11-22 08:05:36,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 08:05:36,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 125 [2024-11-22 08:05:36,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:36,949 INFO L225 Difference]: With dead ends: 153 [2024-11-22 08:05:36,949 INFO L226 Difference]: Without dead ends: 76 [2024-11-22 08:05:36,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 08:05:36,954 INFO L432 NwaCegarLoop]: 116 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, 116 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:36,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 08:05:36,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-22 08:05:36,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-22 08:05:36,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 57 states have internal predecessors, (82), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 08:05:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 116 transitions. [2024-11-22 08:05:36,985 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 116 transitions. Word has length 125 [2024-11-22 08:05:36,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:36,986 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 116 transitions. [2024-11-22 08:05:36,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 08:05:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 116 transitions. [2024-11-22 08:05:36,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 08:05:36,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:36,990 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:37,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 08:05:37,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 08:05:37,192 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:37,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:37,193 INFO L85 PathProgramCache]: Analyzing trace with hash -973756265, now seen corresponding path program 1 times [2024-11-22 08:05:37,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:37,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24497479] [2024-11-22 08:05:37,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:37,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:37,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:37,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24497479] [2024-11-22 08:05:37,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24497479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:37,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:37,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 08:05:37,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978163275] [2024-11-22 08:05:37,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:37,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 08:05:37,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:37,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 08:05:37,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 08:05:37,500 INFO L87 Difference]: Start difference. First operand 76 states and 116 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:37,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:37,650 INFO L93 Difference]: Finished difference Result 149 states and 229 transitions. [2024-11-22 08:05:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 08:05:37,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 125 [2024-11-22 08:05:37,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:37,653 INFO L225 Difference]: With dead ends: 149 [2024-11-22 08:05:37,653 INFO L226 Difference]: Without dead ends: 76 [2024-11-22 08:05:37,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 08:05:37,655 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 146 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:37,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 174 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 08:05:37,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-22 08:05:37,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-22 08:05:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 57 states have internal predecessors, (81), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 08:05:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 115 transitions. [2024-11-22 08:05:37,680 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 115 transitions. Word has length 125 [2024-11-22 08:05:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:37,682 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 115 transitions. [2024-11-22 08:05:37,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 115 transitions. [2024-11-22 08:05:37,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 08:05:37,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:37,684 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:37,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 08:05:37,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:37,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:37,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1114304875, now seen corresponding path program 1 times [2024-11-22 08:05:37,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:37,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011550912] [2024-11-22 08:05:37,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:37,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:37,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:37,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011550912] [2024-11-22 08:05:37,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011550912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:37,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:37,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 08:05:37,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552523584] [2024-11-22 08:05:37,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:37,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 08:05:37,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:37,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 08:05:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 08:05:37,869 INFO L87 Difference]: Start difference. First operand 76 states and 115 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:38,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:38,003 INFO L93 Difference]: Finished difference Result 272 states and 412 transitions. [2024-11-22 08:05:38,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 08:05:38,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 125 [2024-11-22 08:05:38,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:38,005 INFO L225 Difference]: With dead ends: 272 [2024-11-22 08:05:38,005 INFO L226 Difference]: Without dead ends: 199 [2024-11-22 08:05:38,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 08:05:38,007 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 157 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:38,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 280 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 08:05:38,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-22 08:05:38,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 147. [2024-11-22 08:05:38,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 110 states have (on average 1.4181818181818182) internal successors, (156), 110 states have internal predecessors, (156), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 08:05:38,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 224 transitions. [2024-11-22 08:05:38,036 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 224 transitions. Word has length 125 [2024-11-22 08:05:38,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:38,037 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 224 transitions. [2024-11-22 08:05:38,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 224 transitions. [2024-11-22 08:05:38,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 08:05:38,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:38,039 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:38,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 08:05:38,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:38,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:38,039 INFO L85 PathProgramCache]: Analyzing trace with hash 977135812, now seen corresponding path program 1 times [2024-11-22 08:05:38,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:38,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409684148] [2024-11-22 08:05:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:38,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:38,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:38,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409684148] [2024-11-22 08:05:38,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409684148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:38,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:38,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 08:05:38,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214850456] [2024-11-22 08:05:38,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:38,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 08:05:38,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:38,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 08:05:38,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 08:05:38,198 INFO L87 Difference]: Start difference. First operand 147 states and 224 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:38,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:38,319 INFO L93 Difference]: Finished difference Result 468 states and 713 transitions. [2024-11-22 08:05:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 