./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem17_label31.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 af3862af5b8a27b2989fe566f1104f15a4544b51e9167db28055ff534e84b220 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:52:58,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:52:58,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:52:58,896 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:52:58,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:52:58,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:52:58,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:52:58,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:52:58,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:52:58,922 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:52:58,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:52:58,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:52:58,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:52:58,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:52:58,924 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:52:58,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:52:58,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:52:58,925 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:52:58,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:52:58,926 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:52:58,926 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:52:58,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:52:58,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:52:58,927 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:52:58,927 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:52:58,927 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:52:58,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:52:58,928 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:52:58,928 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:52:58,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:52:58,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:52:58,928 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:52:58,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:52:58,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:52:58,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:52:58,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:52:58,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:52:58,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:52:58,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:52:58,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:52:58,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:52:58,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:52:58,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af3862af5b8a27b2989fe566f1104f15a4544b51e9167db28055ff534e84b220 [2024-11-09 19:52:59,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:52:59,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:52:59,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:52:59,148 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:52:59,148 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:52:59,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label31.c [2024-11-09 19:53:00,321 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:53:00,621 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:53:00,622 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label31.c [2024-11-09 19:53:00,640 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5ae8d2e/385331ff1c6f4eddb87730deef0929c6/FLAG94070ff80 [2024-11-09 19:53:00,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5ae8d2e/385331ff1c6f4eddb87730deef0929c6 [2024-11-09 19:53:00,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:53:00,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:53:00,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:53:00,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:53:00,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:53:00,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:53:00" (1/1) ... [2024-11-09 19:53:00,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb78110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:00, skipping insertion in model container [2024-11-09 19:53:00,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:53:00" (1/1) ... [2024-11-09 19:53:00,957 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:53:01,132 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/eca-rers2012/Problem17_label31.c[1403,1416] [2024-11-09 19:53:01,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:53:01,550 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:53:01,562 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/eca-rers2012/Problem17_label31.c[1403,1416] [2024-11-09 19:53:01,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:53:01,788 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:53:01,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01 WrapperNode [2024-11-09 19:53:01,789 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:53:01,790 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:53:01,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:53:01,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:53:01,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:01,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:01,965 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2024-11-09 19:53:01,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:53:01,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:53:01,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:53:01,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:53:01,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:01,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:02,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:02,174 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]. [2024-11-09 19:53:02,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:02,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:02,247 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:02,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:02,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:02,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:02,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:53:02,322 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:53:02,322 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:53:02,322 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:53:02,323 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (1/1) ... [2024-11-09 19:53:02,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:53:02,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:53:02,350 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) [2024-11-09 19:53:02,352 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 [2024-11-09 19:53:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:53:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:53:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:53:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:53:02,435 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:53:02,436 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:53:05,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1653: havoc calculate_output_#t~ret7#1; [2024-11-09 19:53:05,430 INFO L? ?]: Removed 949 outVars from TransFormulas that were not future-live. [2024-11-09 19:53:05,431 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:53:05,458 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:53:05,459 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:53:05,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:53:05 BoogieIcfgContainer [2024-11-09 19:53:05,463 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:53:05,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:53:05,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:53:05,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:53:05,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:53:00" (1/3) ... [2024-11-09 19:53:05,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36106dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:53:05, skipping insertion in model container [2024-11-09 19:53:05,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:53:01" (2/3) ... [2024-11-09 19:53:05,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36106dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:53:05, skipping insertion in model container [2024-11-09 19:53:05,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:53:05" (3/3) ... [2024-11-09 19:53:05,470 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label31.c [2024-11-09 19:53:05,481 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:53:05,481 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:53:05,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:53:05,541 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;@3a6abb0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:53:05,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:53:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 593 states, 591 states have (on average 2.4077834179357023) internal successors, (1423), 592 states have internal predecessors, (1423), 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) [2024-11-09 19:53:05,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 19:53:05,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:05,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:53:05,551 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:05,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1158981995, now seen corresponding path program 1 times [2024-11-09 19:53:05,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:05,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251233185] [2024-11-09 19:53:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:05,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:05,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:53:05,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:05,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251233185] [2024-11-09 19:53:05,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251233185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:05,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:05,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:53:05,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576005478] [2024-11-09 19:53:05,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:05,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:05,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:05,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:05,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:05,845 INFO L87 Difference]: Start difference. First operand has 593 states, 591 states have (on average 2.4077834179357023) internal successors, (1423), 592 states have internal predecessors, (1423), 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 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-09 19:53:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:08,338 INFO L93 Difference]: Finished difference Result 1650 states and 4109 transitions. [2024-11-09 19:53:08,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:08,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2024-11-09 19:53:08,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:08,355 INFO L225 Difference]: With dead ends: 1650 [2024-11-09 19:53:08,355 INFO L226 Difference]: Without dead ends: 980 [2024-11-09 19:53:08,360 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 [2024-11-09 19:53:08,363 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 838 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:08,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 506 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 19:53:08,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2024-11-09 19:53:08,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 974. [2024-11-09 19:53:08,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 973 states have (on average 2.287769784172662) internal successors, (2226), 973 states have internal predecessors, (2226), 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) [2024-11-09 19:53:08,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 2226 transitions. [2024-11-09 19:53:08,429 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 2226 transitions. Word has length 10 [2024-11-09 19:53:08,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:08,430 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 2226 transitions. [2024-11-09 19:53:08,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-09 19:53:08,430 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 2226 transitions. [2024-11-09 19:53:08,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 19:53:08,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:08,432 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 19:53:08,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:53:08,433 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:08,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:08,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1232244952, now seen corresponding path program 1 times [2024-11-09 19:53:08,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:08,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023706928] [2024-11-09 19:53:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:08,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:53:08,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:08,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023706928] [2024-11-09 19:53:08,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023706928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:08,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:08,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:53:08,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276426829] [2024-11-09 19:53:08,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:08,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:08,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:08,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:08,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:08,625 INFO L87 Difference]: Start difference. First operand 974 states and 2226 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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) [2024-11-09 19:53:10,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:10,954 INFO L93 Difference]: Finished difference Result 2821 states and 6537 transitions. [2024-11-09 19:53:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:10,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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 78 [2024-11-09 19:53:10,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:10,961 INFO L225 Difference]: With dead ends: 2821 [2024-11-09 19:53:10,961 INFO L226 Difference]: Without dead ends: 1849 [2024-11-09 19:53:10,962 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 [2024-11-09 19:53:10,963 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 763 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:10,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 584 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 19:53:10,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2024-11-09 19:53:10,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1846. [2024-11-09 19:53:10,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1845 states have (on average 2.12520325203252) internal successors, (3921), 1845 states have internal predecessors, (3921), 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) [2024-11-09 19:53:11,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 3921 transitions. [2024-11-09 19:53:11,001 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 3921 transitions. Word has length 78 [2024-11-09 19:53:11,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:11,001 INFO L471 AbstractCegarLoop]: Abstraction has 1846 states and 3921 transitions. [2024-11-09 19:53:11,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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) [2024-11-09 19:53:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 3921 transitions. [2024-11-09 19:53:11,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 19:53:11,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:11,004 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 19:53:11,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:53:11,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:11,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:11,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1560532521, now seen corresponding path program 1 times [2024-11-09 19:53:11,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:11,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858389806] [2024-11-09 19:53:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:11,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:11,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:53:11,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:11,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858389806] [2024-11-09 19:53:11,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858389806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:11,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:11,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:11,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887414826] [2024-11-09 19:53:11,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:11,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:53:11,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:11,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:53:11,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:53:11,201 INFO L87 Difference]: Start difference. First operand 1846 states and 3921 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 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) [2024-11-09 19:53:14,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:14,613 INFO L93 Difference]: Finished difference Result 5878 states and 12825 transitions. [2024-11-09 19:53:14,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:53:14,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 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 81 [2024-11-09 19:53:14,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:14,626 INFO L225 Difference]: With dead ends: 5878 [2024-11-09 19:53:14,626 INFO L226 Difference]: Without dead ends: 4034 [2024-11-09 19:53:14,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:53:14,629 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 1754 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4192 mSolverCounterSat, 761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 4953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 4192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:14,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 420 Invalid, 4953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [761 Valid, 4192 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 19:53:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2024-11-09 19:53:14,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 4030. [2024-11-09 19:53:14,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4030 states, 4029 states have (on average 2.1250930752047656) internal successors, (8562), 4029 states have internal predecessors, (8562), 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) [2024-11-09 19:53:14,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4030 states to 4030 states and 8562 transitions. [2024-11-09 19:53:14,683 INFO L78 Accepts]: Start accepts. Automaton has 4030 states and 8562 transitions. Word has length 81 [2024-11-09 19:53:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:14,684 INFO L471 AbstractCegarLoop]: Abstraction has 4030 states and 8562 transitions. [2024-11-09 19:53:14,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 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) [2024-11-09 19:53:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 4030 states and 8562 transitions. [2024-11-09 19:53:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-09 19:53:14,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:14,688 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:53:14,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:53:14,689 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:14,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:14,689 INFO L85 PathProgramCache]: Analyzing trace with hash -395494062, now seen corresponding path program 1 times [2024-11-09 19:53:14,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:14,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847148338] [2024-11-09 19:53:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:14,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-09 19:53:14,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:14,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847148338] [2024-11-09 19:53:14,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847148338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:14,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:14,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:53:14,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410794100] [2024-11-09 19:53:14,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:14,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:14,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:14,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:14,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:14,848 INFO L87 Difference]: Start difference. First operand 4030 states and 8562 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 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) [2024-11-09 19:53:16,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:16,577 INFO L93 Difference]: Finished difference Result 10628 states and 22982 transitions. [2024-11-09 19:53:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 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 147 [2024-11-09 19:53:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:16,594 INFO L225 Difference]: With dead ends: 10628 [2024-11-09 19:53:16,594 INFO L226 Difference]: Without dead ends: 6596 [2024-11-09 19:53:16,598 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 [2024-11-09 19:53:16,599 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 745 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:16,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 592 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:53:16,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6596 states. [2024-11-09 19:53:16,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6596 to 5318. [2024-11-09 19:53:16,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 5317 states have (on average 2.034229828850856) internal successors, (10816), 5317 states have internal predecessors, (10816), 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) [2024-11-09 19:53:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 10816 transitions. [2024-11-09 19:53:16,673 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 10816 transitions. Word has length 147 [2024-11-09 19:53:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:16,673 INFO L471 AbstractCegarLoop]: Abstraction has 5318 states and 10816 transitions. [2024-11-09 19:53:16,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 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) [2024-11-09 19:53:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 10816 transitions. [2024-11-09 19:53:16,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-09 19:53:16,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:16,675 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 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, 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] [2024-11-09 19:53:16,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:53:16,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:16,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:16,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1448529775, now seen corresponding path program 1 times [2024-11-09 19:53:16,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:16,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89008899] [2024-11-09 19:53:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:16,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:53:16,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:16,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89008899] [2024-11-09 19:53:16,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89008899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:16,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:16,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 19:53:16,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25118742] [2024-11-09 19:53:16,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:16,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 19:53:16,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:16,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 19:53:16,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:53:16,945 INFO L87 Difference]: Start difference. First operand 5318 states and 10816 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2024-11-09 19:53:19,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:19,371 INFO L93 Difference]: Finished difference Result 13213 states and 27324 transitions. [2024-11-09 19:53:19,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:53:19,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 160 [2024-11-09 19:53:19,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:19,390 INFO L225 Difference]: With dead ends: 13213 [2024-11-09 19:53:19,391 INFO L226 Difference]: Without dead ends: 7897 [2024-11-09 19:53:19,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:53:19,400 INFO L432 NwaCegarLoop]: 1117 mSDtfsCounter, 953 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 3857 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 4446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 3857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:19,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 1280 Invalid, 4446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 3857 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 19:53:19,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7897 states. [2024-11-09 19:53:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7897 to 7881. [2024-11-09 19:53:19,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7881 states, 7880 states have (on average 2.0274111675126902) internal successors, (15976), 7880 states have internal predecessors, (15976), 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) [2024-11-09 19:53:19,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7881 states to 7881 states and 15976 transitions. [2024-11-09 19:53:19,513 INFO L78 Accepts]: Start accepts. Automaton has 7881 states and 15976 transitions. Word has length 160 [2024-11-09 19:53:19,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:19,514 INFO L471 AbstractCegarLoop]: Abstraction has 7881 states and 15976 transitions. [2024-11-09 19:53:19,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2024-11-09 19:53:19,514 INFO L276 IsEmpty]: Start isEmpty. Operand 7881 states and 15976 transitions. [2024-11-09 19:53:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-09 19:53:19,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:19,517 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:53:19,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:53:19,518 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:19,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1465716313, now seen corresponding path program 1 times [2024-11-09 19:53:19,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:19,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728769196] [2024-11-09 19:53:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:19,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-09 19:53:19,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:19,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728769196] [2024-11-09 19:53:19,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728769196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:19,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:19,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:19,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27057971] [2024-11-09 19:53:19,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:19,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:19,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:19,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:19,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:19,735 INFO L87 Difference]: Start difference. First operand 7881 states and 15976 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-09 19:53:21,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:21,723 INFO L93 Difference]: Finished difference Result 19156 states and 38897 transitions. [2024-11-09 19:53:21,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:21,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 266 [2024-11-09 19:53:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:21,745 INFO L225 Difference]: With dead ends: 19156 [2024-11-09 19:53:21,746 INFO L226 Difference]: Without dead ends: 10425 [2024-11-09 19:53:21,753 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 [2024-11-09 19:53:21,755 INFO L432 NwaCegarLoop]: 1242 mSDtfsCounter, 794 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:21,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1315 Invalid, 2336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 19:53:21,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10425 states. [2024-11-09 19:53:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10425 to 7433. [2024-11-09 19:53:21,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7433 states, 7432 states have (on average 1.9842572658772875) internal successors, (14747), 7432 states have internal predecessors, (14747), 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) [2024-11-09 19:53:21,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7433 states to 7433 states and 14747 transitions. [2024-11-09 19:53:21,868 INFO L78 Accepts]: Start accepts. Automaton has 7433 states and 14747 transitions. Word has length 266 [2024-11-09 19:53:21,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:21,868 INFO L471 AbstractCegarLoop]: Abstraction has 7433 states and 14747 transitions. [2024-11-09 19:53:21,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-09 19:53:21,869 INFO L276 IsEmpty]: Start isEmpty. Operand 7433 states and 14747 transitions. [2024-11-09 19:53:21,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-09 19:53:21,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:21,871 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:53:21,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:53:21,871 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:21,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash 939766285, now seen corresponding path program 1 times [2024-11-09 19:53:21,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:21,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586002296] [2024-11-09 19:53:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-09 19:53:22,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:22,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586002296] [2024-11-09 19:53:22,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586002296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:22,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:22,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:22,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224199394] [2024-11-09 19:53:22,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:22,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:22,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:22,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:22,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:22,006 INFO L87 Difference]: Start difference. First operand 7433 states and 14747 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-09 19:53:23,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:23,768 INFO L93 Difference]: Finished difference Result 18696 states and 37435 transitions. [2024-11-09 19:53:23,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:23,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 270 [2024-11-09 19:53:23,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:23,787 INFO L225 Difference]: With dead ends: 18696 [2024-11-09 19:53:23,787 INFO L226 Difference]: Without dead ends: 11264 [2024-11-09 19:53:23,794 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 [2024-11-09 19:53:23,795 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 810 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:23,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 431 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:53:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2024-11-09 19:53:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 8688. [2024-11-09 19:53:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8688 states, 8687 states have (on average 1.9759410613560493) internal successors, (17165), 8687 states have internal predecessors, (17165), 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) [2024-11-09 19:53:23,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8688 states to 8688 states and 17165 transitions. [2024-11-09 19:53:23,892 INFO L78 Accepts]: Start accepts. Automaton has 8688 states and 17165 transitions. Word has length 270 [2024-11-09 19:53:23,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:23,892 INFO L471 AbstractCegarLoop]: Abstraction has 8688 states and 17165 transitions. [2024-11-09 19:53:23,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-09 19:53:23,893 INFO L276 IsEmpty]: Start isEmpty. Operand 8688 states and 17165 transitions. [2024-11-09 19:53:23,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-09 19:53:23,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:23,895 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:53:23,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:53:23,895 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:23,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:23,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1807661019, now seen corresponding path program 1 times [2024-11-09 19:53:23,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:23,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74953853] [2024-11-09 19:53:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:23,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-09 19:53:24,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:24,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74953853] [2024-11-09 19:53:24,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74953853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:24,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:24,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:24,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107630737] [2024-11-09 19:53:24,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:24,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:24,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:24,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:24,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:24,034 INFO L87 Difference]: Start difference. First operand 8688 states and 17165 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-09 19:53:25,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:25,932 INFO L93 Difference]: Finished difference Result 22064 states and 43676 transitions. [2024-11-09 19:53:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:25,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 283 [2024-11-09 19:53:25,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:25,947 INFO L225 Difference]: With dead ends: 22064 [2024-11-09 19:53:25,948 INFO L226 Difference]: Without dead ends: 13378 [2024-11-09 19:53:25,955 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 [2024-11-09 19:53:25,957 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 842 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1977 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 1977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:25,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 400 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 1977 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:53:25,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13378 states. [2024-11-09 19:53:26,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13378 to 11670. [2024-11-09 19:53:26,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11670 states, 11669 states have (on average 1.9721484274573657) internal successors, (23013), 11669 states have internal predecessors, (23013), 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) [2024-11-09 19:53:26,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11670 states to 11670 states and 23013 transitions. [2024-11-09 19:53:26,075 INFO L78 Accepts]: Start accepts. Automaton has 11670 states and 23013 transitions. Word has length 283 [2024-11-09 19:53:26,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:26,075 INFO L471 AbstractCegarLoop]: Abstraction has 11670 states and 23013 transitions. [2024-11-09 19:53:26,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-09 19:53:26,075 INFO L276 IsEmpty]: Start isEmpty. Operand 11670 states and 23013 transitions. [2024-11-09 19:53:26,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-09 19:53:26,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:26,079 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:53:26,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:53:26,079 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:26,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:26,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1031483674, now seen corresponding path program 1 times [2024-11-09 19:53:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:26,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589547706] [2024-11-09 19:53:26,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:26,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 19:53:26,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:26,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589547706] [2024-11-09 19:53:26,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589547706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:26,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:26,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:26,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963447001] [2024-11-09 19:53:26,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:26,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:26,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:26,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:26,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:26,326 INFO L87 Difference]: Start difference. First operand 11670 states and 23013 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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) [2024-11-09 19:53:28,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:28,259 INFO L93 Difference]: Finished difference Result 28917 states and 57392 transitions. [2024-11-09 19:53:28,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:28,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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 327 [2024-11-09 19:53:28,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:28,277 INFO L225 Difference]: With dead ends: 28917 [2024-11-09 19:53:28,277 INFO L226 Difference]: Without dead ends: 16823 [2024-11-09 19:53:28,287 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 [2024-11-09 19:53:28,287 INFO L432 NwaCegarLoop]: 1203 mSDtfsCounter, 741 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:28,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1279 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:53:28,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16823 states. [2024-11-09 19:53:28,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16823 to 16388. [2024-11-09 19:53:28,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16388 states, 16387 states have (on average 1.9591139317751876) internal successors, (32104), 16387 states have internal predecessors, (32104), 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) [2024-11-09 19:53:28,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16388 states to 16388 states and 32104 transitions. [2024-11-09 19:53:28,437 INFO L78 Accepts]: Start accepts. Automaton has 16388 states and 32104 transitions. Word has length 327 [2024-11-09 19:53:28,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:28,437 INFO L471 AbstractCegarLoop]: Abstraction has 16388 states and 32104 transitions. [2024-11-09 19:53:28,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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) [2024-11-09 19:53:28,438 INFO L276 IsEmpty]: Start isEmpty. Operand 16388 states and 32104 transitions. [2024-11-09 19:53:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-09 19:53:28,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:28,442 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:53:28,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:53:28,442 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:28,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:28,442 INFO L85 PathProgramCache]: Analyzing trace with hash 558983546, now seen corresponding path program 1 times [2024-11-09 19:53:28,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:28,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794653941] [2024-11-09 19:53:28,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:28,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-09 19:53:28,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:28,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794653941] [2024-11-09 19:53:28,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794653941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:28,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:28,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:28,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452595415] [2024-11-09 19:53:28,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:28,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:28,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:28,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:28,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:28,793 INFO L87 Difference]: Start difference. First operand 16388 states and 32104 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2024-11-09 19:53:30,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:30,675 INFO L93 Difference]: Finished difference Result 39207 states and 76925 transitions. [2024-11-09 19:53:30,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:30,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 334 [2024-11-09 19:53:30,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:30,701 INFO L225 Difference]: With dead ends: 39207 [2024-11-09 19:53:30,702 INFO L226 Difference]: Without dead ends: 22387 [2024-11-09 19:53:30,715 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 [2024-11-09 19:53:30,716 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 752 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:30,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1135 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:53:30,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22387 states. [2024-11-09 19:53:30,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22387 to 19392. [2024-11-09 19:53:30,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19392 states, 19391 states have (on average 1.963281934918261) internal successors, (38070), 19391 states have internal predecessors, (38070), 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) [2024-11-09 19:53:31,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19392 states to 19392 states and 38070 transitions. [2024-11-09 19:53:31,031 INFO L78 Accepts]: Start accepts. Automaton has 19392 states and 38070 transitions. Word has length 334 [2024-11-09 19:53:31,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:31,032 INFO L471 AbstractCegarLoop]: Abstraction has 19392 states and 38070 transitions. [2024-11-09 19:53:31,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2024-11-09 19:53:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand 19392 states and 38070 transitions. [2024-11-09 19:53:31,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-09 19:53:31,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:31,041 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:53:31,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:53:31,041 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:31,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1236395924, now seen corresponding path program 1 times [2024-11-09 19:53:31,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:31,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828754741] [2024-11-09 19:53:31,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:31,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-09 19:53:31,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:31,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828754741] [2024-11-09 19:53:31,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828754741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:31,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:31,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:31,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395394733] [2024-11-09 19:53:31,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:31,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:31,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:31,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:31,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:31,257 INFO L87 Difference]: Start difference. First operand 19392 states and 38070 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2024-11-09 19:53:33,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:33,008 INFO L93 Difference]: Finished difference Result 45182 states and 89238 transitions. [2024-11-09 19:53:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:33,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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 409 [2024-11-09 19:53:33,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:33,038 INFO L225 Difference]: With dead ends: 45182 [2024-11-09 19:53:33,038 INFO L226 Difference]: Without dead ends: 25366 [2024-11-09 19:53:33,051 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 [2024-11-09 19:53:33,052 INFO L432 NwaCegarLoop]: 1094 mSDtfsCounter, 700 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1893 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 1893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:33,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1154 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 1893 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:53:33,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25366 states. [2024-11-09 19:53:33,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25366 to 19366. [2024-11-09 19:53:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19366 states, 19365 states have (on average 1.9641105086496256) internal successors, (38035), 19365 states have internal predecessors, (38035), 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) [2024-11-09 19:53:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19366 states to 19366 states and 38035 transitions. [2024-11-09 19:53:33,304 INFO L78 Accepts]: Start accepts. Automaton has 19366 states and 38035 transitions. Word has length 409 [2024-11-09 19:53:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:33,305 INFO L471 AbstractCegarLoop]: Abstraction has 19366 states and 38035 transitions. [2024-11-09 19:53:33,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2024-11-09 19:53:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 19366 states and 38035 transitions. [2024-11-09 19:53:33,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-09 19:53:33,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:33,309 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-11-09 19:53:33,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:53:33,309 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:33,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:33,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1365436453, now seen corresponding path program 1 times [2024-11-09 19:53:33,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:33,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392908424] [2024-11-09 19:53:33,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:33,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-09 19:53:33,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:33,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392908424] [2024-11-09 19:53:33,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392908424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:33,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:33,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:33,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108162272] [2024-11-09 19:53:33,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:33,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:33,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:33,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:33,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:33,664 INFO L87 Difference]: Start difference. First operand 19366 states and 38035 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2024-11-09 19:53:35,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:35,635 INFO L93 Difference]: Finished difference Result 47268 states and 92910 transitions. [2024-11-09 19:53:35,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:35,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 410 [2024-11-09 19:53:35,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:35,738 INFO L225 Difference]: With dead ends: 47268 [2024-11-09 19:53:35,739 INFO L226 Difference]: Without dead ends: 27041 [2024-11-09 19:53:35,745 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 [2024-11-09 19:53:35,745 INFO L432 NwaCegarLoop]: 986 mSDtfsCounter, 805 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:35,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1026 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:53:35,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27041 states. [2024-11-09 19:53:35,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27041 to 24472. [2024-11-09 19:53:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24472 states, 24471 states have (on average 1.9570920681623145) internal successors, (47892), 24471 states have internal predecessors, (47892), 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) [2024-11-09 19:53:35,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24472 states to 24472 states and 47892 transitions. [2024-11-09 19:53:35,938 INFO L78 Accepts]: Start accepts. Automaton has 24472 states and 47892 transitions. Word has length 410 [2024-11-09 19:53:35,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:35,939 INFO L471 AbstractCegarLoop]: Abstraction has 24472 states and 47892 transitions. [2024-11-09 19:53:35,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2024-11-09 19:53:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 24472 states and 47892 transitions. [2024-11-09 19:53:35,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-09 19:53:35,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:35,943 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-09 19:53:35,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:53:35,944 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:35,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:35,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1063215799, now seen corresponding path program 1 times [2024-11-09 19:53:35,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:35,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452066138] [2024-11-09 19:53:35,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:35,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 19:53:36,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:36,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452066138] [2024-11-09 19:53:36,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452066138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:36,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:36,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:53:36,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36097357] [2024-11-09 19:53:36,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:36,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:53:36,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:36,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:53:36,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:53:36,349 INFO L87 Difference]: Start difference. First operand 24472 states and 47892 transitions. Second operand has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2024-11-09 19:53:39,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:39,168 INFO L93 Difference]: Finished difference Result 62636 states and 122533 transitions. [2024-11-09 19:53:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:53:39,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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 414 [2024-11-09 19:53:39,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:39,205 INFO L225 Difference]: With dead ends: 62636 [2024-11-09 19:53:39,206 INFO L226 Difference]: Without dead ends: 38166 [2024-11-09 19:53:39,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:53:39,218 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 1554 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 3791 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 4311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 3791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:39,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 208 Invalid, 4311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 3791 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 19:53:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38166 states. [2024-11-09 19:53:39,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38166 to 34307. [2024-11-09 19:53:39,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34307 states, 34306 states have (on average 1.958432927184749) internal successors, (67186), 34306 states have internal predecessors, (67186), 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) [2024-11-09 19:53:39,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34307 states to 34307 states and 67186 transitions. [2024-11-09 19:53:39,530 INFO L78 Accepts]: Start accepts. Automaton has 34307 states and 67186 transitions. Word has length 414 [2024-11-09 19:53:39,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:39,531 INFO L471 AbstractCegarLoop]: Abstraction has 34307 states and 67186 transitions. [2024-11-09 19:53:39,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2024-11-09 19:53:39,531 INFO L276 IsEmpty]: Start isEmpty. Operand 34307 states and 67186 transitions. [2024-11-09 19:53:39,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-09 19:53:39,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:39,535 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:53:39,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:53:39,536 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:39,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1034207068, now seen corresponding path program 1 times [2024-11-09 19:53:39,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:39,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560688807] [2024-11-09 19:53:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:39,888 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 490 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 19:53:39,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:39,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560688807] [2024-11-09 19:53:39,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560688807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:39,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:39,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:39,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983081455] [2024-11-09 19:53:39,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:39,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:39,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:39,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:39,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:39,890 INFO L87 Difference]: Start difference. First operand 34307 states and 67186 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2024-11-09 19:53:41,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:41,883 INFO L93 Difference]: Finished difference Result 77578 states and 152167 transitions. [2024-11-09 19:53:41,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:41,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 433 [2024-11-09 19:53:41,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:41,932 INFO L225 Difference]: With dead ends: 77578 [2024-11-09 19:53:41,932 INFO L226 Difference]: Without dead ends: 43273 [2024-11-09 19:53:41,953 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 [2024-11-09 19:53:41,953 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 752 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:41,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 339 Invalid, 2173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:53:41,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43273 states. [2024-11-09 19:53:42,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43273 to 42837. [2024-11-09 19:53:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42837 states, 42836 states have (on average 1.9541040246521617) internal successors, (83706), 42836 states have internal predecessors, (83706), 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) [2024-11-09 19:53:42,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42837 states to 42837 states and 83706 transitions. [2024-11-09 19:53:42,417 INFO L78 Accepts]: Start accepts. Automaton has 42837 states and 83706 transitions. Word has length 433 [2024-11-09 19:53:42,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:42,417 INFO L471 AbstractCegarLoop]: Abstraction has 42837 states and 83706 transitions. [2024-11-09 19:53:42,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2024-11-09 19:53:42,417 INFO L276 IsEmpty]: Start isEmpty. Operand 42837 states and 83706 transitions. [2024-11-09 19:53:42,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-09 19:53:42,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:42,422 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 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] [2024-11-09 19:53:42,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:53:42,422 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:42,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:42,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1354479479, now seen corresponding path program 1 times [2024-11-09 19:53:42,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:42,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4556306] [2024-11-09 19:53:42,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:42,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:42,869 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 19:53:42,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:42,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4556306] [2024-11-09 19:53:42,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4556306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:42,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:42,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:42,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435550073] [2024-11-09 19:53:42,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:42,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:42,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:42,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:42,870 INFO L87 Difference]: Start difference. First operand 42837 states and 83706 transitions. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2024-11-09 19:53:44,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:44,690 INFO L93 Difference]: Finished difference Result 98905 states and 192785 transitions. [2024-11-09 19:53:44,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:44,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 434 [2024-11-09 19:53:44,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:44,753 INFO L225 Difference]: With dead ends: 98905 [2024-11-09 19:53:44,753 INFO L226 Difference]: Without dead ends: 55216 [2024-11-09 19:53:44,782 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 [2024-11-09 19:53:44,782 INFO L432 NwaCegarLoop]: 1131 mSDtfsCounter, 732 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:44,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1187 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:53:44,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55216 states. [2024-11-09 19:53:45,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55216 to 53066. [2024-11-09 19:53:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53066 states, 53065 states have (on average 1.9402619429002168) internal successors, (102960), 53065 states have internal predecessors, (102960), 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) [2024-11-09 19:53:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53066 states to 53066 states and 102960 transitions. [2024-11-09 19:53:45,402 INFO L78 Accepts]: Start accepts. Automaton has 53066 states and 102960 transitions. Word has length 434 [2024-11-09 19:53:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:45,402 INFO L471 AbstractCegarLoop]: Abstraction has 53066 states and 102960 transitions. [2024-11-09 19:53:45,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2024-11-09 19:53:45,402 INFO L276 IsEmpty]: Start isEmpty. Operand 53066 states and 102960 transitions. [2024-11-09 19:53:45,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-09 19:53:45,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:45,408 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-09 19:53:45,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:53:45,408 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:45,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:45,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2130884250, now seen corresponding path program 1 times [2024-11-09 19:53:45,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:45,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455213336] [2024-11-09 19:53:45,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:45,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-09 19:53:45,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:45,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455213336] [2024-11-09 19:53:45,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455213336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:45,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:45,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:45,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279953778] [2024-11-09 19:53:45,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:45,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:45,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:45,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:45,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:45,997 INFO L87 Difference]: Start difference. First operand 53066 states and 102960 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2024-11-09 19:53:48,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:48,024 INFO L93 Difference]: Finished difference Result 122353 states and 237348 transitions. [2024-11-09 19:53:48,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:48,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 457 [2024-11-09 19:53:48,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:48,118 INFO L225 Difference]: With dead ends: 122353 [2024-11-09 19:53:48,118 INFO L226 Difference]: Without dead ends: 68860 [2024-11-09 19:53:48,156 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 [2024-11-09 19:53:48,156 INFO L432 NwaCegarLoop]: 1136 mSDtfsCounter, 653 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:48,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1194 Invalid, 2200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:53:48,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68860 states. [2024-11-09 19:53:48,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68860 to 67988. [2024-11-09 19:53:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67988 states, 67987 states have (on average 1.9291040934296262) internal successors, (131154), 67987 states have internal predecessors, (131154), 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) [2024-11-09 19:53:49,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67988 states to 67988 states and 131154 transitions. [2024-11-09 19:53:49,088 INFO L78 Accepts]: Start accepts. Automaton has 67988 states and 131154 transitions. Word has length 457 [2024-11-09 19:53:49,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:49,089 INFO L471 AbstractCegarLoop]: Abstraction has 67988 states and 131154 transitions. [2024-11-09 19:53:49,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2024-11-09 19:53:49,089 INFO L276 IsEmpty]: Start isEmpty. Operand 67988 states and 131154 transitions. [2024-11-09 19:53:49,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-09 19:53:49,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:49,095 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 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] [2024-11-09 19:53:49,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:53:49,095 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:49,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1099394036, now seen corresponding path program 1 times [2024-11-09 19:53:49,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:49,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632102593] [2024-11-09 19:53:49,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:49,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 19:53:49,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:49,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632102593] [2024-11-09 19:53:49,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632102593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:49,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:49,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:49,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524338783] [2024-11-09 19:53:49,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:49,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:49,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:49,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:49,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:49,517 INFO L87 Difference]: Start difference. First operand 67988 states and 131154 transitions. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2024-11-09 19:53:51,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:51,735 INFO L93 Difference]: Finished difference Result 143678 states and 277283 transitions. [2024-11-09 19:53:51,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:51,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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 457 [2024-11-09 19:53:51,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:51,816 INFO L225 Difference]: With dead ends: 143678 [2024-11-09 19:53:51,816 INFO L226 Difference]: Without dead ends: 75262 [2024-11-09 19:53:51,843 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 [2024-11-09 19:53:51,843 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 793 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:51,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 253 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:53:51,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75262 states. [2024-11-09 19:53:52,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75262 to 73104. [2024-11-09 19:53:52,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73104 states, 73103 states have (on average 1.9286622984008863) internal successors, (140991), 73103 states have internal predecessors, (140991), 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) [2024-11-09 19:53:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73104 states to 73104 states and 140991 transitions. [2024-11-09 19:53:52,775 INFO L78 Accepts]: Start accepts. Automaton has 73104 states and 140991 transitions. Word has length 457 [2024-11-09 19:53:52,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:52,775 INFO L471 AbstractCegarLoop]: Abstraction has 73104 states and 140991 transitions. [2024-11-09 19:53:52,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2024-11-09 19:53:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 73104 states and 140991 transitions. [2024-11-09 19:53:52,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-09 19:53:52,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:52,780 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:53:52,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:53:52,780 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:52,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:52,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1201365979, now seen corresponding path program 1 times [2024-11-09 19:53:52,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:52,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091371480] [2024-11-09 19:53:52,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:52,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:53,409 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-09 19:53:53,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:53,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091371480] [2024-11-09 19:53:53,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091371480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:53,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:53,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:53,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502733657] [2024-11-09 19:53:53,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:53,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:53,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:53,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:53,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:53,412 INFO L87 Difference]: Start difference. First operand 73104 states and 140991 transitions. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2024-11-09 19:53:55,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:55,360 INFO L93 Difference]: Finished difference Result 156880 states and 302457 transitions. [2024-11-09 19:53:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:55,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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 459 [2024-11-09 19:53:55,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:55,467 INFO L225 Difference]: With dead ends: 156880 [2024-11-09 19:53:55,467 INFO L226 Difference]: Without dead ends: 83352 [2024-11-09 19:53:55,513 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 [2024-11-09 19:53:55,513 INFO L432 NwaCegarLoop]: 1079 mSDtfsCounter, 605 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:55,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1144 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:53:55,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83352 states. [2024-11-09 19:53:56,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83352 to 78653. [2024-11-09 19:53:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78653 states, 78652 states have (on average 1.9235874485073488) internal successors, (151294), 78652 states have internal predecessors, (151294), 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) [2024-11-09 19:53:56,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78653 states to 78653 states and 151294 transitions. [2024-11-09 19:53:56,473 INFO L78 Accepts]: Start accepts. Automaton has 78653 states and 151294 transitions. Word has length 459 [2024-11-09 19:53:56,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:53:56,473 INFO L471 AbstractCegarLoop]: Abstraction has 78653 states and 151294 transitions. [2024-11-09 19:53:56,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2024-11-09 19:53:56,474 INFO L276 IsEmpty]: Start isEmpty. Operand 78653 states and 151294 transitions. [2024-11-09 19:53:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-09 19:53:56,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:53:56,480 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:53:56,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 19:53:56,480 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:53:56,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:53:56,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1681547127, now seen corresponding path program 1 times [2024-11-09 19:53:56,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:53:56,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997062058] [2024-11-09 19:53:56,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:53:56,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:53:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:53:57,061 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-09 19:53:57,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:53:57,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997062058] [2024-11-09 19:53:57,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997062058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:53:57,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:53:57,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:53:57,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190235888] [2024-11-09 19:53:57,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:53:57,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:53:57,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:53:57,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:53:57,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:53:57,063 INFO L87 Difference]: Start difference. First operand 78653 states and 151294 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-11-09 19:53:59,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:53:59,197 INFO L93 Difference]: Finished difference Result 181200 states and 348873 transitions. [2024-11-09 19:53:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:53:59,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 504 [2024-11-09 19:53:59,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:53:59,543 INFO L225 Difference]: With dead ends: 181200 [2024-11-09 19:53:59,543 INFO L226 Difference]: Without dead ends: 102110 [2024-11-09 19:53:59,590 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 [2024-11-09 19:53:59,593 INFO L432 NwaCegarLoop]: 1026 mSDtfsCounter, 842 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:53:59,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1068 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:53:59,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102110 states. [2024-11-09 19:54:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102110 to 96967. [2024-11-09 19:54:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96967 states, 96966 states have (on average 1.9203535259781779) internal successors, (186209), 96966 states have internal predecessors, (186209), 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) [2024-11-09 19:54:00,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96967 states to 96967 states and 186209 transitions. [2024-11-09 19:54:00,912 INFO L78 Accepts]: Start accepts. Automaton has 96967 states and 186209 transitions. Word has length 504 [2024-11-09 19:54:00,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:54:00,912 INFO L471 AbstractCegarLoop]: Abstraction has 96967 states and 186209 transitions. [2024-11-09 19:54:00,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-11-09 19:54:00,913 INFO L276 IsEmpty]: Start isEmpty. Operand 96967 states and 186209 transitions. [2024-11-09 19:54:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-09 19:54:00,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:54:00,927 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:54:00,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 19:54:00,928 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:54:00,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:54:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash 200381838, now seen corresponding path program 1 times [2024-11-09 19:54:00,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:54:00,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421235122] [2024-11-09 19:54:00,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:54:00,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:54:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:54:01,381 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-11-09 19:54:01,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:54:01,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421235122] [2024-11-09 19:54:01,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421235122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:54:01,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:54:01,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:54:01,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005513584] [2024-11-09 19:54:01,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:54:01,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:54:01,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:54:01,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:54:01,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:54:01,385 INFO L87 Difference]: Start difference. First operand 96967 states and 186209 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-09 19:54:03,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:54:03,846 INFO L93 Difference]: Finished difference Result 209751 states and 402811 transitions. [2024-11-09 19:54:03,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:54:03,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 549 [2024-11-09 19:54:03,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:54:04,014 INFO L225 Difference]: With dead ends: 209751 [2024-11-09 19:54:04,015 INFO L226 Difference]: Without dead ends: 112786 [2024-11-09 19:54:04,059 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 [2024-11-09 19:54:04,060 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 667 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 2138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:54:04,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 297 Invalid, 2138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:54:04,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112786 states. [2024-11-09 19:54:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112786 to 109779. [2024-11-09 19:54:05,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109779 states, 109778 states have (on average 1.919218787006504) internal successors, (210688), 109778 states have internal predecessors, (210688), 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) [2024-11-09 19:54:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109779 states to 109779 states and 210688 transitions. [2024-11-09 19:54:05,598 INFO L78 Accepts]: Start accepts. Automaton has 109779 states and 210688 transitions. Word has length 549 [2024-11-09 19:54:05,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:54:05,599 INFO L471 AbstractCegarLoop]: Abstraction has 109779 states and 210688 transitions. [2024-11-09 19:54:05,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-09 19:54:05,599 INFO L276 IsEmpty]: Start isEmpty. Operand 109779 states and 210688 transitions. [2024-11-09 19:54:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-09 19:54:05,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:54:05,614 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:54:05,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 19:54:05,614 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:54:05,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:54:05,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1416963660, now seen corresponding path program 1 times [2024-11-09 19:54:05,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:54:05,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482097987] [2024-11-09 19:54:05,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:54:05,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:54:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:54:06,313 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-11-09 19:54:06,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:54:06,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482097987] [2024-11-09 19:54:06,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482097987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:54:06,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:54:06,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 19:54:06,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274353169] [2024-11-09 19:54:06,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:54:06,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 19:54:06,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:54:06,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 19:54:06,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:54:06,314 INFO L87 Difference]: Start difference. First operand 109779 states and 210688 transitions. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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) [2024-11-09 19:54:10,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:54:10,445 INFO L93 Difference]: Finished difference Result 258400 states and 495910 transitions. [2024-11-09 19:54:10,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 19:54:10,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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 569 [2024-11-09 19:54:10,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:54:10,635 INFO L225 Difference]: With dead ends: 258400 [2024-11-09 19:54:10,635 INFO L226 Difference]: Without dead ends: 148194 [2024-11-09 19:54:10,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:54:10,699 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 2288 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 6517 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 6960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 6517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:54:10,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 301 Invalid, 6960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 6517 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 19:54:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148194 states. [2024-11-09 19:54:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148194 to 128981. [2024-11-09 19:54:12,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128981 states, 128980 states have (on average 1.9130097689564274) internal successors, (246740), 128980 states have internal predecessors, (246740), 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) [2024-11-09 19:54:13,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128981 states to 128981 states and 246740 transitions. [2024-11-09 19:54:13,210 INFO L78 Accepts]: Start accepts. Automaton has 128981 states and 246740 transitions. Word has length 569 [2024-11-09 19:54:13,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:54:13,210 INFO L471 AbstractCegarLoop]: Abstraction has 128981 states and 246740 transitions. [2024-11-09 19:54:13,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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) [2024-11-09 19:54:13,210 INFO L276 IsEmpty]: Start isEmpty. Operand 128981 states and 246740 transitions. [2024-11-09 19:54:13,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-09 19:54:13,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:54:13,230 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:54:13,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 19:54:13,230 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:54:13,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:54:13,234 INFO L85 PathProgramCache]: Analyzing trace with hash 376671821, now seen corresponding path program 1 times [2024-11-09 19:54:13,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:54:13,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576543869] [2024-11-09 19:54:13,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:54:13,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:54:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:54:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-11-09 19:54:13,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:54:13,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576543869] [2024-11-09 19:54:13,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576543869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:54:13,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:54:13,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 19:54:13,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226371164] [2024-11-09 19:54:13,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:54:13,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 19:54:13,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:54:13,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 19:54:13,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:54:13,518 INFO L87 Difference]: Start difference. First operand 128981 states and 246740 transitions. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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) [2024-11-09 19:54:17,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:54:17,664 INFO L93 Difference]: Finished difference Result 293823 states and 562242 transitions. [2024-11-09 19:54:17,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 19:54:17,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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 569 [2024-11-09 19:54:17,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:54:17,864 INFO L225 Difference]: With dead ends: 293823 [2024-11-09 19:54:17,864 INFO L226 Difference]: Without dead ends: 163992 [2024-11-09 19:54:17,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:54:17,910 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 3158 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4506 mSolverCounterSat, 742 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3158 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 5248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 742 IncrementalHoareTripleChecker+Valid, 4506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:54:17,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3158 Valid, 178 Invalid, 5248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [742 Valid, 4506 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 19:54:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163992 states. [2024-11-09 19:54:19,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163992 to 135810. [2024-11-09 19:54:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135810 states, 135809 states have (on average 1.9108159253068648) internal successors, (259506), 135809 states have internal predecessors, (259506), 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) [2024-11-09 19:54:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135810 states to 135810 states and 259506 transitions. [2024-11-09 19:54:20,129 INFO L78 Accepts]: Start accepts. Automaton has 135810 states and 259506 transitions. Word has length 569 [2024-11-09 19:54:20,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:54:20,130 INFO L471 AbstractCegarLoop]: Abstraction has 135810 states and 259506 transitions. [2024-11-09 19:54:20,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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) [2024-11-09 19:54:20,130 INFO L276 IsEmpty]: Start isEmpty. Operand 135810 states and 259506 transitions. [2024-11-09 19:54:20,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-09 19:54:20,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:54:20,138 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:54:20,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 19:54:20,139 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:54:20,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:54:20,139 INFO L85 PathProgramCache]: Analyzing trace with hash 671450649, now seen corresponding path program 1 times [2024-11-09 19:54:20,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:54:20,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497154306] [2024-11-09 19:54:20,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:54:20,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:54:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat