./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label08.c --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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label08.c -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 5661dd51a89476ec423182a94520e4ccb4afe3fa5cba3e5cadf7302b2a1362a5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:56:01,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:56:01,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:56:01,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:56:01,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:56:01,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:56:01,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:56:01,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:56:01,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:56:01,771 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:56:01,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:56:01,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:56:01,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:56:01,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:56:01,774 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:56:01,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:56:01,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:56:01,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:56:01,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:56:01,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:56:01,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:56:01,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:56:01,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:56:01,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:56:01,778 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:56:01,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:56:01,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:56:01,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:56:01,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:56:01,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:56:01,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:56:01,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:56:01,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:56:01,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:56:01,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:56:01,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:56:01,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:56:01,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:56:01,791 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:56:01,791 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:56:01,792 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:56:01,792 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:56:01,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5661dd51a89476ec423182a94520e4ccb4afe3fa5cba3e5cadf7302b2a1362a5 [2024-11-22 03:56:02,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:56:02,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:56:02,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:56:02,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:56:02,067 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:56:02,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label08.c [2024-11-22 03:56:03,544 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:56:04,049 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:56:04,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label08.c [2024-11-22 03:56:04,097 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2fc9da3/c829085c5eac408cb96080c528a4b72b/FLAG599649ac4 [2024-11-22 03:56:04,112 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2fc9da3/c829085c5eac408cb96080c528a4b72b [2024-11-22 03:56:04,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:56:04,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:56:04,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:56:04,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:56:04,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:56:04,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:56:04" (1/1) ... [2024-11-22 03:56:04,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45206729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:04, skipping insertion in model container [2024-11-22 03:56:04,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:56:04" (1/1) ... [2024-11-22 03:56:04,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:56:04,631 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label08.c[15510,15523] [2024-11-22 03:56:04,673 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label08.c[19017,19030] [2024-11-22 03:56:05,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:56:05,363 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:56:05,412 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label08.c[15510,15523] [2024-11-22 03:56:05,423 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label08.c[19017,19030] [2024-11-22 03:56:05,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:56:05,820 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:56:05,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05 WrapperNode [2024-11-22 03:56:05,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:56:05,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:56:05,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:56:05,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:56:05,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:05,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:06,214 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-11-22 03:56:06,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:56:06,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:56:06,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:56:06,215 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:56:06,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:06,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:06,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:06,549 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 03:56:06,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:06,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:06,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:06,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:06,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:06,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:07,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:56:07,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:56:07,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:56:07,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:56:07,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (1/1) ... [2024-11-22 03:56:07,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:56:07,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:56:07,106 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 03:56:07,113 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 03:56:07,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:56:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:56:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:56:07,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:56:07,278 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:56:07,279 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:56:11,790 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-22 03:56:11,791 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:56:11,837 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:56:11,837 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 03:56:11,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:56:11 BoogieIcfgContainer [2024-11-22 03:56:11,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:56:11,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:56:11,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:56:11,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:56:11,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:56:04" (1/3) ... [2024-11-22 03:56:11,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac2e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:56:11, skipping insertion in model container [2024-11-22 03:56:11,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:56:05" (2/3) ... [2024-11-22 03:56:11,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac2e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:56:11, skipping insertion in model container [2024-11-22 03:56:11,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:56:11" (3/3) ... [2024-11-22 03:56:11,848 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label08.c [2024-11-22 03:56:11,866 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:56:11,867 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:56:11,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:56:11,972 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;@31c42b28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:56:11,972 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:56:11,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:11,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 03:56:11,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:11,992 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 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 03:56:11,993 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:12,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:12,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2028897015, now seen corresponding path program 1 times [2024-11-22 03:56:12,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:12,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427199233] [2024-11-22 03:56:12,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:12,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:12,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:12,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427199233] [2024-11-22 03:56:12,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427199233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:12,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:12,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 03:56:12,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198611825] [2024-11-22 03:56:12,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:12,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 03:56:12,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 03:56:12,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:56:12,328 INFO L87 Difference]: Start difference. First operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:12,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:12,478 INFO L93 Difference]: Finished difference Result 1784 states and 3386 transitions. [2024-11-22 03:56:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 03:56:12,483 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-22 03:56:12,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:12,508 INFO L225 Difference]: With dead ends: 1784 [2024-11-22 03:56:12,509 INFO L226 Difference]: Without dead ends: 850 [2024-11-22 03:56:12,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 03:56:12,523 INFO L432 NwaCegarLoop]: 1669 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, 1669 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 03:56:12,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-22 03:56:12,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-11-22 03:56:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.892688679245283) internal successors, (1605), 849 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:12,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1605 transitions. [2024-11-22 03:56:12,614 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1605 transitions. Word has length 26 [2024-11-22 03:56:12,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:12,614 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1605 transitions. [2024-11-22 03:56:12,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:12,615 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1605 transitions. [2024-11-22 03:56:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 03:56:12,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:12,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 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 03:56:12,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:56:12,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:12,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:12,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1448421831, now seen corresponding path program 1 times [2024-11-22 03:56:12,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:12,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332382576] [2024-11-22 03:56:12,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:12,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:12,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:12,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:12,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332382576] [2024-11-22 03:56:12,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332382576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:12,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:12,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:56:12,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899166442] [2024-11-22 03:56:12,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:12,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:56:12,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:12,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:56:12,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:56:12,961 INFO L87 Difference]: Start difference. First operand 850 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:13,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:13,080 INFO L93 Difference]: Finished difference Result 904 states and 1689 transitions. [2024-11-22 03:56:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:56:13,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-22 03:56:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:13,084 INFO L225 Difference]: With dead ends: 904 [2024-11-22 03:56:13,084 INFO L226 Difference]: Without dead ends: 850 [2024-11-22 03:56:13,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:56:13,087 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4764 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:13,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6367 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:56:13,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-22 03:56:13,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-11-22 03:56:13,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.8455188679245282) internal successors, (1565), 849 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:13,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1565 transitions. [2024-11-22 03:56:13,115 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1565 transitions. Word has length 26 [2024-11-22 03:56:13,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:13,116 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1565 transitions. [2024-11-22 03:56:13,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:13,116 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1565 transitions. [2024-11-22 03:56:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-22 03:56:13,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:13,118 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 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 03:56:13,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:56:13,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:13,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:13,120 INFO L85 PathProgramCache]: Analyzing trace with hash 498264813, now seen corresponding path program 1 times [2024-11-22 03:56:13,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:13,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078701986] [2024-11-22 03:56:13,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:13,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:13,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:13,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:13,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078701986] [2024-11-22 03:56:13,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078701986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:13,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:13,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 03:56:13,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602783874] [2024-11-22 03:56:13,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:13,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:13,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:13,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:13,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:13,215 INFO L87 Difference]: Start difference. First operand 850 states and 1565 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:16,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:16,448 INFO L93 Difference]: Finished difference Result 2354 states and 4438 transitions. [2024-11-22 03:56:16,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:16,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-22 03:56:16,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:16,458 INFO L225 Difference]: With dead ends: 2354 [2024-11-22 03:56:16,458 INFO L226 Difference]: Without dead ends: 1601 [2024-11-22 03:56:16,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 03:56:16,461 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 914 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:16,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 554 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-22 03:56:16,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-22 03:56:16,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2024-11-22 03:56:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1599 states have (on average 1.6210131332082551) internal successors, (2592), 1600 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2592 transitions. [2024-11-22 03:56:16,526 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2592 transitions. Word has length 30 [2024-11-22 03:56:16,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:16,527 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2592 transitions. [2024-11-22 03:56:16,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2592 transitions. [2024-11-22 03:56:16,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 03:56:16,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:16,530 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:16,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:56:16,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:16,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:16,531 INFO L85 PathProgramCache]: Analyzing trace with hash -295358701, now seen corresponding path program 1 times [2024-11-22 03:56:16,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:16,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422537414] [2024-11-22 03:56:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:16,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:16,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:16,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:16,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422537414] [2024-11-22 03:56:16,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422537414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:16,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:16,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:56:16,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819161212] [2024-11-22 03:56:16,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:16,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:56:16,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:16,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:56:16,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:56:16,793 INFO L87 Difference]: Start difference. First operand 1601 states and 2592 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:17,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:17,117 INFO L93 Difference]: Finished difference Result 2201 states and 3552 transitions. [2024-11-22 03:56:17,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 03:56:17,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-22 03:56:17,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:17,127 INFO L225 Difference]: With dead ends: 2201 [2024-11-22 03:56:17,127 INFO L226 Difference]: Without dead ends: 2151 [2024-11-22 03:56:17,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-22 03:56:17,132 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 9855 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9855 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:17,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9855 Valid, 3085 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:56:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2024-11-22 03:56:17,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1649. [2024-11-22 03:56:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1647 states have (on average 1.620522161505768) internal successors, (2669), 1648 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2669 transitions. [2024-11-22 03:56:17,176 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2669 transitions. Word has length 65 [2024-11-22 03:56:17,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:17,177 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2669 transitions. [2024-11-22 03:56:17,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2669 transitions. [2024-11-22 03:56:17,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 03:56:17,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:17,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:17,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:56:17,185 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:17,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:17,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1787564125, now seen corresponding path program 1 times [2024-11-22 03:56:17,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:17,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013224819] [2024-11-22 03:56:17,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:17,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:17,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:17,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:17,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013224819] [2024-11-22 03:56:17,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013224819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:17,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:17,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:17,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699054148] [2024-11-22 03:56:17,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:17,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:17,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:17,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:17,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:17,314 INFO L87 Difference]: Start difference. First operand 1649 states and 2669 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:17,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:17,355 INFO L93 Difference]: Finished difference Result 1834 states and 2964 transitions. [2024-11-22 03:56:17,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:17,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-22 03:56:17,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:17,363 INFO L225 Difference]: With dead ends: 1834 [2024-11-22 03:56:17,363 INFO L226 Difference]: Without dead ends: 1736 [2024-11-22 03:56:17,364 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 03:56:17,365 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 1492 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:17,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1634 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:17,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-22 03:56:17,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1732. [2024-11-22 03:56:17,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.6179190751445087) internal successors, (2799), 1731 states have internal predecessors, (2799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2799 transitions. [2024-11-22 03:56:17,403 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2799 transitions. Word has length 67 [2024-11-22 03:56:17,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:17,403 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2799 transitions. [2024-11-22 03:56:17,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2799 transitions. [2024-11-22 03:56:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 03:56:17,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:17,405 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:17,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:56:17,405 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:17,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:17,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1721070613, now seen corresponding path program 1 times [2024-11-22 03:56:17,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:17,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644352097] [2024-11-22 03:56:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:17,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:17,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:17,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644352097] [2024-11-22 03:56:17,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644352097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:17,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:17,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:56:17,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689135226] [2024-11-22 03:56:17,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:17,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:56:17,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:17,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:56:17,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:56:17,792 INFO L87 Difference]: Start difference. First operand 1732 states and 2799 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:18,098 INFO L93 Difference]: Finished difference Result 1915 states and 3087 transitions. [2024-11-22 03:56:18,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:56:18,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-22 03:56:18,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:18,106 INFO L225 Difference]: With dead ends: 1915 [2024-11-22 03:56:18,106 INFO L226 Difference]: Without dead ends: 1734 [2024-11-22 03:56:18,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-22 03:56:18,108 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 6020 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6020 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:18,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6020 Valid, 1940 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:56:18,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2024-11-22 03:56:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1732. [2024-11-22 03:56:18,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.6167630057803468) internal successors, (2797), 1731 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2797 transitions. [2024-11-22 03:56:18,143 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2797 transitions. Word has length 67 [2024-11-22 03:56:18,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:18,143 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2797 transitions. [2024-11-22 03:56:18,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2797 transitions. [2024-11-22 03:56:18,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 03:56:18,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:18,145 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:18,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:56:18,145 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:18,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:18,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2066662853, now seen corresponding path program 1 times [2024-11-22 03:56:18,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:18,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506133954] [2024-11-22 03:56:18,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:18,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:18,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:18,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506133954] [2024-11-22 03:56:18,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506133954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:18,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:18,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:56:18,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144344455] [2024-11-22 03:56:18,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:18,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:56:18,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:18,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:56:18,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:56:18,416 INFO L87 Difference]: Start difference. First operand 1732 states and 2797 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:18,468 INFO L93 Difference]: Finished difference Result 1740 states and 2806 transitions. [2024-11-22 03:56:18,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:56:18,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-22 03:56:18,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:18,476 INFO L225 Difference]: With dead ends: 1740 [2024-11-22 03:56:18,476 INFO L226 Difference]: Without dead ends: 1738 [2024-11-22 03:56:18,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:56:18,478 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 0 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:18,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-11-22 03:56:18,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2024-11-22 03:56:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1736 states have (on average 1.6140552995391706) internal successors, (2802), 1737 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2802 transitions. [2024-11-22 03:56:18,517 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2802 transitions. Word has length 68 [2024-11-22 03:56:18,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:18,518 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2802 transitions. [2024-11-22 03:56:18,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2802 transitions. [2024-11-22 03:56:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:56:18,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:18,519 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:18,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:56:18,519 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:18,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:18,520 INFO L85 PathProgramCache]: Analyzing trace with hash 279342091, now seen corresponding path program 1 times [2024-11-22 03:56:18,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:18,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686651731] [2024-11-22 03:56:18,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:18,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:18,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:18,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:18,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686651731] [2024-11-22 03:56:18,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686651731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:18,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:18,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:18,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203618027] [2024-11-22 03:56:18,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:18,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:18,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:18,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:18,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:18,602 INFO L87 Difference]: Start difference. First operand 1738 states and 2802 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:18,643 INFO L93 Difference]: Finished difference Result 2096 states and 3354 transitions. [2024-11-22 03:56:18,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:18,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-22 03:56:18,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:18,652 INFO L225 Difference]: With dead ends: 2096 [2024-11-22 03:56:18,652 INFO L226 Difference]: Without dead ends: 1909 [2024-11-22 03:56:18,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:18,654 INFO L432 NwaCegarLoop]: 1612 mSDtfsCounter, 1505 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:18,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1701 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:18,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2024-11-22 03:56:18,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1907. [2024-11-22 03:56:18,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.6057742782152231) internal successors, (3059), 1906 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3059 transitions. [2024-11-22 03:56:18,698 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3059 transitions. Word has length 69 [2024-11-22 03:56:18,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:18,698 INFO L471 AbstractCegarLoop]: Abstraction has 1907 states and 3059 transitions. [2024-11-22 03:56:18,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3059 transitions. [2024-11-22 03:56:18,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:56:18,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:18,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:18,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:56:18,700 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:18,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:18,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1517604107, now seen corresponding path program 1 times [2024-11-22 03:56:18,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:18,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952888692] [2024-11-22 03:56:18,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:18,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:18,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:18,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:18,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952888692] [2024-11-22 03:56:18,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952888692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:18,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:18,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:18,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386273407] [2024-11-22 03:56:18,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:18,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:18,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:18,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:18,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:18,763 INFO L87 Difference]: Start difference. First operand 1907 states and 3059 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:18,798 INFO L93 Difference]: Finished difference Result 2587 states and 4097 transitions. [2024-11-22 03:56:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:18,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-22 03:56:18,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:18,808 INFO L225 Difference]: With dead ends: 2587 [2024-11-22 03:56:18,809 INFO L226 Difference]: Without dead ends: 2231 [2024-11-22 03:56:18,810 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 03:56:18,812 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 1503 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:18,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1703 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-11-22 03:56:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2229. [2024-11-22 03:56:18,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 2227 states have (on average 1.5900314324202964) internal successors, (3541), 2228 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3541 transitions. [2024-11-22 03:56:18,862 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3541 transitions. Word has length 69 [2024-11-22 03:56:18,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:18,862 INFO L471 AbstractCegarLoop]: Abstraction has 2229 states and 3541 transitions. [2024-11-22 03:56:18,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3541 transitions. [2024-11-22 03:56:18,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:56:18,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:18,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:18,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:56:18,863 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:18,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:18,863 INFO L85 PathProgramCache]: Analyzing trace with hash -697864693, now seen corresponding path program 1 times [2024-11-22 03:56:18,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:18,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287647937] [2024-11-22 03:56:18,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:18,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:18,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:18,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:18,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287647937] [2024-11-22 03:56:18,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287647937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:18,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:18,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:18,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624554398] [2024-11-22 03:56:18,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:18,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:18,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:18,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:18,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:18,934 INFO L87 Difference]: Start difference. First operand 2229 states and 3541 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:18,980 INFO L93 Difference]: Finished difference Result 3521 states and 5487 transitions. [2024-11-22 03:56:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:18,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-22 03:56:18,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:18,991 INFO L225 Difference]: With dead ends: 3521 [2024-11-22 03:56:18,992 INFO L226 Difference]: Without dead ends: 2843 [2024-11-22 03:56:18,994 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 03:56:18,995 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 1501 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:18,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1705 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:18,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-11-22 03:56:19,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2841. [2024-11-22 03:56:19,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 1.5642831983092638) internal successors, (4441), 2840 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:19,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4441 transitions. [2024-11-22 03:56:19,069 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4441 transitions. Word has length 69 [2024-11-22 03:56:19,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:19,070 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 4441 transitions. [2024-11-22 03:56:19,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:19,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4441 transitions. [2024-11-22 03:56:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:56:19,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:19,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:19,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:56:19,072 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:19,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:19,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1083068171, now seen corresponding path program 1 times [2024-11-22 03:56:19,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:19,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544913743] [2024-11-22 03:56:19,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:19,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:19,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:19,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544913743] [2024-11-22 03:56:19,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544913743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:19,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:19,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:19,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899690793] [2024-11-22 03:56:19,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:19,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:19,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:19,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:19,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:19,134 INFO L87 Difference]: Start difference. First operand 2841 states and 4441 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:19,218 INFO L93 Difference]: Finished difference Result 5293 states and 8075 transitions. [2024-11-22 03:56:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:19,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-22 03:56:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:19,233 INFO L225 Difference]: With dead ends: 5293 [2024-11-22 03:56:19,234 INFO L226 Difference]: Without dead ends: 4003 [2024-11-22 03:56:19,237 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 03:56:19,238 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 1499 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:19,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states. [2024-11-22 03:56:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 4001. [2024-11-22 03:56:19,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3999 states have (on average 1.52863215803951) internal successors, (6113), 4000 states have internal predecessors, (6113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 6113 transitions. [2024-11-22 03:56:19,348 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 6113 transitions. Word has length 69 [2024-11-22 03:56:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:19,348 INFO L471 AbstractCegarLoop]: Abstraction has 4001 states and 6113 transitions. [2024-11-22 03:56:19,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 6113 transitions. [2024-11-22 03:56:19,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:56:19,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:19,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:19,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:56:19,350 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:19,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash 15485707, now seen corresponding path program 1 times [2024-11-22 03:56:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:19,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827424890] [2024-11-22 03:56:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:19,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:19,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827424890] [2024-11-22 03:56:19,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827424890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:19,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:19,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:19,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171984766] [2024-11-22 03:56:19,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:19,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:19,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:19,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:19,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:19,414 INFO L87 Difference]: Start difference. First operand 4001 states and 6113 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:19,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:19,546 INFO L93 Difference]: Finished difference Result 8645 states and 12867 transitions. [2024-11-22 03:56:19,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:19,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-22 03:56:19,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:19,580 INFO L225 Difference]: With dead ends: 8645 [2024-11-22 03:56:19,580 INFO L226 Difference]: Without dead ends: 6195 [2024-11-22 03:56:19,590 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 03:56:19,591 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 1507 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:19,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:19,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6195 states. [2024-11-22 03:56:19,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6195 to 6193. [2024-11-22 03:56:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6191 states have (on average 1.4861896301082216) internal successors, (9201), 6192 states have internal predecessors, (9201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:19,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 9201 transitions. [2024-11-22 03:56:19,771 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 9201 transitions. Word has length 69 [2024-11-22 03:56:19,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:19,771 INFO L471 AbstractCegarLoop]: Abstraction has 6193 states and 9201 transitions. [2024-11-22 03:56:19,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 9201 transitions. [2024-11-22 03:56:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 03:56:19,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:19,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:19,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 03:56:19,773 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:19,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:19,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2036636858, now seen corresponding path program 1 times [2024-11-22 03:56:19,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:19,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972698225] [2024-11-22 03:56:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:19,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:19,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:19,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972698225] [2024-11-22 03:56:19,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972698225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:19,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:19,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:19,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577283164] [2024-11-22 03:56:19,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:19,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:19,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:19,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:19,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:19,852 INFO L87 Difference]: Start difference. First operand 6193 states and 9201 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:19,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:19,979 INFO L93 Difference]: Finished difference Result 11064 states and 16311 transitions. [2024-11-22 03:56:19,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:19,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-22 03:56:19,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:19,997 INFO L225 Difference]: With dead ends: 11064 [2024-11-22 03:56:19,997 INFO L226 Difference]: Without dead ends: 8437 [2024-11-22 03:56:20,004 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 03:56:20,006 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 1506 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:20,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:20,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2024-11-22 03:56:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 8435. [2024-11-22 03:56:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8435 states, 8433 states have (on average 1.4669749792481916) internal successors, (12371), 8434 states have internal predecessors, (12371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:20,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8435 states to 8435 states and 12371 transitions. [2024-11-22 03:56:20,236 INFO L78 Accepts]: Start accepts. Automaton has 8435 states and 12371 transitions. Word has length 71 [2024-11-22 03:56:20,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:20,236 INFO L471 AbstractCegarLoop]: Abstraction has 8435 states and 12371 transitions. [2024-11-22 03:56:20,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 8435 states and 12371 transitions. [2024-11-22 03:56:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:56:20,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:20,239 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:20,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 03:56:20,240 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:20,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:20,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1790597010, now seen corresponding path program 1 times [2024-11-22 03:56:20,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:20,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851600592] [2024-11-22 03:56:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:20,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 03:56:20,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:20,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851600592] [2024-11-22 03:56:20,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851600592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:20,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:20,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:56:20,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093559730] [2024-11-22 03:56:20,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:20,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:56:20,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:20,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:56:20,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:56:20,435 INFO L87 Difference]: Start difference. First operand 8435 states and 12371 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:21,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:21,332 INFO L93 Difference]: Finished difference Result 51169 states and 73498 transitions. [2024-11-22 03:56:21,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:56:21,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-22 03:56:21,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:21,436 INFO L225 Difference]: With dead ends: 51169 [2024-11-22 03:56:21,436 INFO L226 Difference]: Without dead ends: 44287 [2024-11-22 03:56:21,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:56:21,461 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8109 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8109 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:21,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8109 Valid, 3868 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:56:21,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44287 states. [2024-11-22 03:56:22,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44287 to 15315. [2024-11-22 03:56:22,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15315 states, 15313 states have (on average 1.4452426043231241) internal successors, (22131), 15314 states have internal predecessors, (22131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15315 states to 15315 states and 22131 transitions. [2024-11-22 03:56:22,088 INFO L78 Accepts]: Start accepts. Automaton has 15315 states and 22131 transitions. Word has length 90 [2024-11-22 03:56:22,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:22,089 INFO L471 AbstractCegarLoop]: Abstraction has 15315 states and 22131 transitions. [2024-11-22 03:56:22,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:22,089 INFO L276 IsEmpty]: Start isEmpty. Operand 15315 states and 22131 transitions. [2024-11-22 03:56:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:56:22,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:22,093 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:22,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 03:56:22,094 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:22,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:22,094 INFO L85 PathProgramCache]: Analyzing trace with hash -552334994, now seen corresponding path program 1 times [2024-11-22 03:56:22,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:22,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619637244] [2024-11-22 03:56:22,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:22,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 03:56:22,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:22,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619637244] [2024-11-22 03:56:22,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619637244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:22,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:22,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:56:22,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497840296] [2024-11-22 03:56:22,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:22,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:56:22,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:22,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:56:22,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:56:22,290 INFO L87 Difference]: Start difference. First operand 15315 states and 22131 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:23,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:23,439 INFO L93 Difference]: Finished difference Result 58049 states and 83258 transitions. [2024-11-22 03:56:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:56:23,440 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-22 03:56:23,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:23,559 INFO L225 Difference]: With dead ends: 58049 [2024-11-22 03:56:23,560 INFO L226 Difference]: Without dead ends: 51167 [2024-11-22 03:56:23,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:56:23,590 INFO L432 NwaCegarLoop]: 1639 mSDtfsCounter, 8154 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8154 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:23,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8154 Valid, 3817 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:56:23,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51167 states. [2024-11-22 03:56:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51167 to 25651. [2024-11-22 03:56:24,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25651 states, 25649 states have (on average 1.4305041132207883) internal successors, (36691), 25650 states have internal predecessors, (36691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:24,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25651 states to 25651 states and 36691 transitions. [2024-11-22 03:56:24,861 INFO L78 Accepts]: Start accepts. Automaton has 25651 states and 36691 transitions. Word has length 90 [2024-11-22 03:56:24,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:24,862 INFO L471 AbstractCegarLoop]: Abstraction has 25651 states and 36691 transitions. [2024-11-22 03:56:24,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:24,862 INFO L276 IsEmpty]: Start isEmpty. Operand 25651 states and 36691 transitions. [2024-11-22 03:56:24,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:56:24,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:24,867 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:24,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 03:56:24,867 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:24,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:24,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1527163502, now seen corresponding path program 1 times [2024-11-22 03:56:24,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:24,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123611292] [2024-11-22 03:56:24,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:24,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 03:56:25,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:25,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123611292] [2024-11-22 03:56:25,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123611292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:25,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:25,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:56:25,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041732099] [2024-11-22 03:56:25,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:25,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:56:25,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:25,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:56:25,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:56:25,066 INFO L87 Difference]: Start difference. First operand 25651 states and 36691 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:26,020 INFO L93 Difference]: Finished difference Result 64929 states and 93018 transitions. [2024-11-22 03:56:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:56:26,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-22 03:56:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:26,137 INFO L225 Difference]: With dead ends: 64929 [2024-11-22 03:56:26,137 INFO L226 Difference]: Without dead ends: 58047 [2024-11-22 03:56:26,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:56:26,150 INFO L432 NwaCegarLoop]: 1636 mSDtfsCounter, 8208 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8208 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:26,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8208 Valid, 3797 Invalid, 124 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:56:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58047 states. [2024-11-22 03:56:27,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58047 to 32531. [2024-11-22 03:56:27,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32531 states, 32529 states have (on average 1.4279873343785545) internal successors, (46451), 32530 states have internal predecessors, (46451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:27,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32531 states to 32531 states and 46451 transitions. [2024-11-22 03:56:27,351 INFO L78 Accepts]: Start accepts. Automaton has 32531 states and 46451 transitions. Word has length 90 [2024-11-22 03:56:27,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:27,352 INFO L471 AbstractCegarLoop]: Abstraction has 32531 states and 46451 transitions. [2024-11-22 03:56:27,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:27,352 INFO L276 IsEmpty]: Start isEmpty. Operand 32531 states and 46451 transitions. [2024-11-22 03:56:27,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:56:27,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:27,356 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:27,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 03:56:27,357 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:27,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:27,357 INFO L85 PathProgramCache]: Analyzing trace with hash -986870930, now seen corresponding path program 1 times [2024-11-22 03:56:27,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:27,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483383697] [2024-11-22 03:56:27,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:27,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 03:56:27,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:27,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483383697] [2024-11-22 03:56:27,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483383697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:27,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:27,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:56:27,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837819178] [2024-11-22 03:56:27,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:27,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:56:27,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:27,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:56:27,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:56:27,635 INFO L87 Difference]: Start difference. First operand 32531 states and 46451 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:28,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:28,828 INFO L93 Difference]: Finished difference Result 71809 states and 102778 transitions. [2024-11-22 03:56:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:56:28,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-22 03:56:28,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:29,092 INFO L225 Difference]: With dead ends: 71809 [2024-11-22 03:56:29,093 INFO L226 Difference]: Without dead ends: 64927 [2024-11-22 03:56:29,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:56:29,119 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 8112 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8112 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:29,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8112 Valid, 3888 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:56:29,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64927 states. [2024-11-22 03:56:30,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64927 to 39411. [2024-11-22 03:56:30,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39411 states, 39409 states have (on average 1.4263493110710752) internal successors, (56211), 39410 states have internal predecessors, (56211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:30,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39411 states to 39411 states and 56211 transitions. [2024-11-22 03:56:30,287 INFO L78 Accepts]: Start accepts. Automaton has 39411 states and 56211 transitions. Word has length 90 [2024-11-22 03:56:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:30,289 INFO L471 AbstractCegarLoop]: Abstraction has 39411 states and 56211 transitions. [2024-11-22 03:56:30,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 39411 states and 56211 transitions. [2024-11-22 03:56:30,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:56:30,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:30,298 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:30,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 03:56:30,298 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:30,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:30,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2054453394, now seen corresponding path program 1 times [2024-11-22 03:56:30,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:30,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265325709] [2024-11-22 03:56:30,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:30,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 03:56:30,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:30,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265325709] [2024-11-22 03:56:30,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265325709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:30,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:30,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:56:30,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823407460] [2024-11-22 03:56:30,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:30,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:56:30,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:30,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:56:30,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:56:30,495 INFO L87 Difference]: Start difference. First operand 39411 states and 56211 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:31,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:31,995 INFO L93 Difference]: Finished difference Result 78689 states and 112538 transitions. [2024-11-22 03:56:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:56:31,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-22 03:56:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:32,166 INFO L225 Difference]: With dead ends: 78689 [2024-11-22 03:56:32,166 INFO L226 Difference]: Without dead ends: 71807 [2024-11-22 03:56:32,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:56:32,195 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8044 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8044 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:32,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8044 Valid, 4067 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:56:32,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71807 states. [2024-11-22 03:56:33,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71807 to 46291. [2024-11-22 03:56:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46291 states, 46289 states have (on average 1.4251982112380912) internal successors, (65971), 46290 states have internal predecessors, (65971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:33,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46291 states to 46291 states and 65971 transitions. [2024-11-22 03:56:33,607 INFO L78 Accepts]: Start accepts. Automaton has 46291 states and 65971 transitions. Word has length 90 [2024-11-22 03:56:33,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:33,610 INFO L471 AbstractCegarLoop]: Abstraction has 46291 states and 65971 transitions. [2024-11-22 03:56:33,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:33,610 INFO L276 IsEmpty]: Start isEmpty. Operand 46291 states and 65971 transitions. [2024-11-22 03:56:33,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 03:56:33,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:33,616 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:33,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 03:56:33,617 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:33,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:33,617 INFO L85 PathProgramCache]: Analyzing trace with hash 168958598, now seen corresponding path program 1 times [2024-11-22 03:56:33,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:33,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235871997] [2024-11-22 03:56:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:33,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:33,913 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:33,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:33,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235871997] [2024-11-22 03:56:33,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235871997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:33,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:33,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:33,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949198353] [2024-11-22 03:56:33,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:33,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:33,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:33,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:33,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:33,916 INFO L87 Difference]: Start difference. First operand 46291 states and 65971 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:34,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:34,782 INFO L93 Difference]: Finished difference Result 77933 states and 111340 transitions. [2024-11-22 03:56:34,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:34,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-22 03:56:34,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:34,839 INFO L225 Difference]: With dead ends: 77933 [2024-11-22 03:56:34,839 INFO L226 Difference]: Without dead ends: 33195 [2024-11-22 03:56:34,879 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 03:56:34,880 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 58 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:34,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33195 states. [2024-11-22 03:56:35,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33195 to 33193. [2024-11-22 03:56:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33193 states, 33191 states have (on average 1.4300563405742521) internal successors, (47465), 33192 states have internal predecessors, (47465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:35,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33193 states to 33193 states and 47465 transitions. [2024-11-22 03:56:35,745 INFO L78 Accepts]: Start accepts. Automaton has 33193 states and 47465 transitions. Word has length 92 [2024-11-22 03:56:35,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:35,745 INFO L471 AbstractCegarLoop]: Abstraction has 33193 states and 47465 transitions. [2024-11-22 03:56:35,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:35,745 INFO L276 IsEmpty]: Start isEmpty. Operand 33193 states and 47465 transitions. [2024-11-22 03:56:35,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 03:56:35,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:35,747 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:35,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 03:56:35,748 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:35,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:35,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1616712425, now seen corresponding path program 1 times [2024-11-22 03:56:35,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:35,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085891633] [2024-11-22 03:56:35,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:35,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:35,934 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 03:56:35,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:35,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085891633] [2024-11-22 03:56:35,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085891633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:35,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:35,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:56:35,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334435022] [2024-11-22 03:56:35,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:35,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:56:35,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:35,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:56:35,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:56:35,938 INFO L87 Difference]: Start difference. First operand 33193 states and 47465 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:37,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:37,403 INFO L93 Difference]: Finished difference Result 62391 states and 89328 transitions. [2024-11-22 03:56:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:56:37,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-22 03:56:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:37,488 INFO L225 Difference]: With dead ends: 62391 [2024-11-22 03:56:37,488 INFO L226 Difference]: Without dead ends: 57525 [2024-11-22 03:56:37,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:56:37,505 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8058 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8058 SdHoareTripleChecker+Valid, 3984 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:37,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8058 Valid, 3984 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:56:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57525 states. [2024-11-22 03:56:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57525 to 38057. [2024-11-22 03:56:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38057 states, 38055 states have (on average 1.4289055314676127) internal successors, (54377), 38056 states have internal predecessors, (54377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:38,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38057 states to 38057 states and 54377 transitions. [2024-11-22 03:56:38,555 INFO L78 Accepts]: Start accepts. Automaton has 38057 states and 54377 transitions. Word has length 92 [2024-11-22 03:56:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:38,555 INFO L471 AbstractCegarLoop]: Abstraction has 38057 states and 54377 transitions. [2024-11-22 03:56:38,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 38057 states and 54377 transitions. [2024-11-22 03:56:38,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 03:56:38,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:38,559 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:38,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 03:56:38,559 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:38,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:38,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1117757048, now seen corresponding path program 1 times [2024-11-22 03:56:38,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:38,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625519420] [2024-11-22 03:56:38,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:38,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:38,675 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:38,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:38,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625519420] [2024-11-22 03:56:38,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625519420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:38,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:38,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:38,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466423619] [2024-11-22 03:56:38,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:38,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:38,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:38,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:38,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:38,678 INFO L87 Difference]: Start difference. First operand 38057 states and 54377 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:39,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:39,322 INFO L93 Difference]: Finished difference Result 56301 states and 80299 transitions. [2024-11-22 03:56:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:39,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-22 03:56:39,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:39,348 INFO L225 Difference]: With dead ends: 56301 [2024-11-22 03:56:39,348 INFO L226 Difference]: Without dead ends: 19819 [2024-11-22 03:56:39,374 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 03:56:39,375 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:39,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:39,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19819 states. [2024-11-22 03:56:40,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19819 to 19817. [2024-11-22 03:56:40,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19817 states, 19815 states have (on average 1.4240222053999496) internal successors, (28217), 19816 states have internal predecessors, (28217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19817 states to 19817 states and 28217 transitions. [2024-11-22 03:56:40,108 INFO L78 Accepts]: Start accepts. Automaton has 19817 states and 28217 transitions. Word has length 93 [2024-11-22 03:56:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:40,108 INFO L471 AbstractCegarLoop]: Abstraction has 19817 states and 28217 transitions. [2024-11-22 03:56:40,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 19817 states and 28217 transitions. [2024-11-22 03:56:40,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 03:56:40,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:40,111 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:40,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 03:56:40,111 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:40,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:40,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1320571018, now seen corresponding path program 1 times [2024-11-22 03:56:40,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:40,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675488879] [2024-11-22 03:56:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:40,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:40,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:40,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675488879] [2024-11-22 03:56:40,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675488879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:40,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:40,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:40,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126769904] [2024-11-22 03:56:40,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:40,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:40,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:40,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:40,227 INFO L87 Difference]: Start difference. First operand 19817 states and 28217 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:40,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:40,471 INFO L93 Difference]: Finished difference Result 28941 states and 41059 transitions. [2024-11-22 03:56:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:40,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-22 03:56:40,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:40,490 INFO L225 Difference]: With dead ends: 28941 [2024-11-22 03:56:40,491 INFO L226 Difference]: Without dead ends: 10699 [2024-11-22 03:56:40,507 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 03:56:40,507 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 50 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:40,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:40,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10699 states. [2024-11-22 03:56:40,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10699 to 10697. [2024-11-22 03:56:40,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10697 states, 10695 states have (on average 1.4265544647031323) internal successors, (15257), 10696 states have internal predecessors, (15257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:40,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10697 states to 10697 states and 15257 transitions. [2024-11-22 03:56:40,911 INFO L78 Accepts]: Start accepts. Automaton has 10697 states and 15257 transitions. Word has length 95 [2024-11-22 03:56:40,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:40,911 INFO L471 AbstractCegarLoop]: Abstraction has 10697 states and 15257 transitions. [2024-11-22 03:56:40,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:40,911 INFO L276 IsEmpty]: Start isEmpty. Operand 10697 states and 15257 transitions. [2024-11-22 03:56:40,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 03:56:40,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:40,914 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:40,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 03:56:40,914 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:40,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:40,915 INFO L85 PathProgramCache]: Analyzing trace with hash -969080548, now seen corresponding path program 1 times [2024-11-22 03:56:40,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:40,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848721833] [2024-11-22 03:56:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:40,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:41,026 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:41,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:41,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848721833] [2024-11-22 03:56:41,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848721833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:41,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:41,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:41,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107226018] [2024-11-22 03:56:41,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:41,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:41,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:41,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:41,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:41,028 INFO L87 Difference]: Start difference. First operand 10697 states and 15257 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:41,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:41,164 INFO L93 Difference]: Finished difference Result 15261 states and 21619 transitions. [2024-11-22 03:56:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:41,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-22 03:56:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:41,176 INFO L225 Difference]: With dead ends: 15261 [2024-11-22 03:56:41,176 INFO L226 Difference]: Without dead ends: 6139 [2024-11-22 03:56:41,184 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 03:56:41,187 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 47 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:41,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:41,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2024-11-22 03:56:41,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6137. [2024-11-22 03:56:41,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6137 states, 6135 states have (on average 1.4404237978810106) internal successors, (8837), 6136 states have internal predecessors, (8837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:41,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 8837 transitions. [2024-11-22 03:56:41,301 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 8837 transitions. Word has length 97 [2024-11-22 03:56:41,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:41,301 INFO L471 AbstractCegarLoop]: Abstraction has 6137 states and 8837 transitions. [2024-11-22 03:56:41,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 8837 transitions. [2024-11-22 03:56:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-22 03:56:41,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:41,303 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:41,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 03:56:41,303 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:41,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:41,304 INFO L85 PathProgramCache]: Analyzing trace with hash -83832786, now seen corresponding path program 1 times [2024-11-22 03:56:41,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:41,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243230941] [2024-11-22 03:56:41,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:41,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:41,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:41,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243230941] [2024-11-22 03:56:41,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243230941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:41,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:41,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:41,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718445480] [2024-11-22 03:56:41,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:41,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:41,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:41,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:41,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:41,412 INFO L87 Difference]: Start difference. First operand 6137 states and 8837 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:41,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:41,491 INFO L93 Difference]: Finished difference Result 8421 states and 11989 transitions. [2024-11-22 03:56:41,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:41,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-22 03:56:41,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:41,498 INFO L225 Difference]: With dead ends: 8421 [2024-11-22 03:56:41,499 INFO L226 Difference]: Without dead ends: 3859 [2024-11-22 03:56:41,502 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 03:56:41,504 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:41,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:41,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2024-11-22 03:56:41,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3857. [2024-11-22 03:56:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3857 states, 3855 states have (on average 1.467444876783398) internal successors, (5657), 3856 states have internal predecessors, (5657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:41,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 5657 transitions. [2024-11-22 03:56:41,643 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 5657 transitions. Word has length 99 [2024-11-22 03:56:41,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:41,643 INFO L471 AbstractCegarLoop]: Abstraction has 3857 states and 5657 transitions. [2024-11-22 03:56:41,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 5657 transitions. [2024-11-22 03:56:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:56:41,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:41,644 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:41,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 03:56:41,644 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:41,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:41,645 INFO L85 PathProgramCache]: Analyzing trace with hash -709435968, now seen corresponding path program 1 times [2024-11-22 03:56:41,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:41,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539948995] [2024-11-22 03:56:41,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:41,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:41,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:41,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539948995] [2024-11-22 03:56:41,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539948995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:41,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:41,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:56:41,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124311023] [2024-11-22 03:56:41,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:41,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:41,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:41,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:41,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:41,745 INFO L87 Difference]: Start difference. First operand 3857 states and 5657 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:41,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:41,797 INFO L93 Difference]: Finished difference Result 5001 states and 7219 transitions. [2024-11-22 03:56:41,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:41,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-22 03:56:41,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:41,803 INFO L225 Difference]: With dead ends: 5001 [2024-11-22 03:56:41,803 INFO L226 Difference]: Without dead ends: 2719 [2024-11-22 03:56:41,805 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 03:56:41,806 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:41,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:56:41,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2024-11-22 03:56:41,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2717. [2024-11-22 03:56:41,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2715 states have (on average 1.503499079189687) internal successors, (4082), 2716 states have internal predecessors, (4082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:41,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 4082 transitions. [2024-11-22 03:56:41,850 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 4082 transitions. Word has length 101 [2024-11-22 03:56:41,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:41,850 INFO L471 AbstractCegarLoop]: Abstraction has 2717 states and 4082 transitions. [2024-11-22 03:56:41,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:41,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 4082 transitions. [2024-11-22 03:56:41,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:56:41,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:41,852 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:41,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 03:56:41,852 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:41,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:41,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1766403438, now seen corresponding path program 1 times [2024-11-22 03:56:41,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:41,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939408638] [2024-11-22 03:56:41,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:41,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 03:56:41,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:41,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939408638] [2024-11-22 03:56:41,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939408638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:56:41,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:56:41,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 03:56:41,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208335745] [2024-11-22 03:56:41,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:56:41,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:56:41,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:56:41,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:56:41,923 INFO L87 Difference]: Start difference. First operand 2717 states and 4082 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:44,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:44,533 INFO L93 Difference]: Finished difference Result 5723 states and 9009 transitions. [2024-11-22 03:56:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:56:44,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-22 03:56:44,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:44,540 INFO L225 Difference]: With dead ends: 5723 [2024-11-22 03:56:44,540 INFO L226 Difference]: Without dead ends: 4219 [2024-11-22 03:56:44,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 03:56:44,543 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 851 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:44,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 601 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-22 03:56:44,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4219 states. [2024-11-22 03:56:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4219 to 4219. [2024-11-22 03:56:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4219 states, 4217 states have (on average 1.3995731562722313) internal successors, (5902), 4218 states have internal predecessors, (5902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 5902 transitions. [2024-11-22 03:56:44,612 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 5902 transitions. Word has length 101 [2024-11-22 03:56:44,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:44,613 INFO L471 AbstractCegarLoop]: Abstraction has 4219 states and 5902 transitions. [2024-11-22 03:56:44,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:44,613 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 5902 transitions. [2024-11-22 03:56:44,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 03:56:44,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:44,615 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:44,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 03:56:44,616 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:44,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:44,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1744587218, now seen corresponding path program 1 times [2024-11-22 03:56:44,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:44,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678671892] [2024-11-22 03:56:44,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:44,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:45,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:45,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678671892] [2024-11-22 03:56:45,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678671892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:56:45,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388672775] [2024-11-22 03:56:45,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:45,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:56:45,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:56:45,493 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 03:56:45,495 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 03:56:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:45,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-22 03:56:45,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:56:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:46,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:56:46,432 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:46,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388672775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:56:46,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:56:46,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 6] total 22 [2024-11-22 03:56:46,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800192698] [2024-11-22 03:56:46,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:56:46,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 03:56:46,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:46,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 03:56:46,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-22 03:56:46,434 INFO L87 Difference]: Start difference. First operand 4219 states and 5902 transitions. Second operand has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:50,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:50,391 INFO L93 Difference]: Finished difference Result 14945 states and 20284 transitions. [2024-11-22 03:56:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-22 03:56:50,392 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-22 03:56:50,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:50,407 INFO L225 Difference]: With dead ends: 14945 [2024-11-22 03:56:50,407 INFO L226 Difference]: Without dead ends: 13705 [2024-11-22 03:56:50,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2880 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1313, Invalid=7243, Unknown=0, NotChecked=0, Total=8556 [2024-11-22 03:56:50,414 INFO L432 NwaCegarLoop]: 1546 mSDtfsCounter, 16963 mSDsluCounter, 9675 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16963 SdHoareTripleChecker+Valid, 11221 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:50,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16963 Valid, 11221 Invalid, 2023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 03:56:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13705 states. [2024-11-22 03:56:50,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13705 to 12975. [2024-11-22 03:56:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12975 states, 12973 states have (on average 1.346951360517999) internal successors, (17474), 12974 states have internal predecessors, (17474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12975 states to 12975 states and 17474 transitions. [2024-11-22 03:56:50,835 INFO L78 Accepts]: Start accepts. Automaton has 12975 states and 17474 transitions. Word has length 103 [2024-11-22 03:56:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:50,836 INFO L471 AbstractCegarLoop]: Abstraction has 12975 states and 17474 transitions. [2024-11-22 03:56:50,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:50,836 INFO L276 IsEmpty]: Start isEmpty. Operand 12975 states and 17474 transitions. [2024-11-22 03:56:50,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 03:56:50,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:50,837 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:50,844 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 03:56:51,038 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,SelfDestructingSolverStorable26 [2024-11-22 03:56:51,038 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:51,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:51,039 INFO L85 PathProgramCache]: Analyzing trace with hash -520471001, now seen corresponding path program 1 times [2024-11-22 03:56:51,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:51,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603800294] [2024-11-22 03:56:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:51,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:52,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:52,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603800294] [2024-11-22 03:56:52,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603800294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:56:52,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918771303] [2024-11-22 03:56:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:52,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:56:52,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:56:52,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:56:52,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 03:56:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:52,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 03:56:52,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:56:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:52,681 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:56:53,922 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:53,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918771303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:56:53,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:56:53,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-22 03:56:53,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70409302] [2024-11-22 03:56:53,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:56:53,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-22 03:56:53,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:53,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-22 03:56:53,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2024-11-22 03:56:53,926 INFO L87 Difference]: Start difference. First operand 12975 states and 17474 transitions. Second operand has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:56,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:56:56,060 INFO L93 Difference]: Finished difference Result 50169 states and 66582 transitions. [2024-11-22 03:56:56,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 03:56:56,061 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-22 03:56:56,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:56:56,105 INFO L225 Difference]: With dead ends: 50169 [2024-11-22 03:56:56,105 INFO L226 Difference]: Without dead ends: 40415 [2024-11-22 03:56:56,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2024-11-22 03:56:56,117 INFO L432 NwaCegarLoop]: 1524 mSDtfsCounter, 26205 mSDsluCounter, 5128 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26205 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:56:56,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26205 Valid, 6652 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:56:56,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40415 states. [2024-11-22 03:56:57,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40415 to 40195. [2024-11-22 03:56:57,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40195 states, 40193 states have (on average 1.320453810364989) internal successors, (53073), 40194 states have internal predecessors, (53073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40195 states to 40195 states and 53073 transitions. [2024-11-22 03:56:57,452 INFO L78 Accepts]: Start accepts. Automaton has 40195 states and 53073 transitions. Word has length 104 [2024-11-22 03:56:57,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:56:57,453 INFO L471 AbstractCegarLoop]: Abstraction has 40195 states and 53073 transitions. [2024-11-22 03:56:57,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:56:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 40195 states and 53073 transitions. [2024-11-22 03:56:57,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 03:56:57,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:56:57,455 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:57,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 03:56:57,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-22 03:56:57,656 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:56:57,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:56:57,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1922015015, now seen corresponding path program 1 times [2024-11-22 03:56:57,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:56:57,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252045985] [2024-11-22 03:56:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:57,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:56:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:58,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:56:58,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252045985] [2024-11-22 03:56:58,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252045985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:56:58,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454366275] [2024-11-22 03:56:58,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:56:58,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:56:58,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:56:58,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:56:58,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 03:56:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:56:58,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 03:56:58,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:56:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:58,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:56:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:59,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454366275] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:56:59,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:56:59,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 26 [2024-11-22 03:56:59,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889857910] [2024-11-22 03:56:59,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:56:59,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-22 03:56:59,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:56:59,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-22 03:56:59,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-11-22 03:56:59,814 INFO L87 Difference]: Start difference. First operand 40195 states and 53073 transitions. Second operand has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:57:01,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:57:01,599 INFO L93 Difference]: Finished difference Result 76327 states and 100614 transitions. [2024-11-22 03:57:01,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 03:57:01,599 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-22 03:57:01,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:57:01,645 INFO L225 Difference]: With dead ends: 76327 [2024-11-22 03:57:01,646 INFO L226 Difference]: Without dead ends: 41423 [2024-11-22 03:57:01,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2024-11-22 03:57:01,659 INFO L432 NwaCegarLoop]: 1526 mSDtfsCounter, 15638 mSDsluCounter, 6419 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15638 SdHoareTripleChecker+Valid, 7945 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:57:01,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15638 Valid, 7945 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:57:01,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41423 states. [2024-11-22 03:57:02,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41423 to 38951. [2024-11-22 03:57:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38951 states, 38949 states have (on average 1.3074790110144034) internal successors, (50925), 38950 states have internal predecessors, (50925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:57:02,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38951 states to 38951 states and 50925 transitions. [2024-11-22 03:57:02,903 INFO L78 Accepts]: Start accepts. Automaton has 38951 states and 50925 transitions. Word has length 104 [2024-11-22 03:57:02,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:57:02,904 INFO L471 AbstractCegarLoop]: Abstraction has 38951 states and 50925 transitions. [2024-11-22 03:57:02,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:57:02,904 INFO L276 IsEmpty]: Start isEmpty. Operand 38951 states and 50925 transitions. [2024-11-22 03:57:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 03:57:02,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:57:02,905 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:02,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 03:57:03,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-22 03:57:03,106 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:57:03,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:57:03,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1393813607, now seen corresponding path program 1 times [2024-11-22 03:57:03,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:57:03,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575521961] [2024-11-22 03:57:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:57:03,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:57:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:57:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:57:04,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:57:04,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575521961] [2024-11-22 03:57:04,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575521961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:57:04,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877725756] [2024-11-22 03:57:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:57:04,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:57:04,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:57:04,010 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:57:04,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 03:57:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:57:04,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 03:57:04,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:57:04,591 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:57:04,591 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:57:05,443 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:57:05,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877725756] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:57:05,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:57:05,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-22 03:57:05,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931789369] [2024-11-22 03:57:05,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:57:05,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-22 03:57:05,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:57:05,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-22 03:57:05,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-11-22 03:57:05,446 INFO L87 Difference]: Start difference. First operand 38951 states and 50925 transitions. Second operand has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:57:09,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:57:09,493 INFO L93 Difference]: Finished difference Result 114767 states and 149709 transitions. [2024-11-22 03:57:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-22 03:57:09,494 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-22 03:57:09,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:57:09,583 INFO L225 Difference]: With dead ends: 114767 [2024-11-22 03:57:09,583 INFO L226 Difference]: Without dead ends: 79019 [2024-11-22 03:57:09,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=697, Invalid=2963, Unknown=0, NotChecked=0, Total=3660 [2024-11-22 03:57:09,600 INFO L432 NwaCegarLoop]: 1514 mSDtfsCounter, 19252 mSDsluCounter, 5300 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19252 SdHoareTripleChecker+Valid, 6814 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:57:09,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19252 Valid, 6814 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:57:09,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79019 states. [2024-11-22 03:57:11,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79019 to 72847. [2024-11-22 03:57:11,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72847 states, 72845 states have (on average 1.2815292744869242) internal successors, (93353), 72846 states have internal predecessors, (93353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:57:12,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72847 states to 72847 states and 93353 transitions. [2024-11-22 03:57:12,075 INFO L78 Accepts]: Start accepts. Automaton has 72847 states and 93353 transitions. Word has length 104 [2024-11-22 03:57:12,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:57:12,075 INFO L471 AbstractCegarLoop]: Abstraction has 72847 states and 93353 transitions. [2024-11-22 03:57:12,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:57:12,076 INFO L276 IsEmpty]: Start isEmpty. Operand 72847 states and 93353 transitions. [2024-11-22 03:57:12,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 03:57:12,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:57:12,079 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:12,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 03:57:12,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:57:12,279 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:57:12,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:57:12,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1936381980, now seen corresponding path program 1 times [2024-11-22 03:57:12,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:57:12,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462006661] [2024-11-22 03:57:12,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:57:12,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:57:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:57:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:57:12,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:57:12,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462006661] [2024-11-22 03:57:12,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462006661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:57:12,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:57:12,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 03:57:12,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272218924] [2024-11-22 03:57:12,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:57:12,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:57:12,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:57:12,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:57:12,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:57:12,345 INFO L87 Difference]: Start difference. First operand 72847 states and 93353 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)