08:05:38,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 126 [2024-11-22 08:05:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:38,322 INFO L225 Difference]: With dead ends: 468 [2024-11-22 08:05:38,322 INFO L226 Difference]: Without dead ends: 324 [2024-11-22 08:05:38,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 08:05:38,324 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 246 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:38,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 415 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 08:05:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-22 08:05:38,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 285. [2024-11-22 08:05:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 212 states have (on average 1.4056603773584906) internal successors, (298), 212 states have internal predecessors, (298), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-22 08:05:38,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 434 transitions. [2024-11-22 08:05:38,370 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 434 transitions. Word has length 126 [2024-11-22 08:05:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:38,371 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 434 transitions. [2024-11-22 08:05:38,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 434 transitions. [2024-11-22 08:05:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 08:05:38,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:38,375 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:38,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 08:05:38,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:38,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash -394342872, now seen corresponding path program 1 times [2024-11-22 08:05:38,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:38,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509776431] [2024-11-22 08:05:38,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:38,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:38,466 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:38,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:38,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509776431] [2024-11-22 08:05:38,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509776431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:38,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:38,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 08:05:38,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595650638] [2024-11-22 08:05:38,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:38,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 08:05:38,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:38,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 08:05:38,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 08:05:38,468 INFO L87 Difference]: Start difference. First operand 285 states and 434 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:38,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:38,527 INFO L93 Difference]: Finished difference Result 761 states and 1150 transitions. [2024-11-22 08:05:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 08:05:38,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 126 [2024-11-22 08:05:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:38,531 INFO L225 Difference]: With dead ends: 761 [2024-11-22 08:05:38,533 INFO L226 Difference]: Without dead ends: 479 [2024-11-22 08:05:38,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 08:05:38,536 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 71 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:38,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 205 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 08:05:38,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-22 08:05:38,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 297. [2024-11-22 08:05:38,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 224 states have (on average 1.3928571428571428) internal successors, (312), 224 states have internal predecessors, (312), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-22 08:05:38,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 448 transitions. [2024-11-22 08:05:38,577 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 448 transitions. Word has length 126 [2024-11-22 08:05:38,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:38,578 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 448 transitions. [2024-11-22 08:05:38,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:38,578 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 448 transitions. [2024-11-22 08:05:38,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 08:05:38,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:38,580 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:38,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 08:05:38,580 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:38,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:38,580 INFO L85 PathProgramCache]: Analyzing trace with hash -828302522, now seen corresponding path program 1 times [2024-11-22 08:05:38,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:38,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818287313] [2024-11-22 08:05:38,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:38,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:38,787 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:38,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:38,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818287313] [2024-11-22 08:05:38,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818287313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:38,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:38,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 08:05:38,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229101493] [2024-11-22 08:05:38,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:38,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 08:05:38,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:38,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 08:05:38,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 08:05:38,789 INFO L87 Difference]: Start difference. First operand 297 states and 448 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:38,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:38,903 INFO L93 Difference]: Finished difference Result 625 states and 943 transitions. [2024-11-22 08:05:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 08:05:38,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 126 [2024-11-22 08:05:38,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:38,906 INFO L225 Difference]: With dead ends: 625 [2024-11-22 08:05:38,906 INFO L226 Difference]: Without dead ends: 331 [2024-11-22 08:05:38,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 08:05:38,908 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 174 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:38,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 343 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 08:05:38,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-22 08:05:38,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 163. [2024-11-22 08:05:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 126 states have (on average 1.3888888888888888) internal successors, (175), 126 states have internal predecessors, (175), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 08:05:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 243 transitions. [2024-11-22 08:05:38,929 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 243 transitions. Word has length 126 [2024-11-22 08:05:38,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:38,929 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 243 transitions. [2024-11-22 08:05:38,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 243 transitions. [2024-11-22 08:05:38,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 08:05:38,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:38,930 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:38,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 08:05:38,931 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:38,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:38,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1809263044, now seen corresponding path program 1 times [2024-11-22 08:05:38,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:38,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299969820] [2024-11-22 08:05:38,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:38,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:38,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:38,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299969820] [2024-11-22 08:05:38,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299969820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:38,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:38,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 08:05:38,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832938627] [2024-11-22 08:05:38,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:38,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 08:05:38,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:38,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 08:05:38,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 08:05:38,991 INFO L87 Difference]: Start difference. First operand 163 states and 243 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:39,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:39,049 INFO L93 Difference]: Finished difference Result 471 states and 703 transitions. [2024-11-22 08:05:39,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 08:05:39,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 126 [2024-11-22 08:05:39,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:39,051 INFO L225 Difference]: With dead ends: 471 [2024-11-22 08:05:39,051 INFO L226 Difference]: Without dead ends: 311 [2024-11-22 08:05:39,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 08:05:39,052 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 97 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:39,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 312 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 08:05:39,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-22 08:05:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 175. [2024-11-22 08:05:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.3840579710144927) internal successors, (191), 138 states have internal predecessors, (191), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 08:05:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 259 transitions. [2024-11-22 08:05:39,076 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 259 transitions. Word has length 126 [2024-11-22 08:05:39,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:39,076 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 259 transitions. [2024-11-22 08:05:39,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:39,077 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 259 transitions. [2024-11-22 08:05:39,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 08:05:39,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:39,078 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:39,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 08:05:39,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:39,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:39,080 INFO L85 PathProgramCache]: Analyzing trace with hash 3824710, now seen corresponding path program 1 times [2024-11-22 08:05:39,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:39,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463596909] [2024-11-22 08:05:39,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:39,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:39,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:39,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463596909] [2024-11-22 08:05:39,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463596909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:39,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:39,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 08:05:39,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428728410] [2024-11-22 08:05:39,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:39,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 08:05:39,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 08:05:39,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 08:05:39,647 INFO L87 Difference]: Start difference. First operand 175 states and 259 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 08:05:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:40,177 INFO L93 Difference]: Finished difference Result 463 states and 688 transitions. [2024-11-22 08:05:40,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 08:05:40,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2024-11-22 08:05:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:40,179 INFO L225 Difference]: With dead ends: 463 [2024-11-22 08:05:40,179 INFO L226 Difference]: Without dead ends: 291 [2024-11-22 08:05:40,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-22 08:05:40,180 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 355 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:40,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 561 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 08:05:40,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-22 08:05:40,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 261. [2024-11-22 08:05:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 206 states have (on average 1.3786407766990292) internal successors, (284), 206 states have internal predecessors, (284), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-22 08:05:40,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 386 transitions. [2024-11-22 08:05:40,206 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 386 transitions. Word has length 126 [2024-11-22 08:05:40,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:40,207 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 386 transitions. [2024-11-22 08:05:40,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 08:05:40,207 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 386 transitions. [2024-11-22 08:05:40,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-22 08:05:40,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:40,208 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:40,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 08:05:40,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:40,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:40,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1918720624, now seen corresponding path program 1 times [2024-11-22 08:05:40,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:40,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355919166] [2024-11-22 08:05:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:40,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:40,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:40,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355919166] [2024-11-22 08:05:40,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355919166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:40,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:40,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 08:05:40,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853037617] [2024-11-22 08:05:40,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:40,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 08:05:40,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:40,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 08:05:40,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-22 08:05:40,968 INFO L87 Difference]: Start difference. First operand 261 states and 386 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 08:05:41,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:41,737 INFO L93 Difference]: Finished difference Result 463 states and 669 transitions. [2024-11-22 08:05:41,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 08:05:41,738 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 127 [2024-11-22 08:05:41,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:41,739 INFO L225 Difference]: With dead ends: 463 [2024-11-22 08:05:41,740 INFO L226 Difference]: Without dead ends: 375 [2024-11-22 08:05:41,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2024-11-22 08:05:41,740 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 388 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:41,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 893 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 08:05:41,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-22 08:05:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 323. [2024-11-22 08:05:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 258 states have (on average 1.372093023255814) internal successors, (354), 260 states have internal predecessors, (354), 59 states have call successors, (59), 5 states have call predecessors, (59), 5 states have return successors, (59), 57 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-22 08:05:41,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 472 transitions. [2024-11-22 08:05:41,770 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 472 transitions. Word has length 127 [2024-11-22 08:05:41,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:41,770 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 472 transitions. [2024-11-22 08:05:41,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 08:05:41,771 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 472 transitions. [2024-11-22 08:05:41,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 08:05:41,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:41,772 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:41,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 08:05:41,772 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:41,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:41,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1973459684, now seen corresponding path program 1 times [2024-11-22 08:05:41,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:41,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246816399] [2024-11-22 08:05:41,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:41,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:42,042 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:42,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:42,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246816399] [2024-11-22 08:05:42,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246816399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:42,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:42,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 08:05:42,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079600724] [2024-11-22 08:05:42,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:42,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 08:05:42,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:42,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 08:05:42,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 08:05:42,045 INFO L87 Difference]: Start difference. First operand 323 states and 472 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:42,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:42,260 INFO L93 Difference]: Finished difference Result 712 states and 1020 transitions. [2024-11-22 08:05:42,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 08:05:42,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2024-11-22 08:05:42,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:42,265 INFO L225 Difference]: With dead ends: 712 [2024-11-22 08:05:42,266 INFO L226 Difference]: Without dead ends: 492 [2024-11-22 08:05:42,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 08:05:42,267 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 173 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:42,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 337 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 08:05:42,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-22 08:05:42,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 488. [2024-11-22 08:05:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 395 states have (on average 1.349367088607595) internal successors, (533), 400 states have internal predecessors, (533), 79 states have call successors, (79), 13 states have call predecessors, (79), 13 states have return successors, (79), 74 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 08:05:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 691 transitions. [2024-11-22 08:05:42,323 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 691 transitions. Word has length 128 [2024-11-22 08:05:42,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:42,326 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 691 transitions. [2024-11-22 08:05:42,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 08:05:42,326 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 691 transitions. [2024-11-22 08:05:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 08:05:42,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:42,327 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:42,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 08:05:42,327 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:42,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:42,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1058659075, now seen corresponding path program 1 times [2024-11-22 08:05:42,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:42,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431865201] [2024-11-22 08:05:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:42,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:44,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:44,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431865201] [2024-11-22 08:05:44,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431865201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:44,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:44,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 08:05:44,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159902460] [2024-11-22 08:05:44,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:44,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 08:05:44,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:44,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 08:05:44,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-22 08:05:44,920 INFO L87 Difference]: Start difference. First operand 488 states and 691 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 08:05:46,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:46,418 INFO L93 Difference]: Finished difference Result 1169 states and 1654 transitions. [2024-11-22 08:05:46,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 08:05:46,419 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 129 [2024-11-22 08:05:46,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:46,424 INFO L225 Difference]: With dead ends: 1169 [2024-11-22 08:05:46,424 INFO L226 Difference]: Without dead ends: 795 [2024-11-22 08:05:46,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2024-11-22 08:05:46,425 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 543 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:46,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 535 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 08:05:46,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2024-11-22 08:05:46,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 528. [2024-11-22 08:05:46,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 435 states have (on average 1.3655172413793104) internal successors, (594), 440 states have internal predecessors, (594), 79 states have call successors, (79), 13 states have call predecessors, (79), 13 states have return successors, (79), 74 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 08:05:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 752 transitions. [2024-11-22 08:05:46,465 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 752 transitions. Word has length 129 [2024-11-22 08:05:46,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:46,466 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 752 transitions. [2024-11-22 08:05:46,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 08:05:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 752 transitions. [2024-11-22 08:05:46,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 08:05:46,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:46,468 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:46,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 08:05:46,468 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:46,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:46,469 INFO L85 PathProgramCache]: Analyzing trace with hash -2079727429, now seen corresponding path program 1 times [2024-11-22 08:05:46,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:46,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875201902] [2024-11-22 08:05:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:46,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 08:05:47,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:47,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875201902] [2024-11-22 08:05:47,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875201902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:47,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:47,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 08:05:47,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688265978] [2024-11-22 08:05:47,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:47,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 08:05:47,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:47,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 08:05:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-22 08:05:47,469 INFO L87 Difference]: Start difference. First operand 528 states and 752 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 08:05:48,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:48,177 INFO L93 Difference]: Finished difference Result 961 states and 1365 transitions. [2024-11-22 08:05:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 08:05:48,177 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 129 [2024-11-22 08:05:48,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:48,182 INFO L225 Difference]: With dead ends: 961 [2024-11-22 08:05:48,183 INFO L226 Difference]: Without dead ends: 666 [2024-11-22 08:05:48,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-22 08:05:48,185 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 471 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:48,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 518 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 08:05:48,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-22 08:05:48,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 535. [2024-11-22 08:05:48,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 442 states have (on average 1.3687782805429864) internal successors, (605), 447 states have internal predecessors, (605), 79 states have call successors, (79), 13 states have call predecessors, (79), 13 states have return successors, (79), 74 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 08:05:48,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 763 transitions. [2024-11-22 08:05:48,244 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 763 transitions. Word has length 129 [2024-11-22 08:05:48,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:48,245 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 763 transitions. [2024-11-22 08:05:48,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 08:05:48,245 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 763 transitions. [2024-11-22 08:05:48,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 08:05:48,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:48,247 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:48,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 08:05:48,247 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:48,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:48,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1566375867, now seen corresponding path program 1 times [2024-11-22 08:05:48,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:48,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476900231] [2024-11-22 08:05:48,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:48,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat